ET3137
General Description
The ET3137 advanced load management switches target applications requiring a highly integrated solution it disconnects loads powered from DC Power Rail (< 5.5V) with stringent off-state current targets. Each switch consists of slew-rate controlled low-impedance MOSFET Switch (40mΩ Typ) and other integrated analog features. The slew-rate controlled turn-on characteristic prevents inrush-current and the resulting excessive voltage droop on power rails.
These devices have exceptionally low off-state current drain (< 1μA max) which facilitate compliance in very low stand-by power applications. The input voltage range operates from 1.2V to 5.5V DC to fulfill a wide range of applications in consumer, optical, medical, storage, portable, and industrial device power management. Switch control is managed by a logic input (Active LOW) capable of interfacing directly with low voltage control signal/GPIO with no external pull-down resistor required.
Features
1.2V to 5.5V Input Voltage Operating Range
Typical RDS(ON):
-- 40mΩ at VIN=5.5V
-- 50mΩ at VIN=3.3V
-- 90mΩ at VIN=1.8V
-- 180mΩ at VIN=1.2V
Slew Rate/Inrush Control with tR: 60us (Typ)
2.2A Maximum Continuous Current Capability
Low < 1μA Off Switch Current
Logic CMOS IO meets JESD76 standard
ESD Protected: Above 8kV HBM, 2kV CDM
Applications
Smartphones, Tablet PC
HDD, Storage, and Solid State Memory Devices
SLR Digital Cameras
GPS and Navigation Equipment
Industrial Handheld and Enterprise Equipment
Pin Configuration
Block Diagram
Application Circuits