The SI-3000LSA 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 electrolytic capacitors for the output capacitor at the voltage of 16V.

Design Support

Related Documents

■Application Note
■3D CAD Data

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    ・Compact surface-mount package(SOP8)
    ・Output current: 1.0A
    ・Low circuit current at output OFF Iq(OFF)≦1μA(VC=0V)
    ・Low dropout voltage VDIF≦0.8V(at IO=1A)
     (VDIF≦1.2V(at IO=1A) for SI-3018LSA)
    ・Output voltage: 2.5V fixed
    ・Output ON/OFF control terminal voltage compatible with LS-TTL
    ・Built-in foldback-type-overcurrent and thermal protection circuits


    ・Auxiliary power supplies for PC
    ・Battery-driven electronic equipment


Output Voltage 2.5 V
Output Current 1.00 A
Input Voltage 16.00 V
Dropout Voltage 0.4 V
Output Method Fixed
Output On / Off YES
Low ESR Capacitor Support NO
Overcurrent Protection Foldback Type

Block Diagram

Block Diagram

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