Ultra Low Voltage Boost Power Management IC

for Solar/Thermal Energy Harvesting Datasheet

Cypress Semiconductor Corporation

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198 Champion Court

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San Jose, CA 95134-1709

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408-943-2600

Document Number: 002-08404 Rev *A

Revised February 4, 2016

MB39C831

Description

The MB39C831 is the high-efficiency synchronous rectification boost DC/DC converter IC which efficiently supplies energy

getting from the solar cell with the single cell or multiple cells, or from the thermoelectric generator (TEG) to the Li-ion battery.

It contains the function to control the DC/DC converter output following the maximum power point of the solar cell (MPPT:

Maximum Power Point Tracking) and the protection function to charge the Li-ion battery safely.

It is possible to start-up from 0.35 V using the low-voltage process and adapts the applications which the single cell solar cell is

treated as the input.

Features

 Operation input voltage range : 0.3V to 4.75V

 Output voltage adjustment range : 3.0V to 5.0V

 Minimum input voltage at start-up : 0.35V



Quiescent Current (No load) : 41 μA

 Input peak current limit : 200 mA

 Built-in MPPT

 Charge voltage to the Li-ion battery/current protection function built in

 Improvement of the efficiency during the low-output power according to the auto PFM/PWM switching mode

Applications

 Solar energy harvesting

 Thermal energy harvesting

 Li-ion battery using the single cell or multiple cells' solar cell/Super Capacitor Charger

 Portable audio players

 Cellular phone

 eBook

 Electronic dictionary

 Wireless remote controllers

 Sensor node

Note: This product supports the web-based design simulation tool, Easy DesignSim.

It can easily select external components and can display useful information.

Please access from http://cypress.transim.com/login.aspx