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參數(shù)資料
| 型號(hào)： | AAT4612 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | Current Limited Load Switch |
| 中文描述： | 電流限制負(fù)荷開關(guān) |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 670K |
| 代理商： | AAT4612 |
SmartSwitch
AAT4612
Current Limited Load Switch
P
4612.2002.1.0.9
1
General Description
The AAT4612 SmartSwitch is a member of
AnalogicTech's Application Specific Power MOS-
FET (ASPM) product family. It is a Current
Limited P-channel MOSFET power switch designed
for high-side load-switching applications operating
with inputs ranging from 2.
4
V to 5.5V which makes it
ideal for both 3V and 5V systems. An integrated cur-
rent-limiting circuit protects the input supply from large
currents which potentially cause the supply to fall out
of regulation. In addition, the AAT4612 thermal over-
load protection limits power dissipation and junction
temperatures associated with prolonged periods of
operation in current limit. Due to its low R
DS(ON)
, the
AAT4612 can be used to control loads that require up
to 1A even while operating at high ambient tempera-
tures. The ultra fast current-limit response to a sud-
den short circuit is a mere 500ns which reduces the
requirements of local supply bypassing. Quiescent
current is a low 1
0
μA and in shutdown mode, the
supply current decreases to less than 1μA.
The AAT4612 is available in a 5-pin SOT23, and an
8-pin SC70JW specified over a -40 to 85°C temper-
ature range.
The AAT4600 Series is a family of adjustable and
fixed SmartSwitch products with a range of current
handling capabilities. Available are single versions
with adjustable current limit (AAT4610, AAT4601) as
well as fixed current limit (AAT4625), and dual ver-
sions with fixed current limit (AAT4626, AAT4670).
Features
2.
4
V to 5.5V Input voltage range
1A current limit trip threshold
Fast transient response:
<1μs response to short circuit
Low quiescent current
1
0
μA typ
1μA max with Switch off
100m
typical R
DS(ON)
Undervoltage Lockout
Thermal Shutdown
Temp range -40 to 85°C
4kV ESD Rating
5-pin SOT23 package
Applications
Peripheral ports
Notebook computers
Personal communication devices
Hot swap supplies
Typical Application
AAT4612
SOT23
ON
IN
OUT
GND
ON
INPUT
GND
GND
C
IN
1
μ
F
C
OUT
0.47
μ
F
V
CC
1
2
5
4
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