# Battery powered 5V power supply

High-Performance 5.2V Power Management & Li-Ion Charger

- **Seller:** [SOUNDit](https://lectronz.com/stores/soundit), St. Gallen, Switzerland
- **Price:** €8.00 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Power management, Power, USB
- **Country of origin:** Switzerland
- **Product page:** https://lectronz.com/products/battery-powered-5v-power-supply

## Images

![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MTUsInB1ciI6ImJsb2JfaWQifX0=--c55a88cbdbb1ed4e8a4629d06ca7672f01d7ee6c/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00012.jpeg)
![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MTksInB1ciI6ImJsb2JfaWQifX0=--aca74d14ca43560903c0cf3c2f8280c5dfbbc117/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00011.jpeg)
![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MjMsInB1ciI6ImJsb2JfaWQifX0=--647adca9802fdbbe6a77079dce6a4916fb7080cc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00013.jpeg)
![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MjcsInB1ciI6ImJsb2JfaWQifX0=--237f56f65bf31d3028bd4e19f255dfdc4d123038/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/image00014.jpeg)
![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MzEsInB1ciI6ImJsb2JfaWQifX0=--62ef911ce024631e5f993bda3a9f495321ac9a38/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_8246.jpg)
![Battery powered 5V power supply](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjY0MzUsInB1ciI6ImJsb2JfaWQifX0=--0ec6dd6eaf9e4eade6e5fbcb3f3fb6231d836f9a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/IMG_8247.jpg)

## Description

Take total control of your project's power rail with this integrated Li-Ion battery management solution. Built around a precision TI-based architecture, this module combines high-efficiency boosting, dedicated battery protection, and smart switching in a compact form factor.

Whether you are powering a Raspberry Pi, an ESP32 project, or high-draw sensors, this board delivers a rock-solid 5.2V at 1.2A—giving you that extra 200mV "cushion" to compensate for voltage drops across USB cables and connectors.
Core Architecture

**Precision Charging (BQ21040)**: A highly integrated Li-Ion and Li-Pol linear charger. It features a dedicated Charge Status LED to give you immediate visual feedback on your power cycle.

**Active Protection (BQ29700)**: Don't risk your cells. This IC provides essential monitoring for overcurrent and overvoltage, ensuring your battery stays within safe operating parameters during both charge and discharge.

**High-Side Switching (TPS22917)**: This small-footprint load switch allows for efficient power distribution with ultra-low leakage, giving you the ability to manage system power states with minimal overhead.

**Synchronous Boost (TPS61030)**: The heart of the output stage. This high-efficiency converter steps your battery voltage up to a "clean" 5.2V. With a 1.2A output capacity, it’s designed to handle transient spikes and heavy loads without sagging.

**Technical Specifications**
Feature	Specification
Output Voltage	5.2V DC (Compensated for cable loss)
Max Output Current	1.2A
Charger IC	TI BQ21040 (Linear)
Protection IC	TI BQ29700
Boost Converter	TI TPS61030 Synchronous
Switching	TPS22917 High-Side Load Switch
Visual Indicators	On-board Charge Status LED
Why 5.2V?
Standard 5.0V supplies often brown out when a peripheral draws a sudden burst of current or when using long leads. By targeting 5.2V, this supply ensures your MCU or Single Board Computer (SBC) receives a stable voltage within the high end of the TTL logic range, even under load.

PCB measures: 47mm x 38mm

**IMPORTANT**: due to shipping restriction the LiPo battery is not included.