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The USB C OTG wiring diagram below shows the “ USB type C to USB A female 2.0 type cable assembly”:

Before discussing the USB C OTG wiring diagram: Let’s lake a brief overview an OTG cable, or OTG connector.
An OTG C or On The Go adapter enable you to connect a full sized USB pen-drive or USB A cable to your phone through the Micro USB-C charging port.

They can be purchased separately from retailers, as they don’t come with a box in general when you purchase any device. The main purpose of USB-C OTG is a transfer of data with pen-drives as well as enable connectivity to peripherals like mouse and keyboard.

The USB Type-C cable, receptacle, and plug are designed to be more sturdy and user-friendly than existing USB cables namely Type-A and micro USB Type-B.
Let’s take an example, Type-A plugs connect only in one position to a Type-A receptacle (female port). The Type-C connector, however, lets you connect the device downside up or upside down. By making this simple change, USB devices can be inserted correctly into USB ports without frustration.

USB C 2.0 OTG (OTG) product is a portable device, that can function either as a USB host or a USB peripheral. All USB 2.0/ 3.0 OTG products are required to use a micro-B/micro-C receptacle.

Fig. shows the receptacle pin assignment for supporting a semi-featured Type-C cable. A full-featured cable supports both USB 2.0 and USB 3.1 (higher data speed). Below is the USB Type C 2.0 OTG wiring connection USB A to USB C:

Also check, USB type C Wiring Diagram for Charging Cable

Table 1 shows the pin-out for both receptacle and plug of USB OTG.

Description:

The OTG device functions as a USB peripheral. When acting as a USB peripheral, the portable USB 2.0 OTG product observe VBUS  signal to determine whether it is connected to a USB host or external mobile charger.

• The Pin no A1, A12, B1, B12, of USB C port is connected to the Pin no.4 USB type A receptacle. This pin is named as the ground (GND) through that pin ground signal is established.
• The Pin no A4, A9, B4, B9, of USB C male is connected to Pin no.1 from USB type A receptacle male. This pin is the power supply (5+ volt/ VBUS) through that pin the power is supplied to the device and it can be host or peripherals.
• The Pin no. A6 of the C- port is connected to Pin no.3 from USB type A receptacle.
  Also, the Pin no. A7 of micro USB C is connected to the Pin no.2 from USB type A female.Pin no. 2/A7 (D-) and pin no. 3/A6 (D+) both as a pair are used as a differential data pin in each port.
• The colors code of wire used in the USB C OTG cable are Red, White, Green, Grey/Black, corresponding to pin 1, 2, 3 & 4.Check USB C color code of internal cable here!!
• (CC pin) A5 at USB port C side is connected to Vbus pin through a resistor of 5.1k ohm.

Some applications of OTG cable are mention below, other than techie, most of the general users don’t know what is the use of OTG adaptors:

• Connecting keyboards and mouse to the mobile phones to enhance usability of mobile apps.
• Accessing/ copying/ deleting the USB pen drives data and external hard drives.
• Transfer photos directly from a PC or compatible camera on to the phone.
• Connecting smartphone directly to the devices like photo printers/ 3D printers.

USB 3.X attained its massive speed increase with the addition of 5 more wires containing 2 pairs, one each for TX and RX (viz, TX+/ TX-, RX-, RX+), and an additional ground return.
The creative part is how to identify additional 5 connections, thus allocating new USB C wire color codes to the wires other than existing USB 2.0 wires.
USB 2.0 and 3.0 “type A” connectors are interchangeable and compatible, the extra 5 pins added such a way that there should be no compatibility issues.

Below image showing USB C type C cable color code showing signal name at USB C plug:

^ Blue colored Mylar material Foil with conducting inner layer/ separate connector is optional and may not present in some wires also its presence does not disobey the USB protocol either, these are independent ground but connected at end.

*All signal names viewing at USB type C plug end and USB C wires inside.

(refer to wiring diagram, USB type A connection with USB C  3.0).

You could be interested in USB C 2.0 & 3.0 pinout and their detailed function, do check here -> USB C pinout for 2.o and 3.0

USB type c wire color table/ port USB C color code :

Conductor Color		Pins At Port	Signal Name
	RED	A4,B4,A9,B9	VBUS
	WHITE	A7	Dn1/ D-
	GREEN	A6	Dp1/ D+
	BLACK	A1,B1,A12,B12	GND
N/A		A5	CC
N/A		B5	VCON
	BLUE	A3	TX1-
	YELLOW	A2	TX1+
	PURPLE	B10	RX1-
N/A		GND	GND
	ORANGE	B11	RX1+
N/A		SHELL	SHIELD

• A6 and A7 are differential Data lines. They are used as Data lines (D+ & D-) for USB 2.0 connections only. A6 and A7 are usually un-shielded pair of wires, in which A6 is Green in color, and the color of A7 is white.
• A4+B4+A9+B9 (VBUS) is an individual wire for power supply. Its color code is red and all these pins are common at terminal end. A1,B1,A12,B12 (GND) is an individual wire for power supply. Its color code is black and all these pins are common at terminal end.
• (B10+B11) are shielded pair of high speed data receive signal (RX1- & RX1+), in which B10 is coded as purple and B11 is coded as orange.
  They are shielded with conducting foil generally made of aluminum material. If there is extra conductor along with this pair it is a ground.
  
