AAT4601

Features:

• 2.7V to 5.5V Input voltage range
• Programmable over current threshold
• Low quiescent current
• 12A typical
• Less than 1A with Switch off
• Only 2.5V needed forON Control
• Thermal Shutdown
• Fault Flag
• 2ms Fault Blanking
• Undervoltage Lockout
• Temperature range -40 to 85
• 2kV ESD rating
• UL Approved-File No. E217765
• 8-pin SOP or TSSOP package




Application

• USB ports
• Notebook computers
• Peripheral ports
• Hot swap supplies




Pinout






Specifications

Symbol	Description	Value	Units
VIN	IN to GND	-0.3 to 6	V
VON, VFAULT	ON, FAULT to GND	-0.3 to VIN+0.3	V
VSET, VOUT	SET, OUT to GND	-0.3 to VIN+0.3	V
IMAX	Maximum Continuous Switch Current	3	A
TJ	Operating Junction Temperature Range	-40 to 150
TLEAD	Maximum Soldering Temperature (at Leads)	300
VESD	ESD Rating-HBM1	4000	V

Note: Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum rating should be applied at any one time.
Note 1: Human body model is a 100pF capacitor discharged through a 1.5k resistor into each pin.




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 systems.An integrated current-limiting circuit protects the input supply against large changes in load current which could cause the supply to fall out of regulation. The AAT4601 has protection from thermal overload which limits power dissipation and junction
temperatures. The maximum current limit level is 1.5A; the actual threshold is programmed with a resistor from the SET pin to ground. The quiescent supply current is typically 12A. In shutdown mode, the supply current decreases to less than 1A.

The AAT4601 is available in 8-pin SOP or TSSOP specified over -40 to 85