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Ultra Low Power Management IC, Boost Charger Nanopowered Buck Converter Evaluation Module



  • Programmable input voltage regulation setting via jumpers or resistors
  • Programmable charger output voltage maximum setting via resistors (currently 4.2V)
  • Programmable charger output voltage maximum setting via resistors (currently 1.8V)
  • Programmable power good (BAT_OK) voltage setting via resistors (currently 3.0V)
  • Multiple jumpers, connectors and test points available


Related Terms:

  • Efficiency Nanopower Buck Converter
  • Efficiency Boost Converter Charger
  • Li ion Battery Charger
  • Lithium ion Charger 

Texas Instruments  BQ25570EVM-206

The bq25570 evaluation module (EVM) is a complete module for evaluating the bq25570 energy harvesting charger for storage elements like single-cell Li-Ion/Polymer batteries or super-capacitors. Intended to be powered by high impedance supplies, such as solar panels, thermo-electric generators (TEGs) or piezoelectric generators, the bq25570 regulates its input voltage so that it will not collapse its input source while charging the storage element up to a set voltage point. A power good output indicates when the charger’s storage element reaches a user set voltage level. The bq25570 has an integrated buck regulator that provides a regulated output from the charger output. With minimum changes, the EVM can also be configured as an ultra-low power boost converter, regulating the output voltage from a low impedance source, while simultaneously providing a second output voltage from the buck regulator.