AAT4250
Slew Rate Controlled Load Switch
General Description
The AAT4250 SmartSwitch is a member of
AnalogicTech鈥檚 Application Specific Power MOS-
FET鈩?(ASPM鈩? product family. It is a slew rate
controlled P-channel MOSFET power switch
designed for high-side load switching applications.
This switch operates with an input voltage range
from 1.8V to 5.5V, making it ideal for 2.5V, 3.3V, or
5V systems. The part features 1.5ms turn-on and
10碌s turn-off time. The AAT4250 has an under-
voltage lockout which turns off the switch when an
under-voltage condition exists. Input logic levels
are TTL compatible. The quiescent supply current
is very low, typically 2碌A(chǔ). In shutdown mode, the
supply current is typically reduced to 0.1碌A(chǔ) or less.
The AAT4250 is available in a Pb-free, 5-pin SOT23
(SOT25) package or a Pb-free, 8-pin SC70JW pack-
age and is specified over the -40擄C to +85擄C tem-
perature range.
Features
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SmartSwitch
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1.8V to 5.5V Input Voltage Range
120m鈩?(5V) Typical R
DS(ON)
Low Quiescent Current:
鈥?Typical 2碌A(chǔ)
鈥?Typical 0.1碌A(chǔ) with Enable Off
Only 2.0V Needed for ON/OFF Control
Temperature Range: -40擄C to +85擄C
5kV ESD Rating
SOT23-5 or SC70JW-8 Package
Applications
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Hot Swap Supplies
Notebook Computers
Personal Communication Devices
Typical Application
INPUT
IN
OUT
OUTPUT
AAT4250
C
IN
1碌F
ON
ON/OFF
GND
C
OUT
0.1碌F
GND
GND
4250.2006.03.1.3
1
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