bq25504 Ultra-Low Power Boost Converter

By Texas Instruments 107

bq25504 Ultra-Low Power Boost Converter

Texas Instruments' bq25504 is the first of a new family of intelligent integrated energy harvesting nano-power management solutions that are well-suited for meeting the special needs of ultra-low-power applications. The product is specifically designed to efficiently acquire and manage the µW to mW of power generated from a variety of DC sources such as photovoltaic or thermal electric generators. The bq25504 is the first device of its kind to implement a highly efficient boost converter/charger targeted toward products and systems including wireless sensor networks (WSN) which have stringent power and operational demands. The design of the bq25504 starts with a DC/DC boost converter/charger that requires only microwatts of power to begin operating.


  • Ultra-low-power with high-efficiency DC/DC boost converter/charger
  • Programmable dynamic maximum power point tracking (MPPT)
  • Energy storage
  • Battery charging and protection
  • Battery status output
  • Energy harvesting
  • Solar charger
  • Thermal electric generator (TEG) harvesting
  • Wireless sensor networks (WSN)
  • Industrial monitoring
Evaluation Module Description
  • Ultra-low-power boost converter/charger with battery management for energy harvesting applications
  • Resistor-programmable settings for under voltage, over voltage providing flexible battery management; POTs included for fine-tuning the settings (not populated)
  • Programmable push-pull output indicator for battery status (VBAT_OK)
  • Test points for key signals available for testing purpose - easy probe hook-up
  • Jumpers available - easy to change settings