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S-13R1 Dataheets PDF



Part Number S-13R1
Manufacturers Seiko
Logo Seiko
Description REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
Datasheet S-13R1 DatasheetS-13R1 Datasheet (PDF)

S-13R1 Series www.sii-ic.com © Seiko Instruments Inc., 2012-2014 REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR Rev.1.2_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 μA typ., it has high ripple-rejection of 70 dB typ., and a ceramic capacitor of 1.0 μF or more can be used as the input and.

  S-13R1   S-13R1



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S-13R1 Series www.sii-ic.com © Seiko Instruments Inc., 2012-2014 REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR Rev.1.2_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 μA typ., it has high ripple-rejection of 70 dB typ., and a ceramic capacitor of 1.0 μF 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 μA 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, IOUT = 100 mA) • Current consumption: During operation: 5 μA typ., 9 μA max. • Output current: During power-off: 0.1 μA typ., 1.0 μA max. Possible to output 150 mA (VIN ≥ VOUT(S) + 1.0 V)*1 • Input and output capacitors: A ceramic capacitor of 1.0 μF or more can be used. • Ripple rejection: 70 dB typ. (3.0 V output product, f = 1.0 kHz) • Reverse current protection function: IREV = 0.09 μA max. • 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. • Constant current source pull-down is selectable. • Discharge shunt function is selectable. • Operation temperature range: Ta = −40°C to +85°C • 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) Seiko Instruments Inc. 1 REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR S-13R1 Series Rev.1.2_00  Block Diagrams 1. S-13R1 Series A type Reverse current detection circuit VIN Overcurrent protection circuit Thermal shutdown circuit VOUT Function ON / OFF logic Discharge shunt function Constant current source pull-down Status Active "H" Available Available ON / OFF ON / OFF circuit + − Reference voltage circuit *1 *1 VSS *1. Parasitic diode 2. S-13R1 Series B type Figure 1 Reverse current detection circuit VIN Overcurrent protection circuit Thermal shutdown circuit VOUT Function ON / OFF logic Discharge shunt function Constant current source pull-down Status Active "H" Available Unavailable ON / OFF VSS *1. Parasitic diode ON / OFF circuit + − Reference voltage circuit *1 *1 Figure 2 2 Seiko Instruments Inc. Rev.1.2_00 REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR S-13R1 Series 3. S-13R1 Series C type Reverse current detection circuit VIN Overcurrent protection circuit Thermal shutdown circuit VOUT Function ON / OFF logic Discharge shunt function Constant current source pull-down Status Active "H" Unavailable Available ON / OFF ON / OFF circuit + − Reference voltage circuit *1 VSS *1. Parasitic diode 4. S-13R1 Series D type Figure 3 Reverse current detection circuit VIN Overcurrent protection circuit Thermal shutdown circuit VOUT Function ON / OFF logic Discharge shunt function Constant current source pull-down Status Active "H" Unavailable Unavailable ON / OFF ON / OFF circuit + − Reference voltage circuit *1 VSS *1. Parasitic diode Figure 4 Seiko Instruments Inc. 3 REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR S-13R1 Series Rev.1.2_00  Product Name Structure Users can select the product type, output voltage, and package type for the S-13R1 Series. Refer to "1. Product name" regarding the contents of product name, "2. Function list of product types" regarding the product type, "3. Packages" regarding the package drawings, "4. Product name lists" regarding details of the product name. 1. Product name S-13R1 x xx - xxxx U 3 Environmental code U: Lead-free (Sn 100%), halogen-free Package abbreviation and IC packing specifications*1 M5T1: SOT-23-5, Tape N4T1: SC-82AB, Tape A4T2: HSNT-4 (1010), Tape Output voltage*2 12 to 40 (e.g., when the output voltage is 1.2 V, it is expressed as 12.) Product type*3 A to D *1. Refer to the tape drawing. *2. If you request the product which has 0.05 V step, contact our sales office. *3. Refer to "2. Function list of product types". 2. Function list of .


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