FPF2165R Datasheet, PDF (1/11 Pages) Fairchild Semiconductor – Full Function Load Switch with Adjustable Current Limit

April 2009
FPF2165R
tm
Full Function Load Switch with Adjustable Current Limit
Features
„ 1.8 to 5.5V Input Voltage Range
„ Controlled Turn-On
„ 0.15-1.5A Adjustable Current Limit
„ +/- 10% Current Limit Accuracy versus Temperature
„ Undervoltage Lockout
„ Thermal Shutdown
„ <2µA Shutdown Current
„ Fast Current limit Response Time
„ 5µs to Moderate Over Currents
„ 30ns to Hard Shorts
„ Reverse Current Blocking
„ RoHS Compliant
Applications
„ PDAs
„ Cell Phones
„ GPS Devices
„ MP3 Players
„ Digital Cameras
„ Peripheral Ports
„ Hot Swap Supplies
General Description
The FPF2165R is a load switch which provides full protection to
systems and loads which may encounter large current
conditions. These devices contain a 0.12Ω current-limited P-
channel MOSFET which can operate over an input voltage
range of 1.8-5.5V. Internally, current is prevented from flowing
when the MOSFET is off and the output voltage is higher than
the input voltage. Switch control is by a logic input (ON) capable
of interfacing directly with low voltage control signals. Each part
contains thermal shutdown protection which shuts off the switch
to prevent damage to the part when a continuous over-current
condition causes excessive heating.
When the switch current reaches the current limit, the parts
operate in a constant-current mode to prohibit excessive
currents from causing damage. The FPF2165R will not turn off
after a current limit fault, but will rather remain in the constant
current mode indefinitely. The minimum current limit is 150mA.
These parts are available in a space-saving 6 pin 2X2 MLP
package.
BOTTOM
Pin 1
TOP
Ordering Information
Part
FPF2165R
Current Limit
[mA]
150-1500
Current Limit
Blanking Time
[ms]
0
Auto-Restart
Time
[ms]
NA
ON Pin
Activity
Active HI
Top
Mark
65R
©2008 Fairchild Semiconductor Corporation
1
FPF2165R Rev. A
www.fairchildsemi.com