SmartSwitchTM
PRODUCT DATASHEET
AAT4282A
Slew Rate Controlled Load Switch
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
Symbol
INA
ENA
ENB
INB
OUTB
GND
FAST
OUTA
Function
This is the pin to the P-channel MOSFET source for Switch A. Bypass to ground through a 1μF capacitor.
INA is independent of INB
Active-High Enable Input A. A logic low turns the switch off and the device consumes less than 1μA of cur-
rent. Logic high resumes normal operation.
Active-High Enable Input B. A logic low turns the switch off and the device consumes less than 1μA of cur-
rent. Logic high resumes normal operation.
This is the pin to the P-channel MOSFET source for Switch B. Bypass to ground through a 1μF capacitor.
INB is independent of INA.
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.
Ground connection
Active-high input Switches between FAST (Logic H) and SLOW (Logic L) Slew rate
This is the pin to the P-channel MOSFET drain connection. Bypass to ground through a 0.1μF capacitor.
Pin Configuration
FTDFN22-8
(Top View)
INA 1
ENA 2
ENB 3
INB 4
8 OUTA
7 FAST
6 GND
5 OUTB
2
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4282A.2008.02.1.2