LPW5206A

Preliminary LPW5206/A USB Power Loading Switch General Description The LPW5206/A is an integrated 160mΩ 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 MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. Its low quiescent current (16μA) and small package (SOT-23-5) is particularly suitable in battery-powered portable equipment. Several protection functions include soft start to limit inrush current during plug-in, current limiting at 500mA/1A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions. Features — — — — — — — — 160m Low Rdson,High-side NMOSFET Guaranteed 500mA/1000mA Continuous Current 2.5V to 7V Input Voltage Low Quiescent Current:16uA Soft Start Function Built-In Short-Circuit Protection Built-in Thermal Protection RoHS Compliant and 100% Lead (Pb)-Free Typical Application Circuit VIN 5 4 GND LPW5206 Vin GND EN Vout NC 1 3 GND VOUT Order Information LPW5206 □ □ □ □ F: Pb-Free Package Type B5: SOT23-5 Current Limit Default: 500mA A: 1000mA 100K GND GND Marking Information Please see website. Applications — — — Power Switch USB Device Battery Charger Circuits LPW5206/A –07 Ver. 1.7 Datasheet Nov.-2010 www.lowpowersemi.com 2 Page 1 of 8 Preliminary Functional Pin Description P a c k a g e Ty p e Pin Configurations LPW5206/A SOT23-5 PIN 1 2 3 ...