UCC28086P Equivalent & Substitute Parts

Part Overview

The UCC28086P 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 device functions as a transistor driver with integrated current limit and frequency control features. The UCC28086P is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

UCC28086P

Texas InstrumentsIn Stock: 852UCC28086P Datasheet

Current PartRFQ

UCC28086D

Texas InstrumentsIn Stock: 2115UCC28086D Datasheet

MFR RecommendedRFQ

UCC28084P

UnitrodeIn Stock: 2299UCC28084P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC28086P are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Core Electrical Parameters (Must Match):

• 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)

Mechanical Parameters (Package Compatibility):

• Package / Case: 8-DIP (0.300", 7.62mm) for direct pin-compatible substitution
• Mounting Type: Through Hole for direct PCB compatibility

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitutes are grouped into two categories:

1. MFR Recommended Substitute (UCC28086D): Same base product number with alternative packaging (8-SOIC surface mount). Electrical parameters are identical; mounting type differs.

2. Parametric Equivalent (UCC28084P): Different base product number (UCC28084 vs UCC28086) but identical electrical specifications and through-hole DIP packaging. Manufacturer is Unitrode (acquired by Texas Instruments).

Parameter Comparison

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement (Through-Hole DIP): Select UCC28084P. This part maintains identical electrical specifications and through-hole 8-DIP packaging, enabling direct substitution without PCB redesign. Both the UCC28086P and UCC28084P are classified as active products from Texas Instruments' product line, ensuring long-term availability and supply chain stability.

For Surface-Mount Applications or PCB Redesign: Select UCC28086D. This part is the manufacturer-recommended substitute, sharing the same base product number (UCC28086) and all electrical parameters. The transition from through-hole to surface-mount packaging (8-SOIC) requires PCB layout modification but offers improved thermal performance and reduced board space. UCC28086D is classified as active, providing superior availability compared to the obsolete UCC28086P.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can UCC28086D be used as a direct replacement for UCC28086P without PCB modification?

A: No. UCC28086D uses 8-SOIC surface-mount packaging, while UCC28086P uses 8-DIP through-hole packaging. Direct PCB substitution is not possible without layout redesign. For direct replacement without PCB changes, use UCC28084P.

Q: What is the difference between UCC28086P and UCC28084P?

A: Both parts share identical electrical specifications, supply voltage range (4.1V ~ 15V), switching frequency (200kHz), duty cycle (49%), and control features. The primary difference is the base product number designation (UCC28086 vs UCC28084). Both are manufactured by Texas Instruments and use 8-DIP through-hole packaging. UCC28084P is classified as active, providing better long-term availability.

Q: Why is UCC28086P listed as obsolete?

A: The UCC28086P has been superseded by active alternatives. Texas Instruments recommends UCC28086D (surface-mount variant) or equivalent parametric parts like UCC28084P for new designs and ongoing production.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. UCC28086D and UCC28084P are both ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Which substitute should I select for a new design?

A: For new through-hole designs, select UCC28084P. For new surface-mount designs or when board space is critical, select UCC28086D. Both are active products with stable supply chains.

Q: Can UCC28084P be used in applications originally designed for UCC28086P?

A: Yes. UCC28084P maintains all critical electrical parameters: output type (transistor driver), function (step-up/step-down), topology (half-bridge, push-pull), supply voltage (4.1V ~ 15V), switching frequency (200kHz), and control features (current limit, frequency control). Pin compatibility and through-hole packaging enable direct substitution.