3-MHz buck converter adds 20% run-time to wireless apps

3-MHz buck converter adds 20% run-time to wireless apps

The TPS62730 3-MHz, 100-mA synchronous step-down dc/dc converter integrates a bypass switch and a DCS-control technology to extend battery run-time by 20% in low-power wireless and MSP430 MCU-based applications. The DCS-control regulation topology combines hysteretic and voltage-mode control enabling ac-line and transient-load regulation. The converter has an operating current of 25 µA and supports Bluetooth low-energy systems, metering and building technologies, mobile phones, consumer electronics, medical, and human interface devices.

The buck converter has an input-voltage range from 1.9 to 3.9 V. It achieves 95% power conversion efficiency and has an on-chip shutdown/bypass-mode current of 30-nA. The converter generates

By Paul O’Shea

Texas Instruments , Dallas , TX
Information 800-477-8924
www.ti.com