1

Rev. 8/21/01

SP2525 +3.0 to +5.5 Power Control Switch

© Copyright 2001 Sipex Corporation

s Compliant to USB Specifications

s +3.0V to +5.5V Input Voltage Range

s Open Drain Error Flag Output

s 2.7V Undervoltage Lockout

s 500mA Minimum Continuous Load

Current

s 1.25A Short Circuit Current Limit

DESCRIPTION

The SP2525 device is a single +3.0V to +5.5V USB Supervisory Power Control Switch ideal

for self-powered and bus-powered Universal Serial Bus (USB) applications. The SP2525

device has low on-resistance (80m

Ω typical) and can supply 500mA minimum. The fault

currents are limited to 2.0A typical and the flag output pin is available to indicate fault

conditions to the USB controller. The 1ms soft start of the SP2525 device will eliminate any

momentary voltage drop on the upstream port that may occur when the switch is enabled in

bus-powered applications. The thermal shutdown feature will prevent permanent damage to

the SP2525 device when subjected to excessive current loads. The under voltage lockout feature

will ensure that the SP2525 device will remain off unless there is a valid input voltage present.

+3.0V to +5.5V USB Power Control Switch

SP2525

EN

OUT

OUT

FLG

GND

NC

IN

NC

SP2525

8

7

4

3

2

1

5

6

s 140m

Ω Maximum On-Resistance

s 80

µA On-State Supply Current

s 1

µA Shutdown Current

s Thermal Shutdown

s 1ms Soft-Start Power Up

s Active-High Version: SP2525-1

s Active-Low Version: SP2525-2

®