Texas InstrumentsTPS82671EVM-646Energiemanagement, Entwicklungsplatinen und -kits

The TPS82671EVM-646 is a fully assembled and tested platform for evaluating the performance of the TPS82671 high-frequency, synchronous, step-down dc-dc converters optimized for battery-powered portable applications. The TPS82671 and TPS82675 devices are series of high-frequency, synchronous, step-down dc-dc converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS8267x support up to 350-mA load current, and allow the use of low-cost chip inductors and capacitors. With a wide input voltage range of 2.3 V to 5.5 V, the devices support applications powered by lithium-ion (Li-Ion) batteries with extended voltage ranges. Different fixed voltage output versions of the TPS8267x are available from 1.2 V to 2.3 V. These converters operate at a regulated 6-MHz switching frequency and enter a power-save mode operation under light load currents in order to maintain high efficiency over the entire load current range. A PFM mode extends the battery life by reducing the quiescent current to 31 µA (typ) during light load operation.