S-1230/1 Series Linear Regulator

ABLIC S-1230/1 series linear regulators feature an operation voltage of 66 V, low consumption current of 2.0 μA typ., and high temperature operation up to +105°C

Image of Ablic S-1230/1 Series Linear RegulatorThe ABLIC S-1230 and S-1231 series positive voltage regulators offer a high-withstand voltage, low current consumption, and high-accuracy output voltage. They have a high operation voltage of 66 V, making it compatible with 12 V, 24 V, and 48 V battery systems, and they can be operated at a low consumption current of 2.0 μA typ. They also feature a built-in overcurrent protection circuit to limit overcurrent of the output transistor, a built-in thermal shutdown circuit to limit heat, and a built-in open-loop protection circuit to control output voltage overvoltage.

Features
  • Output voltage (internally set)
    • 1.8 V, 3.0 V, 3.3 V, 5.0 V
  • Output voltage (externally set)
    • 1.8 V to 15.0 V*1, settable via external resistor
  • Input voltage
    • 6.0 V to 66.0 V
  • Output voltage accuracy
    • ±1.5% (Ta = +25°C)
  • Current consumption
    • During operation: 2.0 μA typ., 5.0 μA max. (Ta = +25°C)
    • During power-off: 0.1 μA typ., 2.0 μA max. (Ta = +25°C)
  • Output current
    • S-1230: Possible to output 100 mA (at VIN ≥ VOUT(S) + 3.0 V)*2
    • S-1231: Possible to output 200 mA (at VIN ≥ VOUT(S) + 5.0 V)*2
  • Input capacitor
    • A ceramic capacitor can be used (0.1 μF or more)
  • Output capacitor
    • A ceramic capacitor can be used (1.0 μF or more)
  • Built-in overcurrent protection circuit
    • Limits overcurrent of output transistor
  • Built-in thermal shutdown circuit
    • Detection temperature +170°C typ.
  • Built-in open-loop protection circuit (only for type in which output voltage is externally set)
    • Controls VOUT overvoltage when the VADJ pin is open or shorted
  • Built-in ON / OFF circuit
    • Ensures long battery life
  • Operation temperature range
    • Ta = -40°C to +105°C
  • Lead-free (Sn 100%), halogen-free

*1. Please contact an ABLIC sales representatives before using the product over 15.0 V.
*2. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.

Applications
  • Constant-voltage power supply for industrial equipment
  • Constant-voltage power supply for home electric appliances
Functional diagrams (click to enlarge)

    Image of Ablic S-1230/1 Series Linear Regulator

S-1230/1 Series Linear Regulator

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Published: 2025-12-08