AP22980

Document number: DS45227 Rev. 2 - 2

2 of 14

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September 2022

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AP22980

Typical Applications Circuit

AP22980

VIN

GND

SS

EN

VOUT

VBIAS

Power

Supply

CIN

COUT

ON OFF

Load

*VBIAS, 2.2 V ~ 5.5 V

0.285 V ~ VBIAS

1uF

Tri-State Input : Pin Configuration

High : Connect to VBIAS

Float : Leave open, trace must be < 0.01inch

Low : Connect to GND

* If VIN is higher than 2.2V then VBIAS pin can be connected to VIN.

Pin Descriptions

Pin Name

Pin Number

Function

VBIAS

1

VBIAS Input. Power supply to the device.

VIN

2, 3, 4

Power Switch Input. Place bypass capacitor to GND.

GND

5

Ground

VOUT

6, 7, 8

Power Switch Output. Place bypass capacitor to GND.

SS

9

Tri-State Slew Rate Control Input (HIGH/Floating/LOW).

EN

10

Active HIGH Enable Input. Do not leave floating.

Functional Block Diagram

Thermal Shutdown

VIN

SS

VBIAS

EN

GND

VOUT

Gate

Driver

AP22980

Tri-state

Detection

Vdd

Control Logic

with

Charge Pump

-

+

Ven

Rdis