GENERAL DESCRIPTION

The SGM2593A and SGM2593AD are single channel

power distribution switches. The switch controlled by

the EN pin operates from 2.5V to 6V supply voltage. It

can be used in USB power distribution applications.

The device has integrated programmable current limit

function to protect the upstream power supply from

damage during over-current or short-circuit condition. It

also has the function of over-temperature protection.

The device is designed with soft-start circuit to cope

with inrush currents when large capacitive loads are

connected. The nFAULT output will be asserted to low

level during over-current, over-temperature or reverse

voltage condition.

The SGM2593AD further reduces the total solution size

by integrating a 50Ω pull-down resistor for output

discharge when the switch is shut down by EN.

The SGM2593A and SGM2593AD are available in

Green TDFN-2×2-6AL and SOT-23-6 packages.

FEATURES

● High-side N-MOSFET

● On-Resistance:

? TDFN-2×2-6AL: 60mΩ (TYP)

? SOT-23-6: 65mΩ (TYP)

● Programmable Current Limit Range:

? 0.1A to 3A

● Input Voltage Range: 2.5V to 6V

● Quiescent Current: 28μA (TYP)

● Shutdown Current: 0.3μA (TYP)

● Soft-Start Function

● Over-Temperature Protection

● Under-Voltage Lockout Protection for VIN

● No Reversed Leakage Current (Reverse Blocking)

● Fault Flag (nFAULT Pin)

● Quick Output Discharge

● 1.2MΩ Pull-Down Resistor at EN Pin

● UL Recognized Component (File No. E532373*)

● Available in a Green TDFN-2×2-6AL and SOT-23-6

Packages

APPLICATIONS

General Purpose Power Switching

USB Bus/Self-Powered Hub

USB Peripheral

ACPI Power Distribution

Smart Phone

LCD TV