AAT4601 Datasheet, PDF (1/14 Pages) Advanced Analogic Technologies – 1.5A Current Limited P-Channel Switch

AAT4601
1.5A Current Limited P-Channel Switch
General Description
The AAT4601 SmartSwitch™ is part of
AnalogicTech's Application Specific Power
MOSFET™ (ASPM™) product family. It is a 1.5A
Current Limited P-channel MOSFET power switch
designed for high-side load-switching applications.
This switch operates with inputs ranging from 2.7V
to 5.5V, making it ideal for both 3V and 5V sys-
tems. An integrated current-limiting circuit protects
the input supply against large changes in load cur-
rent which could cause the supply to fall out of reg-
ulation. The AAT4601 has protection from thermal
overload which limits power dissipation and junc-
tion temperatures. The maximum current limit
level is 1.5A; the actual threshold is programmed
with a resistor from the SET pin to ground. The qui-
escent supply current is typically 12µA. In shut-
down mode, the supply current decreases to less
than 1µA.
The AAT4601 is available in 8-pin SOP or TSSOP
specified over -40 to 85°C.
Features
SmartSwitch^™
• 2.7V to 5.5V Input voltage range
• Programmable over current threshold
• Low quiescent current
• 12µA typical
• Less than 1µA with Switch off
• Only 2.5V needed for ON Control
• Thermal Shutdown
• Fault Flag
• 2ms Fault Blanking
• Undervoltage Lockout
• Temperature range -40 to 85°C
• 2kV ESD rating
• UL Approved—File No. E217765
• 8-pin SOP or TSSOP package
Applications
• USB ports
• Notebook computers
• Peripheral ports
• Hot swap supplies
Typical Application
UL Recognized Component
INPUT
1µF
100kΩ
ON
1
IN
2
IN
8 _FAULT
3
ON
AAT4601
GND
4
6
OUT
7
OUT
5
SET
R _SET
OUTPUT
1uF
4601.2001.11.0.92
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