AP22908

Document number: DS42262 Rev. 5 - 2

2 of 19

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February 2023

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AP22908

Typical Applications Circuit

AP22908

VIN

ON

GND

VOUT

VIN

VOUT

CIN

1

μF

COUT

0.1

μF to 1.0μF

Pin Descriptions

Pin Name

Pin Number

Function

SOT26

X1-WLB0909-4

U-WLB0909-4

VOUT

1

A1

Voltage output pin. This is the pin to the P-channel MOSFET drain connection. Bypass to ground

through a 0.1µF to 1µF capacitor.

VIN

4, 6

A2

Voltage input pin. This is the pin to the P-channel MOSFET source. Bypass to ground through a

1µF capacitor.

GND

2, 5

B1

Ground

ON

3

B2

Enable input, active high

Functional Block Diagram

VIN

ON

GND

VOUT

Slew Rate

Control

Output

Discharge