• (A2+A3) are shielded pair of high speed data transmit signal (TX1- & TX1+), in which A2 is coded as blue and A3 is coded as yellow.
  They are also shielded with conducting foil generally made of aluminum material. If there is extra conductor along with this pair it is a ground. The shield is individually grounded at both ends.

Note that the mention color code above is as per USB C standards, there may be some cable that don’t have exact same color of wiring. Some manufacture may have different color of wires in the USB type C cables.

Generally, Vbus/ Gnd /D+ /D-  have fixed color code and followed by most manufacture, other signals may have different pattern like in color combination.
Few example are: (TX1+ TX1-) & (RX1+ RX1-) could be of black and white color but in different color jacket/ Mylar foil.

The USB implementer Forum sets the standards for data transfer through  various cables and connectors one can use on the end of those cables, that also includes USB communication protocols. This post will take you to the USB C wiring diagram/ USB C 3.0 wiring diagram and related information in detail.

USB 3.1 Gen 1 which is formerly known as USB 3.0, later renamed USB 3.2 Gen 1×1 port.

This means that USB 3.0 is the same as USB 3.1 Gen 1.
Also, USB 3.1 Gen 1 is the same as USB 3.2 Gen 1×1.

This can be concluded that all USB 3.0/ USB 3.1 Gen1/ USB 3.2 Gen 1×1 are having same hardware interface and USB protocol. All new generation USB 3.x are made backward compatible to USB 3.0 and 2.0; USB Type-C to USB-A Male 3.1/ 3.2 Gen2 Adapter charger cable supports data transfer rate upto 10Gbps

USB C wiring diagram to male USB 3.1/ 3.2 type A Gen1/ Gen2:

As you know that USB C 3.x is made to be operated reversibly, also by looking at pin out diagram of USB c male you can see that all the pins termed A could be interchangeably used with that of termed B. check USB Type C 3.0  pinout!!

Also check USB C wires Color Code here!!

The table shows below the connection between pins on both the end of the plugs and their functions with respective symbols:

• According to the USB standard, VBUS carries a +5v and the default output current of up to 3.0A.
• Pin no.1 from USB type A 3.1 male is connected to the Pin no A4, A9, B4, B9, of USB type C. This pin is named as the (+VDD/ VBUS) through which the power is supplied to the device or any equipment which is also an indicator of handshake signal, that convey the system that “the device is connected”.
• Pin no.4 from (Port1) USB type A 3.1 male is connected to the Pin no A1, A12, B1, B12, of (Port2) USB-C. This pin is the ground return (GND). This is individual black color wire.
• Pin no.3 from USB 3.1 type A male is connected to the Pin no. A6 of port 2.
  Pin no.2 from USB type A male is connected to the Pin no. A7 of port 2.Both Pin no. 2/A7 (D-) and pin no. 3/A6 (D+) are used as a differential data pin in each port. Data is sent from and received from these port when used in USB 2.0 mode (in reverse compatibility mode with previous generation USB host)
• Pin 7 is connected as a Drain/Shell.
• Pin no. 5 (SSRX-) from port 1 is connected to Pin no. A3 (TX1-) of port 2, Pin no. 5 (SSRX+) from port 1 is connected to Pin no. A3 (TX1+) of port 2.
• SSTX are bidirectional data SuperSpeed Transmitter ends.
• Please note that SSRXp1 can be written as SSRX1+, also SSRXn1 can be written as SSRX1-
• Pin no. 8 (SSRX-) from port 1 is connected to Pin no. B10 (RX1-) of port 2, Pin no. 9 (SSRX+) from port 1 is connected to Pin no. B11 (RX1+) of port 2.
• SSRX are bidirectional data SuperSpeed Transmitter ends.
• Please note that SSTXp1 can be written as SSTX1+, also SSTXn1 can be written as SSTX1-

Also check USB OTG wiring diagram.

