UCC28084PW Equivalent & Substitute Parts

Part Overview

The UCC28084PW is a Half-Bridge, Push-Pull Regulator controller IC manufactured by Texas Instruments, designed for positive output Step-Up/Step-Down DC-DC conversion applications. This Surface Mount device in 8-TSSOP packaging operates across a 4.1V to 15V supply voltage range with a 200kHz switching frequency and integrated synchronous rectifier support.

The UCC28084PW carries a Last Time Buy product status, indicating end-of-life designation. Identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and ensuring uninterrupted production for applications currently utilizing this controller.

Substiute Parts

UCC28084PW

Texas InstrumentsIn Stock: 952UCC28084PW Datasheet

Current PartRFQ

UCC28084PWR

Texas InstrumentsIn Stock: 2465UCC28084PWR Datasheet

MFR RecommendedRFQ

UCC28086PW

Texas InstrumentsIn Stock: 2101UCC28086PW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UCC28084PW is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Output Type: Transistor Driver
• Function: Step-Up/Step-Down
• Output Configuration: Positive
• Topology: Half-Bridge, Push-Pull
• Number of Outputs: 2
• Output Phases: 1
• Voltage - Supply (Vcc/Vdd): 4.1V ~ 15V
• Frequency - Switching: 200kHz
• Duty Cycle (Max): 49%
• Synchronous Rectifier: Yes
• Control Features: Current Limit, Frequency Control
• Operating Temperature: -40°C ~ 85°C (TA)
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP (0.173", 4.40mm Width)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2 (1 Year)

The identified substitute parts maintain full electrical and mechanical compatibility with the UCC28084PW across all specified parameters. Substitution is valid for direct replacement in existing designs without circuit modification.

Parameter Comparison

Engineering Selection Recommendations

UCC28084PWR (MFR Recommended Substitute): This part is the manufacturer-recommended equivalent with Active product status, ensuring ongoing availability and support. The UCC28084PWR maintains identical electrical specifications and 8-TSSOP packaging. Selection of this part is appropriate for new designs and production continuity where the UCC28084PW is no longer available.

UCC28086PW (Parametric Equivalent): This part provides full parametric equivalence with Active product status and Tube packaging. The UCC28086PW is suitable for applications requiring the specified electrical and thermal characteristics. The alternative base product number (UCC28086 versus UCC28084) reflects a distinct device variant within the same functional class, maintaining all critical performance parameters.

Both substitute parts carry ROHS3 compliance and identical moisture sensitivity ratings, ensuring environmental and regulatory compatibility with the original UCC28084PW design.

Frequently Asked Questions (FAQ)

Q: Can UCC28084PWR be used as a direct replacement for UCC28084PW? A: Yes. The UCC28084PWR is electrically and mechanically identical to the UCC28084PW. Both devices share the same 8-TSSOP package, supply voltage range (4.1V ~ 15V), switching frequency (200kHz), and control features. The primary difference is product status: UCC28084PWR is Active, while UCC28084PW is Last Time Buy.

Q: What is the difference between UCC28084PWR and UCC28086PW? A: Both parts are parametric equivalents with identical electrical specifications, topology, and package. The difference lies in the base product number (UCC28084 versus UCC28086), indicating distinct device variants. Both maintain the same 200kHz switching frequency, 4.1V ~ 15V supply range, and Half-Bridge, Push-Pull topology.

Q: Are there any package differences between the substitute parts? A: UCC28084PW and UCC28086PW are supplied in Tube packaging. UCC28084PWR packaging is not specified in the provided data. All three parts use the 8-TSSOP (0.173", 4.40mm Width) case, ensuring mechanical compatibility on PCBs designed for the original part.

Q: Do the substitute parts meet the same compliance standards? A: Yes. Both UCC28084PWR and UCC28086PW are ROHS3 compliant with Moisture Sensitivity Level 2 (1 Year), matching the UCC28084PW. Both parts are REACH Unaffected and carry the same ECCN and HTSUS classifications.

Q: Can I use UCC28086PW in a design originally specified for UCC28084PW? A: Yes. The UCC28086PW maintains full parametric equivalence across all critical electrical and mechanical parameters: output type, function, topology, supply voltage, switching frequency, duty cycle, synchronous rectifier support, and control features. Direct substitution is valid without circuit modification.

Q: What should I consider when transitioning from UCC28084PW to an active substitute? A: Verify that the substitute part's Active product status aligns with your supply chain requirements. Both UCC28084PWR and UCC28086PW offer improved long-term availability compared to the Last Time Buy UCC28084PW. Confirm packaging preferences (Tube versus unspecified) match your procurement and assembly processes.