Regulator converts harvested power as low as 10uW

1st April 2014
Posted By : Staff Reporter

An ultra-low-power boost regulator for photovoltaic and thermoelectric energy harvesting systems has been unveiled by Analog Devices. The ADP5090 boost regulator delivers efficient conversion of harvested power (as low as 10uW) with sub-uW operational losses that stores the maximum amount of energy for future operation.

Key features include:
  • Optimizes efficient conversion of harvested limited power down to 10 µW – 1-mW range with best in class sub-µW operation losses
  • Programmable maximum power point tracking with open circuit voltage sensing ensures most energy extracted from harvester
  • 250-nA quiescent current in deep-sleep mode prolongs operation time with minimized loss of ambient energy
  • Integrated charge pump circuitry enables cold start at 380-mV input voltage with no energy on system node

Harnessing “indoor” ambient light as a viable power source has become a growing trend in wireless sensor network applications worldwide.

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