S-T111

Rev.2.1_00 HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series The S-T111 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, and low current consumption developed based on CMOS technology. A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a builtin overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional CMOS process, a larger variety of capacitors are available, including small ceramic capacitors. A small SOT-23-5 package realizes highdensity mounting. „ Features 1.5 V to 5.5 V, selectable in 0.1 V steps. ±1.0% 190 mV typ. (3.0 V output product, IOUT = 100 mA) During operation: 50 μA typ., 90 μA max. During shutdown: 0.1 μA typ., 1.0 μA max. High peak current capability: 150 mA output is possible (at VIN ≥ VOUT(S) + 1.0 V)*1 Ensures long battery life. Built-in ON/OFF circuit: Low ESR capacitor can be used: A ceramic capacitor of 0.1 μF or more can be used for the output capacitor. 80 dB typ. (at 1.0 kHz) High ripple rejection: Overcurrent of output transistor can be restricted. Built-in overcurrent protector: SOT-23-5 Small package: www.DataSheet4U.com Lead-free products *1. Attention should be paid to the power dissipation of the package when the output current is large. Output vo...