Full Function Load Switch with Adjustable Current Limit

The FPF2165R is a load switch that provides full protection to systems and loads which may encounter large current conditions. These devices contain a 0.12Ω current-limited Pchannel 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.


  • 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
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Product Product &
Eco Status
Unit Price/
1K Order
Packing Method Convention Package Marking
FPF2165R Full Production
Green as of May 2009

MLP 2x2 6L (MicroFET)  -  Details
0.8 x 2 x 2mm,  TAPE REEL

PDF MLP 2x2 6L (MicroFET)  Drawing
Last Update: May 2014 PDF MLP06 Packing Drawing
Last Update: Oct 2015
Line 1&Z (Plant Code)
&2 (2-Digit Date Code)

Line 265R

FIT 2.6 @55°C
change temp

ESD (CDM) 2000V

ESD (HBM) 4000V


Moisture Sensitivity Level (MSL) 1

Max Reflow Temp 260


If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
* Click here for further top mark packaging information for FPF2165R

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