ADP2109 Datasheet - Analog Devices

ADP2109 Step-Down Converter

The ADP2109 is a high efficiency, low quiescent current stepdown dc-to-dc converter with an internal discharge switch that allows automatic discharge of the output capacitor in an ultrasmall 5-ball WLCSP package. The total solution requires only three tiny external components. It uses a proprietary .

ADP2109 Features

* Peak efficiency: 95% Discharge switch function Fixed frequency operation: 3 MHz Typical quiescent current: 18 μA Maximum load current: 600 mA Input voltage: 2.3 V to 5.5 V Uses tiny multilayer inductors and capacitors Current mode architecture for fast load and line transient response 100% duty-cycl

ADP2109_AnalogDevices.pdf