One IC Generates Three Sub-2V Power Rails from a Li-Ion Cell

摘要

The LTC3446 packs an efficient 1A buck regulator and -two 300mA VLDO regulators in a tiny 3mm x 4mm DFN package. With an output voltage range extending down to 0.4V for the VLDO regulators and 0.8V for the buck, and an input voltage range covering the single-cell Li-Ion range up to 5.5V, the LTC3446 is ideal for powering today's multi-voltage, sub-2V systems.