GENERAL DESCRIPTION

The SGM2578 is a single channel power distribution

switch. The switch operates from a wide range of 1V to

5V supply voltage, and is controlled by the EN pin. It

can be used in USB power distribution applications.

A 54mΩ low RON N-MOSFET is integrated. The small

size and quiescent current make the device very suitable

for space limited, battery-powered applications.

A number of protection features are provided in the

device including soft-start, current limit and thermal

shutdown. The internal reverse-voltage function will

protect devices on the input side of the switch. The

SGM2578 has automatic discharge function to quickly

discharge VOUT in the disabled status.

The SGM2578 is available in a Green WLCSP-0.9×0.9-4B

package and operates over a temperature range of

-40℃ to +85℃.

FEATURES

● Low Input Voltage: 1V to 5V

● Low On-Resistance (RON)

RON = 54mΩ at VIN = 5.0V

RON = 54mΩ at VIN = 3.6V

RON = 58mΩ at VIN = 2.5V

RON = 74mΩ at VIN = 1.8V

RON = 84mΩ at VIN = 1.2V

RON = 84mΩ at VIN = 1.0V

● Continuous Switch Current: 1A (MAX)

● Quiescent Current: 5μA (TYP)

● Shutdown Current: < 1.5μA

● Quick Output Discharge (QOD)

● Soft-Start Function

● Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,

Test Program 1 with CB Report

● Available in a Green WLCSP-0.9×0.9-4B Package

APPLICATIONS

Portable Medical Equipment

Battery Powered Equipment

Hot-Plug Power Supply

Motherboard USB Power Switch

Portable Media Players