MH9702

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Features

190m

Ω

Typ. High-Side PMOSFET (SOT

23-5)

Guaranteed 1.1A Continuous Current

1.5A Current Limit

Small SOT23-5 Package Minimizes Board

Space

Soft Start

Thermal Protection

Low 23

μ

A Supply Current Wide Input Voltage Range: 2.2V ~ 6V

Applications

Battery-Powered Equipment

Motherboard USB Power Switch

USB Device Power Switch

Hot-Plug Power Supplies

Battery-Charger Circuits

Description

The M H9702 is an integrated 1 9 0 m

power

switch for self-powered and bus-powered

Universal Series Bus (USB) applications. A

built-in charge pump is used to drive the

N-channel PMOSFET that is free of parasitic

body diode to eliminate any reversed current flow

across the switch when it is powered off. Its low

quiescent supply current (23

μ

A) and small

package (SOT-23) is particularly suitable in

battery-powered portable equipment.

Several protection functions include soft start to

limit inrush current during plug-in, current limiting

at 1.5A to meet USB power requirement, and

thermal shutdown to protect damage under over

current conditions.current.