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PDF AAT4608 Data sheet ( Hoja de datos )
| Número de pieza | AAT4608 | |
| Descripción | Current Limited Load Switch | |
| Fabricantes | Skyworks | |
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DATA SHEET
AAT4608
Current Limited Load Switch in a SOT23 Package
General Description
The AAT4608 SmartSwitch is a member of Skyworks'
Application Specific Power MOSFET™ (ASPM™) product
family. It is a current limited P-channel MOSFET power
switch designed for high-side load switching applica-
tions. This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3V and 5V systems. An
integrated current-limiting circuit protects the input sup-
ply against large currents which may cause the supply to
fall out of regulation. The AAT4608 is also protected
from thermal overload which limits power dissipation
and junction temperatures. It can be used to control
loads that require up to 1A. Current limit threshold is
programmed with a resistor from SET to ground. The
quiescent supply current is typically a low 15μA max.
The AAT4608 is available in a Pb-free, 5-pin SOT23 pack-
age, and is specified over the -40°C to +85°C tempera-
ture range.
Features
• 2.7V to 5.5V Input Voltage Range
• Programmable Over-Current Threshold
• Fast Transient Response:
▪ <1μs Response to Short Circuit
• Low Quiescent Current
▪ 15μA Typical
▪ 1μA Max With Switch Off
• 160m Typical RDS(ON)
• Under-Voltage Lockout
• Thermal Shutdown
• Temperature Range: -40°C to +85°C
• 4kV ESD Rating
• 5-Pin SOT23 Package
Applications
• Hot Swap Supplies
• Notebook Computers
• Peripheral Ports
• Personal Communication Devices
Typical Application
INPUT
1μF
GND
5
IN
AAT4608 OUT 1
SOT23
3
SET
GND
2
RSET
OUTPUT
0.47μF
GND
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201915A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012
1
1 page  
Typical Characteristics
Unless otherwise noted, VIN = 5V, TA = 25°C.
Quiescent Current vs. Temperature
25
20
15
10
5
0
-40
-20
0 20 40 60 80
Temperature (°C)
100 120
DATA SHEET
AAT4608
Current Limited Load Switch in a SOT23 Package
Quiescent Current
40
30
20
10
0
2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
Output Current vs. Output Voltage
(RSET = 16kΩ)
0.6
0.4
0.2
0
0 12 34 5
Output Voltage (V)
Short-Circuit Through 0.3Ω
8 12
6
Input Voltage
8
4
Output Current
4
20
Output Voltage
0 -4
0123
Time (μs)
RDS(ON) vs. Temperature
250
Input = 3V
200
150 Input = 5V
100
50
0
-40
-20
0 20 40 60
Temperature (°C)
80
100
Short-Circuit Through 0.6Ω
89
Input Voltage
66
4
Output Current
3
20
Output Voltage
0 -3
0123
Time (μs)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
201915A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 3, 2012
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AAT4608.PDF ] | |
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