ADP2140 Overview
The ADP2140 includes a high efficiency, low quiescent 600 mA stepdown dc-to-dc converter and a 300 mA LDO packaged in a small 10-lead 3 mm × 3 mm LFCSP. The total solution requires only four tiny external ponents. The buck regulator uses a proprietary high speed currentmode, constant frequency, pulse-width modulation (PWM) control scheme for excellent stability and transient response.