The ADP2105/ADP2106/ADP2107 are low quiescent current, synchronous, step-down dc-to-dc converters. It features extremely high efficiency, ultralow quiescent current, 1.2MHz switching frequency, 0.1µA shutdown supply current, maximum load current ADP2105: 1A, ADP2106: 1.5A, ADP2107: 2A, input voltage 2.7V to 5.5V, output voltage 0.8V to VIN, maximum duty cycle 100%, smooth transition to low dropout (LDO) mode, internal synchronous rectifier, small 16-lead 4mm x 4mm LFCSP_VQ package, optimized for small ceramic output capacitors, enable/shutdown logic input, undervoltage lockout, soft start
