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S-T111

Seiko Instruments
Part Number S-T111
Manufacturer Seiko Instruments
Description HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Published Dec 31, 2009
Detailed Description Rev.2.1_00 HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-T111 Series The S-T111 Series is a positive vol...
Datasheet PDF File S-T111 PDF File

S-T111
S-T111

Overview
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 voltage: • High-accuracy output voltage: • Low dropout voltage: • Low current consumption: „ Applications • Power supply for battery-powered devices • Power supply for personal communication devices • Power supply for home electric/electronic appliances • Power supply for cellular phones „ Package Package Name SOT-23-5 Package MP005-A Drawing Code Tape MP005-A Reel MP005-A Seiko Instruments Inc.
1 HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR Rev.
2.
1_00 S-T111 Series „ Block Diagra...


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