供应微源 LPW5220 ESOP8 3.0A电源开关芯片

微源半导体 LPW5220 ESOP8 3.0A可编程限流电源开关

general description

The LPW5220 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 (36μA) and small package (ESOP-8) is particularly suitable in battery-powered portable equipment.

Several protection functions include soft start to limit inrush current during plug-in, current limiting at 3000mA to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.

Absolute Maximum Ratings Note 1

◆ Input Voltage to GND: 6.5V 

◆ Output Voltage to GND: 6.5V

◆ Other pin to GND: 6V

◆ Maximum Junction Temperature: 125C

◆ Operating Ambient Temperature Range (TA): -40C to 85°C

◆ Maximum Soldering Temperature (at leads, 10 sec): 260°C

Thermal Information

◆ Maximum Power Dissipation (Po, TA=25*C): 1.25W

◆ Thermal Resistance (0uA): 46°CW

ESD Susceptibility

◆ HBM(Human Body Mode): 2KV

◆ MM(Machine Mode): 200V

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