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产品信息
LPSemi/微源半导体 LPW5209A SOT23-5 2.4A可编程限流电源开关
General Description
The LPW5209A 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 2.4A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.
Features
◆ 80mΩ Low RDS(ON), High-side N-MOSFET
◆ 2400mA Programmable Current limit
◆ Fold-back Current limit
◆ 2.5V to 6V Input Voltage
◆ Low Quiescent Current:30μA
◆ Soft Start Function
◆ Built-In Short-Circuit Protection
◆ Built-in Thermal Protection
◆ RoHS Compliant and 100% Lead (Pb)-Free
Applications
◆ Power Switch
◆ USB Device
◆ Battery Charger Circuits
