微源原装 LPW5207 1.5A电源开关芯片
General Description
The LPW5207 is an integrated 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 (30μA) and small package (SOT23-5) is particularly suitable in battery-powered portable equipment.Several protection functions include soft start to limit inrush current during plug-in, current limiting at 1500mA to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.
Features
◆110mΩ Low Rdson, High-side NMOSFET
◆Guaranteed 1500mA Continuous Current
◆2.5V to 6V Input Voltage
◆Low Quiescent Current:30uA
◆Soft Start Function
◆Built-In Short-Circuit Protection
◆Built-in Thermal Protection
◆RoHS Compliant and 100% Lead (Pb)-Free
Application
◆Power Switch
◆USB Device
◆Battery Charger Circuits