USB type C terminologies and parameters for technical/ manufacturing use:

• Pull-up resistor (Rp): The pin A5 /(CC) is connected in series with resistor Rp= 56kΩ with the +5v (VBUS) at USB C plug terminal. The value of Rp determines the current sourcing capability of the Type-C ports for which it is designed.
• SHELL/ SHIELD/ BRAID: For a good quality USB cable, to avoid crosstalk and RF interference from adjacent data lines, it is recommended to have 360-degree conductive shielding with ground shield termination on both ports.
• The main purpose of shielding is to prevent unwanted RF interference and noise signals.
• In common practice, A6 and A7 are un-shielded pair of wires, (B10+B11) and (A2+A3) are shielded pairs of wires respectively, shield is individually grounded at both end, remaining ground connection should be individual black color conductor. Also check different USB mode here

Certain electronic devices, components, IC’s, sensors or microcontrollers designed to work on 3.3V DC supply as a power source.

While working on some projects with standard power supply (say) 5 volts or higher, some modules/ circuits would require lower 3.3Volts. Here, in this post we will be discussing some of the simplest voltage regulator circuits designed using linear regulator IC LM/ AMS1117, LM3940, etc.

These circuits can also be used to step down or reduce 5V/ 9v available supply potential to 3.3v so as to use it with microcontroller, modules or any IC’s.
A 5v to 3.3v converter circuit can be implemented using various ways like using linear voltage regulator, boost converter/ switching converter, resistor/ voltage divider, zener regulator, etc. You could choose the right circuit or module according to the requirements of the applications.

It is always recommended to use reliable linear power converters like  ASM-LM1117/ LM3940/ XL6009 etc.

5v to 3.3v converter with LM1117/ ASM1117

LM1117 3.3V is a fixed voltage linear regulator IC that reduces and regulates the higher input voltage to a fixed 3.3V DC. It is suitable for low current application as well as for the current up to 800 mA.

IC AMS1117 comes with several variants, hence pick the proper IC. By using this linear voltage regulator circuit, we can convert 5V to 3.3V without taking up a lot of circuit space.

IC LM1117 3.3 v circuit is implemented as shown in the schematic diagram below:

Components required:

• 1X 10uF capacitor
• 1X 22uF capacitor
• IC LM1117T- 3.3v or ASM1117- 3.3V
• Heat-sink, wires, and connectors.

Features:

• This IC has built-in features like current limiting and thermal protection, and thermal shutdown.
• Low dropout voltage regulation with a dropout of 1.2v
• Delivers output current upto 800mA
• Output voltage accuracy within ±1%
• Fewer external components

LM1117 is an IC of LM1117x series; the different ICs in this series are made for different output voltages. A common use for these ICs are in regulated power supply circuits.

Click here to check 9v to 5v converter circuit

ASM1117 is an alternative to LM1117, they could be used as a replacement for each other.

An adjustable version of the LM1117 is also available, this version can be set to output voltages ranging from 1.25 to 13.8 V using only two external resistors. Additionally, it is available in five variations of fixed voltage, 1.8 V, 2.5 V, 3.3 V, and 5 V.

For pin-out diagram of LM1117 3.3 V circuit, the Pin 3 is the input pin, while Pin 1 is the ground pin and Pin 2 is the output pin.

Applications:
AC drive power stage module, Industrial AC/DC applications, Ultrasound scanners, servo drive control modules.

(video for reference only, you can replace capacitor value according to applications and availability)

(Scroll down for more detailed information on this module IC, check the datasheet at the end of the page)

Check simple 5V to 12V converter circuit

LM3940 5v to 3.3v converter circuit:

The LM3940 is a 1 ampere low-dropout regulator designed to provide a 3.3V regulated output from a 5V supply. It is useful for medium current range of up to 1 Ampere.

The LM3940 is ideally suitable for systems where both 5V and 3.3V logics are required. As the LM3940 has a minimum 1.2V dropout, it is able to maintain 3.3V regulated output with input voltage as low as 4.5 V.
Due to its TO-220 package, the LM3940 is capable of delivering 1 A of load current without the need for additional heatsink.

Components required:

• 5V power source
• 10uF capacitor
• 33uF capacitor
• IC LM3904- 3.3 V

Features:

• Wide input range of 4.5V to 5.5V
• Specified 1A output current
• Short circuit protection
• Built-in over-heat protection

Pin 3 is the output pin. Pin 1 is the input pin. Pin 2 is the ground pin.  The output voltage at pin no. 3 may vary between 3.20 to 3.40 volts. The typical output will be 3.3 volts when junction temperature Tj=25℃.
For pinout diagram and detail technical information on this IC  check datasheet at the end of the page.

Application:
Motherboards of computers/ laptop, logic systems, power supply to IC’s, modules and peripherals.

