G5243AT11U

G5243A Global Mixed-mode Technology Inc. High-Side Power Distribution Switch Features General Description „ The G5243A is an integrated 120mΩ power switch for self-powered and bus-powered Universal Serial Bus (USB) applications. „ „ „ „ „ „ „ „ „ „ 120mΩ High-Side MOSFET 2A of Current Limits with Foldback Operating Range:2.7V to 5.5V 1.9ms Typical VOUT Turn-On Rise Time Under voltage Lockout 65µA Quiescent Supply Current 1µA Maximum Standby Supply Current Active-High Enable Pin No Reverse Current when Power Off Shutdown Discharge Function at OUT Pin SOT-23-5 Package Several Protection features include current limiting with foldback, and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. And a built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. G5243A has shutdown discharge function when power switch is off. The typical pull low resistor is 75Ω. „ Applications „ „ „ „ „ „ High-Side Power Protection Switch USB Power Management USB Host and Self-Powered Bubs USB Bus-Powered Hubs Hot Plug-In Power Supplies Battery-Charger Circuits Its low quiescent supply current and small package (SOT-23-5) is particularly suitable in battery-powered equipment, like PDA, mobile phone. Ordering Information ORDER NUMBER MARKING SHUTDOWN PULL LOW RESISTOR TEMP. RANGE PACKAGE (Green) G5243AT11U 523Ax 75Ω -40°C to +85°C SOT-23-5 Note: T1: SOT-23-5 1: Bonding Code U: Tape & Reel Pin Configuration Typical Application Circuit G5243A G5243A OUT 1 5 IN V IN GND EN 2 C IN 1µF 3 4 IN ON OFF EN OUT GND V OUT C OUT 4.7µF IN SOT-23-5 TEL: 886-3-5788833 http://www.gmt.com.tw Ver 1.0 Dec 22, 2008 1