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Overview - S-1702 series

Ultra-Low Current Consumption 150 mA Voltage Regulator With Built-In High-Accuracy Voltage Detector And Reset Input Function S-1702 Series

The S-1702 Series, developed based on CMOS technology, is a 150 mA output positive voltage regulator with a low dropout voltage, a high-accuracy output voltage, and low current consumption.
The S-1702 Series includes a voltage regulator with high-accuracy output voltage of ±1.0% allowing to use a ceramic capacitor of 1.0 µF or more, and a voltage detector that monitors the output/input voltage of the regulator. It also includes an overcurrent protector that prevents the output current from exceeding the current capacitance of the output transistor and an output forcible discharge circuit for the regulator operation off.
Small SNT-6A package is available for the S-1702 Series. And an external small capacitor can be used, enabling high-density mounting. Its super-low current consumption makes the S-1702 Series ideal for mobile devices.

DATA SHEET
2009.6.9

Features

    Regulator block
    • Output voltage: 1.5 V to 5.5 V, selectable in 0.05 V step
    • High-accuracy output voltage: ±1.0%
    • Ultra-low current consumption: Current consumption of regulator block: 9 µA typ., 16 µA max.
    • High peak current capability: 150 mA output (at VIN ≥ VOUT(S) + 1.0 V)   (*1)
    • Built-in on/off discharge circuit: Longer battery life, discharges output load instantaneously
    • High ripple rejection: 70 dB typ. (at 1.0 kHz)
    • Built-in overcurrent protector: limits overcurrent of output transistor

    Detector block
    • Output voltage: 1.3 V to 5.2 V, selectable in 0.05 V step
    • Built-in high-accuracy voltage detector: ±1.0%
      Monitoring output/input or monitoring external input by option
      (detector output)
    • External reset input Forcible assertion of detector output by external reset pin (RESX) input

    Overall
    • Correlation temperature gradient in the regulator and the detector blocks
    • Ultra-low current consumption: During operation: 10 µA typ., 18 µA max.   (*2)
    • Small package: SNT-6A
    • Lead-free product


    *1. Attention should be paid to the power dissipation of the package when the output current is large.
    *2. Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins

Applications


    • Wireless power supply circuit block for cellular phones
    • Power supply circuit block for health care products
    • Power supply circuit block for various mobile devices

Standard Circuit