S-1312 Series www.ablic.com 5.5 V INPUT, 150 mA VOLTAGE REGULATOR ABLIC Inc., 2011-2018 Rev.2.5 00 The S-1312 Series, developed by using the CMOS technology, is a positive voltage regulator IC which has low current consumption, high ripple-rejection and low dropout voltage. Even with low current consumption of 20 A typ., it has high ripple-rejection of 75 dB typ., and a ceramic capacitor of 0.22 F or more can be used as the input and output capacitors. It also has high-accuracy output voltage of 1.0%. Features Output voltage: 1.0 V to 3.5 V, selectable in 0.05 V step Input voltage: 1.5 V to 5.5 V Output voltage accuracy: 1.0% (1.0 V to 1.45 V output product: 15 mV) Dropout voltage: 160 mV typ. (2.8 V output product, I = 100 mA) OUT Current consumption: During operation: 20 A typ., 30 A max. During power-off: 0.1 A typ., 1.0 A max. *1 Output current: Possible to output 150 mA (V V + 1.0 V) IN OUT(S) Input and output capacitors: A ceramic capacitor of 0.22 F or more can be used. Ripple rejection: 75 dB typ. (1.2 V output product, f = 1.0 kHz) 70 dB typ. (2.85 V output product, f = 1.0 kHz) Built-in overcurrent protection circuit: Limits overcurrent of output transistor. Built-in thermal shutdown circuit: Prevents damage caused by heat. Built-in ON / OFF circuit: Ensures long battery life. Discharge shunt functionavailabl /unavailabl is selectable. Pull-down functionavailabl /unavailabl is selectable. Operation temperature range: Ta = 40C to +85C Lead-free (Sn 100%), halogen-free *1. Attention should be paid to the power dissipation of the package when the output current is large. Applications Constant-voltage power supply for portable communication device, digital camera, and digital audio player Constant-voltage power supply for battery-powered device Constant-voltage power supply for home electric appliance Packages SOT-23-5 HSNT-4 (1010) HSNT-4 (0808) 15.5 V INPUT, 150 mA VOLTAGE REGULATOR S-1312 Series Rev.2.5 00 Block Diagrams 1. S-1312 Series A type Function Status *1 ON / OFF logic Active VIN VOUT Discharge shunt Available function Overcurrent Pull-down resistor Available protection circuit Thermal shutdown circuit + ON / OFF ON / OFF circuit Reference voltage circuit *1 VSS *1. Parasitic diode Figure 1 2. S-1312 Series B type Function Status *1 ON / OFF logic Active VIN VOUT Discharge shunt Available function Overcurrent Pull-down resistor Unavailable protection circuit Thermal shutdown circuit + ON / OFF ON / OFF circuit Reference voltage circuit *1 VSS *1. Parasitic diode Figure 2 2