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Alternatives to Infineon Technologies IR1155STRPBF

Infineon Technologies IR1155STRPBF and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

IR1155STRPBF compared against its qualified second sources
IR1155STRPBFInfineon TechnologiesUCC28180DTexas InstrumentsICE3PCS02GInfineon Technologies+2more
FFF CompatibilityThe UCC28180D shares the same 8-SOIC footprint but has completely different pinout assignments, meaning it cannot mount to the same electrical board layout without a redesign.Both components share an identical 8-pin SOIC surface-mount package and body dimensions.Provides robust Continuous Conduction Mode (CCM) PFC control with adjustable switching frequency and integrated safety protections that meet or exceed the original's capabilities.The ICE3PCS02G uses an 8-DSO footprint but features a different pin configuration, requiring PCB traces to be rerouted.Matches the physical 8-SOIC/8-DSO package outline and surface-mount standard of the IR1155STRPBF.Provides equivalent Continuous Conduction Mode (CCM) PFC control and excellent dynamic loop response.
AI Summary

IR1155STRPBF by Infineon Technologies: PFC IC Continuous Conduction (CCM) Adjustable 8-SOIC.

The UCC28180D is a highly popular, active CCM PFC controller that serves as the primary recommended alternative for the obsolete IR1155. It offers modern safety features, superior startup current performance, and a wider operating frequency range. However, a board layout revision is necessary because of its non-compatible pin configuration.

  • Widely recommended by Texas Instruments and major distributors as an IR1155 substitute
  • Wider switching frequency range of 18 kHz to 250 kHz compared to IR1155's 48 kHz to 200 kHz
  • Lower startup current of only 75 µA vs. 175 µA of the IR1155
  • Completely different pinout assignment requires a PCB layout redesign.
  • No dedicated Over-Voltage Protection (OVP) pin; OVP is instead integrated directly into the voltage feedback loop.

The ICE3PCS02G is recommended by Infineon as a replacement and provides similar high-efficiency CCM PFC operation. It includes useful features like integrated loop compensation to reduce design footprint, though it does require a board redesign due to pinout differences.

  • Officially recommended as an IR1155 replacement by the Infineon developer community
  • Features integrated digital voltage loop compensation to minimize the external component count
  • Includes a dedicated Over-Voltage Protection (OVP) loop for enhanced safety
  • Requires a board layout redesign to accommodate the completely different pin configuration.
  • The internal digital compensation loop may require slight tuning of surrounding filter networks compared to the analog compensation of the IR1155.
Lifecycle StatusObsoleteActiveUnknown
Market AvailabilityDiscontinuedIn stockUnknown
REACHREACHREACHUnknown
RoHSRoHSRoHSUnknown
DescriptionPFC IC Continuous Conduction (CCM) Adjustable 8-SOICPFC IC Continuous Conduction (CCM) 18kHz ~ 250kHz 8-SOICThe ICE3PCS02G is recommended by Infineon as a replacement and provides similar high-efficiency CCM PFC operation. It includes useful featur
ManufacturerInfineon TechnologiesTexas InstrumentsInfineon Technologies
TypePower Management (PMIC)Power Management (PMIC)Component
DatasheetOpenOpenN/A
Lead Time52 weeks16 weeksUnknown
Country of OriginCN, MY, PH--
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542.39.0070--
Moisture Sensitivity Level2 (1 Year)--
ModeContinuous Conduction (CCM)--
Mounting TypeSurface Mount--
Package / Case8-SOIC (0.154", 3.90mm Width)--
Voltage - Supply12V ~ 19V--
Current - Startup175 µA--
Frequency - SwitchingAdjustable--
Operating Temperature-25°C ~ 125°C--
Supplier Device Package8-SOIC--

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Frequently asked questions

Yes. The Infineon Technologies IR1155STRPBF 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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