L4957 Datasheet | STMicroelectronics

® UP TO 4A ULDO LINEAR REGULATOR 1.5V AND 2.5V FIXED OUTPUT VOLTAGE 3V TO 6.5V INPUT VOLTAGE RANGE 200mΩ Rdson TYPICAL @ Tj = 125 °C 0.6V max. DROP-OUT AT 2A EXCELLENT LOAD REGULATION 0.6mA QUIESCENT CURRENT AT ANY LOAD SHORT CIRCUIT PROTECTION WITH FOLDBACK THERMAL SHUTDOWN APPLICATIONS MOTHER BOARDS PROCESSOR I/O & SUPPLIES LOW VOLTAGE MEMORY & CHIP SET SUPPLIES GRAPHIC & SOUND CARDS LOW VOLTAGE LOGIC SUPPLIES POST REGULATOR FOR SMPS DESCRIPTION The L4957 devices are Ultra Low Drop Output linear regulators with an internal N-channel MOS of 200mΩ particulary suitable for low voltage/low dropout applications. Operating with a input voltage from 3V to 6.5V they are capable to...