BQ25570 Power Boost Converter Solar Energy Collector Converter Energy Harvester Boost Charge Buck Converter

BQ25570 Power Boost Converter Solar Energy Collector Converter Energy Harvester Boost Charge Buck Converter

description
BQ25570 Energy Harvester Boost Charger & Buck Converter Module

The BQ25570 Energy Harvester Module is a highly efficient, ultra-low-power power management module designed to collect and manage small amounts of energy from low-voltage sources such as solar panels, thermoelectric generators (TEGs), and piezoelectric energy harvesters. It combines a boost converter/charger with a low-power buck converter, making it suitable for energy-harvesting and low-power electronic applications.

The module is based on the Texas Instruments BQ25570 energy-harvesting power management IC, which is specifically designed for applications requiring microwatt- to milliwatt-level power. It can efficiently extract energy from high-impedance sources while helping prevent the input source from collapsing.

Key Features
BQ25570-based ultra-low-power energy harvesting module
Supports energy harvesting from solar panels, TEGs, and piezoelectric generators
Boost converter for increasing low input voltages
Integrated battery charging and protection functions
Programmable Maximum Power Point Tracking (MPPT)
Integrated low-power buck converter
Suitable for rechargeable Li-ion/Li-Po batteries, supercapacitors, and capacitors
Compact module design for easy integration into projects
Designed for low-power and remote electronic applications
Input voltage: DC 0.1V–5.1V (module specification)
Output voltage: 2V–5.5V (module specification)
Applications

This module is ideal for solar-powered IoT devices, wireless sensor nodes, remote monitoring systems, environmental sensors, low-power embedded projects, energy-harvesting experiments, and battery-maintenance applications. It is particularly suitable where only a small amount of harvested energy is available and efficient power management is required.

Important Note

The BQ25570 is intended for low-power energy-harvesting applications, rather than high-current or high-power loads. The actual available output power depends on the connected energy source and its available input power. The BQ25570 IC supports continuous energy harvesting from input sources as low as 100 mV after startup, with cold-start requirements specified separately by the IC manufacturer.