Description
The ADP2118 is a low quiescent current, synchronous, step-down dc-to-dc regulator in a compact 4mm × 4mm LFCSP package.
It uses a current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response.
Features
- 3 A continuous output current 75 mΩ and 40 mΩ integrated FET ±1.5% output accuracy Input voltage range from 2.3 V to 5.5 V Output voltage from 0.6 V to VIN 600 kHz or 1.2 MHz fixed switching frequency Synchronizable between 600 kHz and 1.4 MHz Selectable synchronize phase shift: 0o or 180o Selectable PWM or PFM mode operation Current mode architecture Precision enable input Power good output Voltage tracking input Integrated soft start Internal compensation Starts up into a precharged output UVL.