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BQ25703A Programmable Regulator Module

Buck boost regulator module that supports 3.5V-24V input, charging 1-4 cell batteries, and programmable output from 4.48V to 20.8V

alex-klimajAlex Klimaj
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Regulator programmable power module USB PD 2019hackadayprize

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Power Module

Power Module

This project was created on 05/30/2019 and last updated 7 years ago.

Description

This small module incorporates everything needed for the TI BQ25703A programmable regulator.
This is the same regulator I used in LiPow.

[http://www.ti.com/product/BQ25703A](http://www.ti.com/product/BQ25703A)

### Some key features
- Charge 1 to 4 Cell Batteries From Wide Range of Input Sources
- 3.5V to 24V Input Operating Voltage
- I2C Programmable
- Output 4.48V to 20.8V in OTG Mode Compatible With USB PD Output 1.024V to 19.2V in Battery Charging Mode
- Output Current Limit up to 6.35A
- Thermal Shutdown Input, System, Battery Overvoltage Protection, MOSFET Inductor Overcurrent Protection
- Charge Any Battery Chemistry: Li+, LiFePO4, NiCd, NiMH, Lead Acid
- Currently, I have a driver in LiPow for this regulator. I will be improving on it and making it available

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  • Fully assembled, tested, and up for sale!

    Alex Klimaj • 09/17/2019 at 18:36 • 0 comments

    I have finished assembling and testing the modules. They are now for sale on Tindie!

    https://www.tindie.com/products/18093/

  • Progress!

    Alex Klimaj • 09/15/2019 at 20:14 • 0 comments

    This project has been sitting on the shelf for a few months now. PCBs arrived and I got very busy with client work. I've finally got a reprieve and time to build the boards. I started building 10 units today. If all testing goes well, I will put them up for sale on Tindie.

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