AAT4282B

Slew Rate Controlled Load Switch

DATA SHEET

2

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AAT4282B

Slew Rate Controlled Load Switch

DATA SHEET

Pin Descriptions

Pin #

Symbol

Function

1

INA

This is the pin to the P-channel MOSFET source for Switch A. Bypass to ground through a 1μF capaci-

tor. INA is independent of INB

2

ENA

Active-High Enable Input A. A logic low turns the switch off and the device consumes less than 1μA of

current. Logic high resumes normal operation.

3

ENB

Active-High Enable Input B. A logic low turns the switch off and the device consumes less than 1μA of

current. Logic high resumes normal operation.

4

INB

This is the pin to the P-channel MOSFET source for Switch B. Bypass to ground through a 1μF capaci-

tor. INB is independent of INA.

5

OUTB

This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.

6

GND

Ground connection

7

FAST

Active-high input Switches between FAST (Logic H) and SLOW (Logic L) Slew rate

8

OUTA

This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.

EP

-

Exposed Paddle. May be connected to ground. A large copper pad under the package is helpful for

thermal dissipation.

Pin Configuration

TDFN22-8

(Top View)

ENB

INB

INA

ENA

GND

OUTB

OUTA

FAST

3

4

1

2

6

5

8

7