AP2120

Document number: DS41206 Rev. 5 - 2

2 of 19

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March 2021

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AP2120

Typical Applications Circuit

VIN

AP2120-2.5

CIN

1µF

COUT

1µF

VOUT

VIN

VOUT

GND

VIN=3.5V

VOUT=2.5V

Note:

Filter capacitors are required at the AP2120's input and output. 1µF capacitor is required at the input.

The minimum output capacitance required for stability should be more than 1µF with ESR from 0.01Ω to 100Ω. Ceramic capacitors are recommended.

Pin Descriptions

Pin Number

Pin Name

Function

SOT-23 (N)

1

GND

Ground

2

VOUT

Regulated Output Voltage

3

VIN

Input Voltage

Functional Block Diagram

VIN

VREF

CURRENT LIMIT

GND

VOUT