ELPW5208 Datasheet, PDF (1/8 Pages) E-CMOS Corporation – 1.2A Dual USB Power Loading Switch

1.2A Dual USB Power Loading Switch
ELPW5208
General Description
The ELPW5208 is an integrated 130mΩ 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 (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 1.2A to meet USB power requirement, and thermal shutdown to protect damage under over current
conditions.
Features
◆ 130mΩ Low Rdson,High-side NMOSFET
◆ Guaranteed 1200mA 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
Applications
◆ Power Switch
◆ USB Device
◆ Battery Charger Circuits
Pin Assignments
Pin Description
SOT23-5
1
2
3
4
5
Pin Name
VOUT
GND
N.C
EN
VIN
Pin Function
Output Pin
Ground Pin
No Connector
Device Enable(active high)
Input Pin
E-CMOS Corp. (www.ecmos.com.tw)
1/8
5K17N-Rev. F001