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Overview - S-1142 Series

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.

DATA SHEET
2010.2.5

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

    *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

Standard Circuit