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Alternatives to onsemi FDG901D

onsemi FDG901D and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

FDG901D compared against its qualified second sources
FDG901DonsemiTPS22917DBVRTexas InstrumentsTPS22918DBVRTexas Instruments+1more
FFF CompatibilityRequires a board redesign since it uses a 6-pin SOT-23 package and integrates the P-channel switch rather than being a standalone controller.Physical package is SOT-23-6 (2.9mm x 1.6mm) compared to the original SC-70-5 (2.0mm x 1.25mm) package.Perfect functional replacement that achieves the same end-system goal of controlled-slew high-side power switching, but with higher integration.Requires redesign because of SOT-23-6 footprint and integrated switch topology.Larger SOT-23-6 package compared to SC-70-5.Performs the same high-side slew-rate-controlled power switching function with integrated protection and discharge.
AI Summary

FDG901D by onsemi: 1/0 Driver SC-70-5.

The TPS22917DBVR is an active, highly integrated 2A load switch that combines a P-channel MOSFET and a programmable slew-rate controller into a single SOT-23-6 package. It is the modern industry standard for replacing legacy discrete PMOS load switches, significantly simplifying BOM count and reducing board space. Rise time is easily customized using a single capacitor on the CT pin.

  • Fully integrated 2A power switch and slew-rate controller in one package
  • Replaces both FDG901D and the external P-channel MOSFET, saving PCB area
  • Active, widely available modern component from a major manufacturer
  • Requires PCB layout modification to change the footprint from SC-70-5 to SOT-23-6 and reroute the power path.
  • Requires removing the discrete P-channel MOSFET from the layout since the switch is integrated.

The TPS22918DBVR is a highly versatile integrated high-side load switch that serves as an excellent system replacement. It features an adjustable rise time via an external capacitor and adds an adjustable quick output discharge (QOD) pin, enabling precise control over both the turn-on and turn-off speeds of the power rail.

  • Similar to TPS22917 but includes a dedicated QOD pin to adjust the quick output discharge rate
  • Replaces both FDG901D and the external MOSFET to simplify layout and BOM
  • Wide input voltage range from 1V to 5.5V supporting up to 2A continuous current
  • Requires redesigning the circuit layout to accommodate SOT-23-6 and removing the external PMOS.
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedNon-stockIn stock
REACHREACHREACHREACH
RoHSRoHSRoHSRoHS
Description1/0 Driver SC-70-5Power Switch/Driver 1:1 P-Channel 2A SOT-23-6Power Switch/Driver 1:1 N-Channel 2A SOT-23-6
ManufactureronsemiTexas InstrumentsTexas Instruments
TypeInterfacePower Management (PMIC)Power Management (PMIC)
DatasheetOpenOpenOpen
Lead Time35 weeks16 weeks16 weeks
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542.39.0090--
Moisture Sensitivity Level1 (Unlimited)--
TypeDriver--
Mounting TypeSurface Mount--
Package / Case5-TSSOP, SC-70-5, SOT-353--
Voltage - Supply2.7V ~ 6V--
Operating Temperature-40°C ~ 150°C--
Supplier Device PackageSC-70-5--
Number of Drivers/Receivers1/0--

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Frequently asked questions

Yes. The onsemi FDG901D is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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