S-13R1 Series 5.5 V INPUT, 150 mA VOLTAGE REGULATOR www.ablic.com WITH REVERSE CURRENT PROTECTION ABLIC Inc., 2012-2018 Rev.1.3 00 The S-13R1 Series, developed by using the CMOS technology, is a positive voltage regulator IC of 150 mA output current, which has low dropout voltage, high-accuracy output voltage and low current consumption. Even with low current consumption of 5 A typ., it has high ripple-rejection of 70 dB typ., and a ceramic capacitor of 1.0 F or more can be used as the input and output capacitors. The S-13R1 Series includes an overcurrent protection circuit that prevents the load current from exceeding the current capacity of the output transistor and a thermal shutdown circuit that prevents damage because of overheating. Due to the built-in reverse current protection function, the reverse current flowing from the VOUT pin to the VIN pin can be controlled as the small value 0.09 A max. Therefore, IC protection diode is not needed. Features Output voltage: 1.2 V to 4.0 V, selectable in 0.05 V step Input voltage: 2.0 V to 5.5 V Output voltage accuracy: 1.0% (1.2 V to 1.45 V output product: 15 mV) Dropout voltage: 150 mV typ. (3.0 V output product, I = 100 mA) OUT Current consumption: During operation: 5 A typ., 9 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 1.0 F or more can be used. Ripple rejection: 70 dB typ. (3.0 V output product, f = 1.0 kHz) Reverse current protection function: I = 0.09 A max. REV 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 battery-powered device Constant-voltage power supply for portable equipment Constant-voltage power supply for home electric appliance Constant-voltage power supply for mobile phone Packages SOT-23-5 SC-82AB HSNT-4 (1010) 1 5.5 V INPUT, 150 mA VOLTAGE REGULATOR WITH REVERSE CURRENT PROTECTION S-13R1 Series Rev.1.3 00 Block Diagrams 1. S-13R1 Series A type Function Status Reverse current ON / OFF logic Active detection circuit Discharge shunt Available VIN VOUT function Constant current Overcurrent Available source pull-down protection circuit Thermal shutdown circuit ON / OFF ON / OFF + circuit *1 Reference voltage circuit *1 VSS *1. Parasitic diode Figure 1 2. S-13R1 Series B type Function Status Reverse current ON / OFF logic Active detection circuit Discharge shunt Available VIN VOUT function Constant current Overcurrent Unavailable source pull-down protection circuit Thermal shutdown circuit ON / OFF ON / OFF + circuit *1 Reference voltage circuit *1 VSS *1. Parasitic diode Figure 2 2