Description

1.5 Amp Synchronous, Step-Down DC-to-DC Converter Features: Extremely high 97% efficiency Ultralow quiescent current: 20 μA 1.2 MHz switching frequency 0.1 μA shutdown supply current Maximum load current: 1.5 A Input voltage: 2.7 V to 5.5 V Output voltage: 0.8 V to VIN Maximum duty cycle: 100% Smoothly transitions into low dropout (LDO) mode Internal synchronous rectifier Small 16-lead 4 mm × 4 mm LFCSP package Optimized for small ceramic output capacitors Enable/shutdown logic input Undervoltage lockout Soft start Supported by ADIsimPower™ design tool