微源原厂 LPW5201 带故障指示的电源开关芯片
General Description
The LPW5201 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 600mA, 1100mA or 2100mA to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.
Application
◆ Power Switch
◆ USB Device
◆ Battery Charger Circuits
