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S-1142

Seiko Instruments
Part Number S-1142
Manufacturer Seiko Instruments
Description HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR
Published Feb 11, 2010
Detailed Description Rev.1.0_03 HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-1142 Series The S-1142...
Datasheet PDF File S-1142 PDF File

S-1142
S-1142

Overview
Rev.
1.
0_03 HIGH-WITHSTAND VOLTAGE LOW CURRENT CONSUMPTION LOW DROPOUT CMOS VOLTAGE REGULATOR S-1142 Series The S-1142 Series, developed based on high-withstand voltage CMOS process, is a positive voltage regulator with a high-withstand voltage, low current consumption, and high output voltage accuracy.
The S-1142 Series operates at a high maximum operating voltage of 50 V and a low current consumption of 4.
0 µA (typ.
).
In addition to a built-in low on-resistance transistor which provides a very small dropout voltage and a large output current, this voltage regulator also has a built-in power-off circuit.
An overcurrent protector prevents the load current from exceeding the capacitance of the output transistor.
A built-in thermal shutdown circuit prevents damage caused by heat.
A high heat radiation HSOP-6 package enables high-density mounting.
„ Features • Output voltage : 2.
0 V to 12.
0 V, selectable in 0.
1 V step • Low equivalent series resistance capacitor : Ceramic capacitor of 0.
1 µF or more can be used as the I/O capacitor.
• Input voltage : 3.
0 V to 50 V • High-accuracy output voltage : ±1.
0% (at Tj = +25°C), ±3.
0% (Tj = −40°C to +105°C) • Low current consumption : During operation: 4.
0 µA typ.
, 9.
0 µA max.
(Tj = −40°C to +105°C) During shutdown: 0.
1 µA typ.
, 1.
0 µA max.
(Tj = −40°C to +105°C) • Output current : 200 mA (at VIN ≥ VOUT(S) + 2.
0 V)*1 • Built-in overcurrent protector : limits overcurrent of output transistor • Operation temperature range : −40°C to +105°C (S-1142xxxH only) • Built-in thermal shutdown circuit : prevents damage caused by heat • Built-in power on/off circuit : longer battery life • Small package : HSOP-6 • Lead-free product www.
DataSheet4U.
com *1.
Attention should be paid to the power dissipation of the package when the output current is large.
„ Applications • Constant-voltage power supply for electrical applications for vehicle interiors (S-1142xxxH only) • Constant-voltage power supplies for home electric appliances „ Packa...


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