You might be interested in 3.7v to 5v boost converter circuit

5v to 3.3 v dc dc boost converter using Xl6009:

Using the dc dc boost converter module with IC XL6009, you can achieve 3.3V stable DC voltage output at the input voltage level of 5.0V. It incorporates an N-channel power Mosfet and oscillator, and its current mode architecture provides stable operation across a wide input voltage range.

Components required:
Ic XL6009
Inductor L≥33uH
Switching diode (Schottky diode) D1=SS34
2 ✕ Capacitor C≥22uF
R5 = 1.65 kΩ
R6 = 1 kΩ

For required output, this programmable IC needs to be configured by changing the feedback voltage(FB), which is done by changing the value of R5 And R6.

The value of R5 and R6 can be determined using this formula:
Vo=1.25(1+R5/R6)
Where 1.25= Vref (reference voltage of the IC)
Here, we need Vo = 3.3V, then assume the value of either R5 or R6 then find for the other.
E.g. choose R6=1.0kΩ, put the value in the formula, we get R3=1.65kΩ. Hence, the values.

Contains a thermal shutdown feature, preventing the module from overheating in the event of a circuit failure. Operating at a frequency range of 400-480KHz, this boost converter typically delivers an output efficiency of 94%.

Features:

• Wide input voltage ranges from 5V to 32V
• Ripple/ Voltage regulation: ± 0.5%.
• Typical conversion efficiency: ~94%.
• Refer to the datasheet/ module specification for precise technical parameters.

Application:
High efficiency DC to DC voltage conversion, electronic device applications, etc.

5v to 3.3v converter using zener diode:

The circuit shown below zener voltage regulator schematic, it is useful for medium current drawing circuit e.g.  LED indicators, transistor switches, Arduino modules etc

Use this 5v to 3.3v zener regulator (DC to DC) circuit to get required 3.3 volts. You will get approx 3.3V at the output.

Components required:
20-ohm resistor (≥10 ohms), 3.3V zener diode (5W), some wires or connectors.

Important:
The load must be connected to the output end to prevent zener from getting damaged. A series resistor 20 ohms is a current limiting resistor and when high current is drawn, to avoid damage a 5-watt resistor should be used.

Working:
It is the most common circuit of zener diode in voltage regulator configuration. For detailed calculation and formula, click here > zener regulator part of this post.

5v to 3.3 v resistor circuit as a voltage divider:

Voltage divider circuit 5v to 3.3 v resistor has somewhat limited applications. The schematic shown below is the circuit for low current applications, or to take reference voltage in a comparator circuit or low current drawing circuit of an LED (output current also depends on load resistance).

You can drive a LED in across the o/p of  R2 resistor if you are using a 5 volt power supply at the input end.

Components required:
590-ohm resistor and 1.15k resistor

It is just a voltage-divider circuit. You can get the output according to your need with this formula:

Whereas, Vo is the o/p voltage. Vin is the input voltage. Choose either R1 or R2 as your resistor value and solve for other. Then select the nearest standard value of the resistor.

Datasheets of Boost converter IC:

Datasheet and pinout diagram of IC LM1117 3.3 v circuit

Datasheet and pinout diagram of IC LM3940 3.3 v circuit

(all the IC’s and datasheet mentioned here are strictly belongs to respective semiconductor company)

Conclusion:

The consolidated effort has been taken to conclude the best possible simplified information on these linear voltage converter/ boost converter ICs, the ultimate aim of this article is to put forward how to use popular predesigned ICs/ modules available in the market.

Looking for the 3.7v to 12v boost converter circuit? In this article, we’ll discuss a few of these, using a high-efficiency DC to DC step-up converter IC. These step-up DC to DC boost converters are generally available as a module on sale online.
There are many to choose from, for this post we will focus on the boost converter module based on the popular DC- DC switching regulator IC.

It is suggested to buy a DC to DC Step-Up module for just a power supply needed in a project around a microcontroller or to power the peripherals. The reason for this is that some modules have adjustable output voltages that could be useful in various situations. Also, it is designed in a compact space.

The information on this page would be very useful if you are planning a project involving buck converters/ power supply circuits.

Keep reading, as in this post you’ll walk through the introduction and circuitry of DC to DC Boost Converter & Modules, also covering the datasheet, pinout, features, and intended applications.

Let’s get started.
So we can implement 3.7v to 12v boost converter circuit using :LM2577, MT3608, XL6009, and so on

3.7v to 12v Boost Converter circuit using IC LM2577

With the voltage boost converter module using IC Lm2577-ADJ, you can achieve 12V stable DC voltage output at a wide range of input voltage levels as low as 3V and up to 40V. The LM2577 is designed with an 3.0A NPN switch, also combined with a protection circuit consisting of current limiting and thermal limiting.

