Features: • 2.4V to 5.5V Input voltage range• 500mA min current limit trip threshold• Fast transient response:• 400ns response to short circuit• Low quiescent current• 10µA typical• < 1µA with Switch off• 125mΩ typical RDS(ON)...
AAT4618: Features: • 2.4V to 5.5V Input voltage range• 500mA min current limit trip threshold• Fast transient response:• 400ns response to short circuit• Low quiescent current...
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Power Switch ICs - Power Distribution Slew Rate Controlled Load Switch
Symbol |
Description |
Value |
Units |
VIN, FAULT |
IN, FAULT to GND |
-0.3 to 6 |
V |
VON |
ON (ON) to GND |
-0.3 to VIN+1 |
V |
VOUT |
OUT to GND |
-0.3 to VIN+0.3 |
V |
IOUT |
Output Current |
Internally Limited |
A |
TJ |
Operating Junction Temperature Range |
-40 to 150 |
|
VESD |
ESD Rating1-HBM |
4000 |
mW |
TLEAD |
Maximum Soldering Temperature (at Leads) |
300 |
|
The AAT4618 SmartSwitch™ is a member ofAnalogicTech's Application Specific Power MOS-FET™ (ASPM™) product family. It is a CurrentLimited P channel MOSFET power switch designedfor high-side load-switching applications operatingwith inputs ranging from 2.4V to 5.5V which makes itideal for 2.5V, 3V and 5V systems. An integrated cur-rent-limiting circuit protects the input supply from largecurrents which potentially cause the supply to fall outof regulation. In addition, the AAT4618 thermal over-load protection limits power dissipation and junctiontemperatures associated with prolonged periods ofoperation in current limit. Due to its low RDS(ON),
theAAT4618 can be used to control loads that require upto 500mA even while operating at high ambient tem-peratures. The ultra fast current-limit response to asudden short circuit is a mere 400ns which reduces
the requirements of local supply bypassing. An opendrain FAULT flag signals an over current or over tem-perature condition after a 4ms timeout. Quiescentcurrent is a low 10µA and in shutdown mode, the sup-ply current decreases to less than 1µA.