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Ultra-Low-Power Boost Regulator for Energy Harvesting Systems

Published: Apr 09,2014

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Analog Devices, Inc. introduced the ultra-low-power boost regulator for photovoltaic and thermoelectric energy harvesting systems. The ADP5090 ultra-low-power boost regulator represents a significant leap forward in energy harvesting technology.

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By delivering efficient conversion of the harvested power (as low as 10 uW), ADP5090 with sub-uW operational losses that stores the maximum amount of energy for future operation.

Features:

- Ultra-low quiescent current hysteretic boost regulator for best ultra-light load efficiency

- Iq (sys) < 350 nA when CBP voltage > MINOP voltage

- Iq (sys) < 250 nA when CBP voltage < MINOP voltage

- Input voltage operation range from 100 mV (minimum) to 3.3 V (maximum)

- Cold start from 380 mV (typical) with charge pump

- Programmable MPPT ratio for PV or TEG energy sources with open voltage sensing(OCV)

- Programmable shutdown point on MINOP pin based on VIN OCV level

- Programmable voltage monitor (2 V to 5.3 V) to support charging different storage

- Optional power path management if a backup primary cell battery is connected to BACK_UP

- See data sheet for additional features

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