Consequently, this programmable IC must be configured by adjusting the feedback voltage, which is determined by changing R5 and R6. In order to provide the feedback voltage, a voltage divider circuit is incorporated. These DC-DC boost converter modules operate at the frequency 48-53KHz.

Above 3.7v to 12v boost converter circuit is implemented using variable output IC Lm2577-ADJ.
This can be implemented using a fixed output 12v switching IC Lm2677T-12 which comes under the lm2577 series step-up voltage regulator.

Components required:
IC Lm2577-ADJ
Inductor L3≥100uH
Switching diode (Schottky diode) D3=IN5821
Capacitor: Cout≥680uF, Cin=0.1uF, Comp=0.33uF, R7=2.2kΩ
R6 = 2.0kΩ
R5 = 17.4kΩ

The value of R5 and R6 can be determined using this formula:
Vo=1.23(1+R5/R6)
Where 1.23= Vref (reference voltage of the IC)

Here, we need Vo = 12V, then assume the value of either R5 or R6 then find for the other.
Eg. choose R6=2.0kΩ, put the value in the formula, we get R5=17.4kΩ. Hence, the values.

There could be a difference between ‘Operating Ratings’  and ‘Absolute maximum Ratings’ of the boost up converter. They could also operate at absolute ratings, but it is recommended to run them under maximum operating ratings. And for that you might need to refer to the datasheets.

Check 5v to 12v dc dc boost converter schematic circuit here

Features:

• Requires few external components.
• Soft start function (low initial current to avoid current ripple/ spike, helps reduce high in-rush current during start-up).
• Capable of handling maximum output current up to 3.0 Amp and maximum output voltage of 60V .
• Internal oscillator having 52KHz frequency.
• Conversion efficiency up to 92%, (higher the output voltage higher is the efficiency).
• Refer to the datasheet/ module specification for more technical parameters.

Application:
Simple boost regulator, fly-back and forward regulators, multiple output regulators.

You can also use this circuit as 5v to 12v converter, the reason behind this is that according to the datasheet this IC can convert any voltage above 3v to required voltage.

You can check 3.7v to 5v boost converter circuit here.

3.7v to 12v Step up Converter using IC MT3608

Components required:
IC MT3608 series
Inductor L≥22uH
Switching diode/ (Schottky diode); D=SS34
2 ✕ Capacitor C≥22uF
R1 = 21kΩ
R2 = 1.1kΩ

The value of R1 and R2 can be determined using this formula:
Vo=0.6(1+R1/R2)
Where 0.6= Vref (internal reference voltage of the IC)

Here, we need Vo = 12V, so let’s take either R1 or R2 as our starting point and find for the other.
Eg. choose R2=1.1kΩ, put the value in the formula, we get R1=21kΩ. Hence, the values.

With the voltage boost converter module with IC MT3608, you can achieve 12V stable DC voltage output at a wide range of input voltage above 2.0V. Under-voltage lockout occurs if the input voltage drops below 1.98V.
This IC is designed to work with small and lightweight external components, serve to be installed in small & compact spaces. Automatically detect light loads, continue to operate without shutting off.

It depends on the input voltage and current, the amount of the maximum stable output current is produced. For an input of 3.7v or more, the output of this IC’s can deliver a maximum of 2.0A. These DC-DC boost converter modules operate at the frequency ≥1.2MHz, the typical output is 93% efficient.

Features:

• Thermal overload protection in case of output overload.
• Input voltage could be between from 2.0 to 24V
• Maximum output current up to 2.0 Amps.
  % and at optimal performance)
• The typical switching frequency is ~1.2MHz.
• Typical conversion efficiency: up to 93%

Applications:
Battery-powered portable equipment, set-top box, LCD driver supply, Wi-Fi Router.

(Scroll down for more detailed information on this module IC, check the datasheet of IC MT3608 at the end of the page)

Important note: Mentioned circuit designs are implemented using ADJ versions of voltage converter ICs, keep in this thought that fixed output voltage version of the respective ICs are also available. Make sure to use it accordingly. Check datasheet for part number of fixed version and adj version of all boost converter ICs.

3.7v to 12v DC- DC boost Converter using IC XL6009

Using the voltage boost converter module with IC XL6009, you can achieve 12V stable DC voltage output at a wide range of input voltage levels between 3V and 32V. The XL6009 is designed with an N-channel power MOSFET and oscillator, and its current mode architecture provides stable operation across a wide input as well output voltage range.

This programmable IC thus needs to be configured by changing the feedback voltage, which is done by changing the value of R3 And R4. For obtaining the required feedback voltage, a voltage divider circuit is used.

