TPS2550

TPS2550 TPS2551 www.ti.com ........................................................................................................................................ SLVS736B – FEBRUARY 2008 – REVISED NOVEMBER 2008 ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES FEATURES 1 2 Adjustable Current-Limit, 100 mA–1100 mA Fast Overcurrent Response - 2 µS Typical 85-mΩ High-Side MOSFET (DBV Package) Reverse Input-Output Voltage Protection Operating Range: 2.5 V to 6.5 V Deglitched Fault Report 1-µA Maximum Standby Supply Current Junction Temperature Range: –40°C to 125°C Built-in Soft-Start 15 kV ESD Protection (with external capacitance) UL Listed – File No. E169910 Current-Limit Resistor Calculator – SLVC163 APPLICATIONS USB Ports/Hubs Cell phones Laptops Heavy Capacitive Loads Reverse-Voltage Protection PAD TPS2550/TPS2551 DRV PACKAGE (TOP VIEW) OUT 1 6 IN ILIM 2 5 GND FAULT 3 4 EN TPS2550/TPS2551 DBV PACKAGE (TOP VIEW) IN 1 6 OUT GND 2 5 ILIM EN 3 4 FAULT EN = Active Low for the TPS2550 EN = Active High for the TPS2551 DESCRIPTION The TPS2550/51 power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered, incorporating a 100-mΩ, N-channel MOSFET in a single package. The current-limit threshold is user adjustable between 100 mA and 1.1 A via an external resistor. The power-switch rise and fall times are controlled to minimize current surges during switch...