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DATA SHEET
bq25570 nano power boost charger and buck converter for energy harvester powered applications
1 Features
- Ultra Low Power DC-DC Boost Charger
- Cold-Start Voltage: VIN ≥ 600 mV
- Continuous Energy Harvesting From VIN as low as 100 mV
- Input Voltage Regulation Prevents Collapsing High Impedance Input Sources
- Full Operating Quiescent Current of 488 nA (typical)
- Ship Mode with < 5 nA From Battery
- Energy Storage
- Energy can be Stored to Re-chargeable Li-ion Batteries, Thin-film Batteries, Super-capacitors, or Conventional Capacitors
- Battery Charging and Protection
- Internally Set Undervoltage Level
- User Programmable Overvoltage Levels
- Battery Good Output Flag
- Programmable Threshold and Hysteresis
- Warn Attached Microcontrollers of Pending Loss of Power
- Can be Used to Enable or Disable System Loads
- Programmable Step Down Regulated Output (Buck)
- High Efficiency up to 93%
- Supports Peak Output Current up to 110 mA (typical)
- Programmable Maximum Power Point Tracking (MPPT)
- Provides Optimal Energy Extraction From a Variety of Energy Harvesters including Solar Panels, Thermal and Piezo Electric Generators