Components required:
Inductor L≥33uH
Switching diode (Schottky diode) D1=SS34
2 ✕ Capacitor C≥22uF
R3 = 8.6kΩ
R4 = 1kΩ

The value of R3 and R4 can be determined using this formula:
Vo=1.25(1+R3/R4)
Where 1.25= Vref (reference voltage of the IC XL6009)

Here, we need Vo = 12V, then assume the value of either R3 or R4 then find for the other.
Eg. choose R4=1.0kΩ, put the value in the formula, we get R3=8.6kΩ. Hence, the values.

Equipped with thermal shut function, to prevent overheating of the module in case of circuit fault. The output current of this IC can be tested for different voltages according to the given input voltage before application. Typical output efficiency of this DC-DC boost converter is 94% while operating at the frequency range of 400-480KHz.

Features:

• Wide input voltage ranges from 3V to 32V.(optimum operating voltage is 5V – 32V).
• It is able to deliver a maximum output current of 4.0 Amp.
• Typical switching frequency 400KHz.
• Ripple/ Voltage regulation: ± 0.5%.
• Typical conversion efficiency: ~94%.
• Refer to the data sheet/ module specification for precise technical parameters.

Applications:
High efficiency DC-DC voltage conversion, portable electronic equipment applications, etc.

Data-sheets of Boost converter IC

Datasheet of IC LM2577

(all the IC’s and data sheet mentioned here belongs to respective semiconductor company)

Conclusion:

The consolidated effort has been taken to conclude the best possible simplified information on these modules and ICs, the ultimate aim of this article is to convey how to use DC- DC Step Up converter modules built with popular pre-designed ICs available in the market. Use your own  experience/ observations before reaching a final conclusion.

Looking for the 3.7v to 5v boost converter circuit diagram? So here we will be discussing some of them, using high-efficiency DC to DC switching regulator IC. These step-up DC to DC boost converters are usually ready-made modules available on sale online.
There are many to choose from, but this post will take you through the boost converter module designed with the popular switching regulator ICs.

It is suggested to just purchase a DC to DC Step-up module for just a power supply needed in a project around a micro-controller or to drive the peripherals. This is because some modules come with an adjustable output voltage that would come in handy if required in different scenarios. Also, it is designed in a compact space.

If you are someone making a project that is around a buck converter/ power supply circuit, then information on this page would be very useful for you.

Keep reading, as in this post you’ll walk through the introduction and circuitry of DC to DC Boost Converter & Power Modules, also covering the data sheet, pin-out, features, and intended applications.

We’ll get right into it.
So we can implement 3.7v to 5v using : IC MC2108Axx, MT3608, XL6009, and many more. All the ICs are having PWM, switching and voltage regulating capabilities. Boost buck converter can also be called constant current drivers.

3.7V to 5V Boost Converter using IC MC 2108Axx

With the voltage boost converter module with IC series ME2108Axxx, you can achieve 5V stable DC voltage output at a wide range of input voltage levels between 0.9V and 5V. This small circuit boosts the voltage level and provides the amplified, stabilized 5V output. This IC is designed such that it requires minimal external components.

The amount of current required to produce a stable output varies, depending on the input voltage range. For an input of 3v or more, the output of this IC is limited to a maximum of 480mA at 5V. These DC-DC boost converter modules operate at the frequency ~160KHz, the typical output is 85% efficient.

The below image shows a schematic of the simplest 3.7 to 5v boost converter using ME21008A.

Components required:

Inductor L≥22uH
Switching diode (Schottky diode) I=SS14
IC ME2108A series
Capacitor C≥22uF

Features:

• Small in size and lightweight
• Wide input voltage range from 0.9 to 3.7V
• Maximum output current: 480 mA at 5V (at input voltage more than 3.5V)
• The input of 3V gives 5V at ~400 mA.
• Typical conversion efficiency: up to 85%
• Ripple/ Voltage regulation: ± 2.5%

Application:
Battery powered devices/ portable equipment, low current circuits, any module that needs higher voltage from lithium 3.7v volt battery, etc

If you want to use 18650 lithium-ion battery or any 3.7v battery as a 5v battery supply then, check power bank circuit, this might help.

3.7V to 5V DC-DC Step up Converter circuit using IC MT3608

With the voltage boost converter module with IC MT3608, you can achieve 5V stable DC voltage output at a wide range of input voltage above 2.0V. If voltage drops below 1.98V the IC will undergo an ‘under voltage lockout’.
This IC is designed to work with small and lightweight external components so as to be installed in small & compact spaces.

