Electronicdesign 6222 0716ti
Electronicdesign 6222 0716ti
Electronicdesign 6222 0716ti
Electronicdesign 6222 0716ti
Electronicdesign 6222 0716ti

Multi-Mode PMU Integrates Three Always-On Power Supply Options

July 19, 2013
Multi-mode PMU manages all power requirements, including load conditions from 100 nA to 500 mA.

The TPS65290 multi-mode PMU from TI features total system quiescent current as low as 100 nA, serving to minimize power consumption in battery-powered, MCU-based water and gas meters and other industrial applications. Operating seamlessly with the company’s ultra-low power MSP430 MCUs, the PMU manages all power requirements in the system, including load conditions from 100 nA to 500 mA. It integrates a 500 mA buck-boost converter, 150 mA LDO, eight power distribution switches, input voltage recovery comparator, state machine, and factory-selectable SPI/I2C interface onto one 20 mm2 power management chip. The device incorporates three factory configurable always-on power supplies for MCU sleep mode and an automatic function for choosing power from either the input voltage or buck-boost converter. The TPS65290 is available now in a 24-pin, 4 x 5 mm VQFN package for a suggested retail price of $1.75 each/1,000. The TPS65290BMEVM and TPS65290LMEVM evaluation modules are available to evaluate designs and speed time to market.

TEXAS INSTRUMENTS INC.

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