GENERAL DESCRIPTION

The SGM2594 is a single channel power distribution

switch. 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 SGM2594 has integrated 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 SGM2594AD/BD/CD further reduces the total

solution size by integrating a 50Ω pull-down resistor for

output discharge when the switch is shut down by EN.

SGM2594 is available in a Green SOT-23-5 package.

FEATURES

● High-side N-MOSFET

● On-Resistance: 66mΩ (TYP)

● Three Current Limit Levels

SGM2594A/AD: 1300 ± 100mA

SGM2594B/BD: 2400 ± 160mA

SGM2594C/CD: 3000 ± 200mA

● Input Voltage Range: 2.5V to 6V

● Quiescent Current: 28μA (TYP)

● Shutdown Current: 0.27μA (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 (SGM2594AD/BD/CD)

● 1.2MΩ Pull-Down Resistor at EN Pin

● Available in a Green SOT-23-5 Package

APPLICATIONS

General Purpose Power Switching

USB Bus/Self-Powered Hub

USB Peripheral

ACPI Power Distribution

Smart Phone

LCD TV