The below image shows a schematic of a 3.7 to 5v boost converter using IC MT3608:

The amount of current required to produce a stable output varies, depending on the input voltage range. For an input of 3.7v or more, the output of this IC’s can deliver a maximum of a 2000mA. (for that, input supply must be capable of delivering higher current). These DC-DC boost converter modules operate at the frequency ≥1.2MHz, the typical output is 93% efficient.

Components required:
Inductor L≥22uH
Switching diode (Schottky diode) I=SS34
IC MT3608 series
2 ✕ Capacitor C≥22uF
R1 = 110kΩ
R2 = 15kΩ

The value of R1 and R2 can be determined using this formula:

Vo=0.6(1+R1/R2)
Where 0.6= Vref (internal reference voltage of the IC)

Here, we need Vo = 5V, then assume the value of either R1 or R2 then find for the other.
E.g. choose R2=15kΩ, put the value in the formula, we get R1=110kΩ. Hence, the values.

Features:

• Thermal overload protection in case of output overload.
• Wide input voltage range from 2.0 to 24V.
• Maximum output current up to 2 Amps at 5V
  (for higher η% and optimal performance, input should be voltage more than 3.0V)
• Typical switching frequency ~1.2MHz.
• Typical conversion efficiency: up to 93%

Application:
Battery-powered equipment, set-top box, LED bias supply, DSL, Cable Modem and Router, networking cards powered from PCI or PCI express slots.

(Scroll down for more detailed information on this IC module, check the data sheet at the end of the page)

Also check, 3.7v to 12V boost converter schematic

You can also implement 3.7v to 5v using IC LM2596 dc to dc boost converter as this power converter IC is also popularly used everywhere (LM2596 have similar features as that of IC XL6009).

Important note: Mentioned circuit designs are implemented using ADJ versions of voltage converter ICs, keep in this thought that fixed output voltage version of the respective ICs are also available. Make sure to use it accordingly. Check datasheet for part number of fixed version and adj version of all boost converter ICs.

DC-DC Buck Converter circuit using IC XL6009

With the voltage boost converter module/ pwm switching regulator with IC XL6009,
You can achieve 5V stable DC voltage output at a wide range of input voltage levels between 3V and 32V. The XL6009 is designed with an N-channel power Mosfet and oscillator, also its current mode architecture results in stable operation over a wide input and output voltages.

This programmable IC thus needs to be configured by adjusting the feedback voltage, which is fixed by changing the value of R1 And R2. There is a need to use a voltage divider circuit for the required feedback voltage.

The below image shows a schematic of  a 3.7 to 5v boost converter using IC XL6009:

The amount of stable output current required depends on the input voltage and current capacity. The output current of this IC can be tested for different voltages according to the required input voltage. These DC-DC boost converter modules operate at the frequency 400-480KHz, the typical output is 94% efficient.

Components required:
Inductor L≥33uH
Switching diode (Schottky diode) D1=SS34
2 ✕ Capacitor C≥22uF
R3 = 3kΩ
R4 = 1kΩ

The value of R1 and R2 can be determined using this formula:

Vo=1.25(1+R3/R4)
Where, 1.25= Vref (reference voltage of the IC)

Here, we need Vo = 5V, then assume the value of either R3 or R4 then find for the other.
Eg. choose R4=1kΩ, put the value in the formula, we get R3=3kΩ. Hence the values.

Features:

• Compact in size.
• Wide input voltage ranges from 3V to 32V.(optimum operating voltage is 5V – 32V).
• Capable of delivering maximum input current of 4 Amp.
• Typical switching frequency 400KHz.
• Ripple/ Voltage regulation : ± 0.5%.
• Typical conversion efficiency: ~94%.
• Refer to the datasheet/ module specification for more technical parameters.

Application:
High efficiency DC-DC voltage conversion, micro-controller peripheral supply, etc.

Datasheets of Boost converter IC

links

IC ME21008A datasheet
IC MT3608 datasheet
IC XL6009 datasheet

(all the ICs and datasheet mentioned here belongs to respective semiconductor company)

Conclusion:

There are several more ways to execute a 3.7v to 5v boost converter circuit diagram through methods that are not mentioned above. More circuit could be updated in this using different ICs in due time. The consolidated effort has been taken to conclude the best possible simplified information on these modules and IC’s, the ultimate aim of this article is to convey how to use Step-up modules built with popular per-designed ICs available in the market. Use your own consent/ assent/ experience/ observations before reaching a final conclusion.

USB Type-C is a new replacement for the earlier micro USB connector system.  Almost all the new budget smartphones that are being released every few weeks come with micro USB C due to their gaining popularity across the smartphone and gadgets section. The major advantage of USB C over the previous micro USB is its port compatibility on either sides of device i.e it can be inserted upside down or vice versa without any technical disadvantage.

