FPF1320 − IntelliMAX™ Dual-Input Single-Output Advanced Power Switch with True Reverse-Current Blocking


The FPF1320/21 is a Dual-Input Single-Output (DISO) load switch consisting of two sets of slew-rate controlled, low on-resistance, P-channel MOSFET switches and integrated analog features. The slew-rate-controlled turn-on characteristic prevents inrush current and the resulting excessive voltage droop on the power rails. The input voltage range operates from 1.5V to 5.5V to align with the requirements of low-voltage portable device power rails. FPF1320/21 performs seamless power-source transitions between two input power rails using the SEL pin with advanced break-before-make operation.

FPF1320/21 has a TRCB function to block unwanted reverse current from output to input during ON/OFF states. The switch is controlled by logic inputs of the SEL and EN pins, which are capable of interfacing directly with low-voltage control signals (GPIO).

FPF1321 has 65Ω on-chip load resistor for output quick discharge when EN is LOW.

FPF1320/21 is available in 1.0mm x 1.5mm WLCSP, 6-bump, with 0.5mm pitch.

Download Datasheet Buy Products Request Free Samples Product Availability

Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 FPF1320UCX Full Production
Green as of Aug 2011
$0.2834  Details

Line 1:QS&K
Show more...
FIT :  0.7  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  


■ DISO Load Switches
■ Input Supply Operating Range: 1.5V ~ 5.5V
■ RON 50mΩ at VIN=3.3V Per Channel (Typical)
■ True Reverse-Current Blocking (TRCB)
■ Fixed Slew Rate Controlled 130µs for 1µF COUT
■ ISW: 1.5A Per Channel (Maximum)
■ Quick Discharge Feature on FPF1321
■ Logic CMOS IO Meets JESD76 Standard for GPIO Interface and Related Power Supply Requirements
■ ESD Protected:
- Human Body Model: 6kV
- Charged Device Model: 1.5kV
- IEC 61000-4-2 Air Discharge: 15kV
- IEC 61000-4-2 Contact Discharge: 8kV


  • Media Tablets

Application Notes

© Copyright Fairchild Semiconductor. All rights reserved. Privacy Policy | Site Terms & Conditions | Standard Terms & Conditions of Sale | Trademarks | Site Map | IPC Saving our world 1mW at a time
  Knowledge Base Support Request Form.
  Slide to enable Submit button:
Locked Unlocked