The SI-3000KS is a series regulator IC using a hypo saturation type PNP bipolar transistor in the power section and it can be used with the low difference of input/output voltages. It is provided with an ON / OFF terminal which operates in Active High mode and the current consumption of circuits at OFF time is zero. It is a regulator which can use low ESR capacitors such as ceramic capacitors for the output cacitor at the voltage of 17V.

Design Support

Related Documents

■Application Note
■3D CAD Data

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    ・Compact surface-mount package(SOP8)
    ・Output current: 1.0A
    ・Compatible with low ESR capacitor
    ・Low circuit current at output OFF Iq≦350μA(IO=0A、VC=2V)
    ・Low circuit current at output OFF Iq(OFF)≦1μA(VC=0V)
    ・Low-loss VDIF≦0.6V(at IO=1A)
    ・Variable output voltage
    ・Output ON/OFF control terminal voltage compatible with LS-TTL
    ・Built-in drooping-type-overcurrent and thermal protection circuits


    ・Local power supply
    ・Battery-driven electronic equipment


Output Voltage 5.0 V
Output Current 1.00 A
Input Voltage 17.00 V
Dropout Voltage 0.6 V
Output Method Variable
Output On / Off YES
Low ESR Capacitor Support YES
Overcurrent Protection Drooping Type

Block Diagram

Block Diagram

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