In this article, we will discuss the most important features of the USB-C other than its ability to flip for which it is most popular. The following information will be helpful to electronics hobbyists and to anyone who is trying to learn the different types of Universal Serial Bus or for any sort of USB C wiring repair work.

Before getting into the USB C wiring diagram, you can check the detail on the USB C pinout and explanation of what each pin does. If you want to know the usb which is used to be one of the most commonly used usb standards then check the older micro USB pin-out and wiring diagram.

USB Type C wiring diagram PD (Power Delivery) & USB 2.0 Data

There can be three possible ways of USB C wiring:

USB C charger cable wiring diagram:
The first one is USB type C to USB A male that comes with a mobile phone charger in the box. This cable is capable of transferring data from/ to personal computers as well as charging the smartphone. In this, there you could find two versions viz., USB 2.0 & USB 3.0. Out of which USB 3.o has more connecting wires and supports high data transferring speed than that of USB 2.0.

USB C OTG wiring diagram:
The second one is USB type C to USB A female which is also known as USB C OTG cable. USB OTG cable comes in handy when transferring files and photos from a USB pen drive to a mobile phone or vice versa without connecting either a mobile phone or external storage device to a Laptop or PC. Also, it supports pointing device like mouse and full external keyboard for typing. USB C OTG also comes with this USB2.0 and USB3.0 formats.

USB C to USB C wiring diagram: These cables support high-speed data transfer up to 10Gbps, it is incorporated with the USB 3.1 version. It has the USB C port on both the end, which makes the connection very easy as you won’t need to use your brain to check port orientation on either side.

USB type C wiring diagram with male USB 2.0 type A:

The cable shown in above image is typically found used in mobile chargers for charging mobile devices and as a USB data cable to connect mobile devices for transferring files and images between personal computers and phones.
Under the latest development they are called Power Delivery (PD) cable. PD cables are only designed to charger the mobile and laptop devices. Only PD supported cables doesn’t support data transfer. But most of the cables supports both power delivery and USB 2.0 470 Mbps data transfer rate. Small cables that comes with bluetooth neckband/ headphones are made for charging only that too for lower current application, and thus they are not reliable for fast mobile phone charging.

The table shows the connection between pin numbers on both the end and their function with their character symbol:

• According to the USB standard power supply is +5V. (but note that the capacity of the maximum output current supply is different for different USB versions).
• Pin no.1 from USB type A male is connected to the Pin no A4, A9, B4, B9, of micro USB C. This pin is named, the power supply (+VDD/ VBUS) through that pin the power is supplied to the device or any equipment which is also an indicator of handshake signal, that convey the system that “the device is connected”.
• Pin no.4 from USB type A male is connected to the Pin no A1, A12, B1, B12, of micro USB C. This pin named the ground supply (GND) through that pin ground signal is connected.
• Pin no.3 from USB type A male is connected to the Pin no. A6 of micro USB C.
  Pin no.2 from USB type A male is connected to the Pin no. A7 of micro USB C. Both Pin no. 2/A7 (D-) and pin no. 3/A6 (D+) are used as a differential data pin in each port. Data is sent from and received from the differential data pins in a specific format, called USB protocol.
• Whereas, the color code for the wire used in the USB C cable is Red, White, Green, Grey/Black for pin numbers 1, 2, 3 & 4 respectively.
• Note: In some cables, it could be found that Pin no. A5 is not connected to anything at the USB C side. As, low-end manufacturers avoid it to reduce time and money to some extent. But good quality expensive cable has A5 connected.
  It is suggested to connect A5 at USB port C side according to recommendations.

The USB C wiring diagram below shows the “ USB type C to micro USB 2.0 type cable assembly” diagram:

• USB charging cable and USB OTG cable have the same cable assembly diagram apart from their ports. (USB 2.0 type A male/ female have same wiring only difference is port).
• This means, out of two ends, one end is common viz, USB C PORT, and another end could be either a USB A male or USB A female. This serves two different purposes USB charging/data cable and USB OTG cable respectively.

• *Important: Note that pin A5 /(CC) shall be connected in series with resistor Rp= 5.1kΩ/ 5.3kΩ/ 5.6kΩ with the +5v supply (VBUS). The value of Rp determines the current capability of the cable/ device for which it is designed.
• For a good quality USB cable, it is recommended to have internal shielding on all wires inside, with 360-degree shield termination on both ends.
• This shielding is often named SHELL/ SHIELD/ BRAID. They are conducting in nature and grounded at ends.
• The purpose of shielding is to prevent unwanted RF interference and noise signals.

USB C to USB A 3.0/3.1/3.2  type cable wiring diagram:

Click here to check USB C 3 cable pinout and wiring