UCC2580N-3 Equivalent & Substitute Parts

Part Overview

The UCC2580N-3 is a Forward Converter Regulator controller IC manufactured by Texas Instruments, designed for positive or negative output step-up/step-down DC-DC conversion applications. This device operates as a transistor driver with integrated control features including enable, ramp, and soft start functionality. The UCC2580N-3 is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Substitute parts must maintain functional compatibility while meeting the same electrical specifications and operating requirements.

Substiute Parts

UCC2580N-3

Texas InstrumentsIn Stock: 880UCC2580N-3 Datasheet

Current PartRFQ

UC2825N

Texas InstrumentsIn Stock: 3473UC2825N Datasheet

MFR RecommendedRFQ

UCC2580D-3

Texas InstrumentsIn Stock: 2005UCC2580D-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC2580N-3 are identified based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Topology: Forward Converter
• Output Configuration: Positive or Negative
• Function: Step-Up/Step-Down
• Number of Outputs: 2
• Output Type: Transistor Driver
• Voltage Supply Range: 8.5V ~ 16V
• Switching Frequency: 400kHz
• Maximum Duty Cycle: 66%
• Control Features: Enable, Ramp, Soft Start
• Operating Temperature Range: -40°C ~ 85°C (TA)
• Package Compatibility: 16-DIP or equivalent surface mount alternative

Identified Substitutes:

1. UC2825N - Manufacturer recommended substitute with expanded topology support and higher supply voltage range. Maintains core forward converter functionality with additional topology options (Boost, Flyback, Full-Bridge, Half-Bridge, Push-Pull). Active product status with higher inventory availability.

2. UCC2580D-3 - Direct functional equivalent with identical electrical specifications. Differs only in mounting type (Surface Mount 16-SOIC vs. Through Hole 16-DIP). Active product status with higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

UCC2580D-3 Selection: Select UCC2580D-3 when board redesign for surface mount assembly is feasible. This part maintains identical electrical specifications and control feature set as the UCC2580N-3. Active product status ensures long-term availability and supply chain stability. ROHS3 compliance and identical operating temperature range support direct functional replacement in forward converter applications requiring positive or negative output configurations.

UC2825N Selection: Select UC2825N when through-hole mounting is required and the application can accommodate expanded topology support. This part supports forward converter operation with additional topology flexibility (Boost, Flyback, Full-Bridge, Half-Bridge, Push-Pull). Extended supply voltage range (8.4V ~ 30V) and higher maximum duty cycle (80%) provide design flexibility for applications with varying input voltage requirements. Active product status and higher inventory availability support production continuity. Note that output configuration is limited to positive output only, which may restrict use in applications requiring negative output capability.

Both substitute parts are ROHS3 compliant and manufactured by Texas Instruments, maintaining compliance with environmental and regulatory requirements equivalent to the obsolete UCC2580N-3.

Frequently Asked Questions (FAQ)

Q: Can UC2825N directly replace UCC2580N-3 in all applications? A: UC2825N supports forward converter topology with identical control features and operating temperature range. However, UC2825N output configuration is limited to positive output only, while UCC2580N-3 supports positive or negative output. Applications requiring negative output capability must use UCC2580D-3 instead.

Q: What is the primary difference between UCC2580D-3 and UCC2580N-3? A: UCC2580D-3 and UCC2580N-3 are electrically identical. The difference is packaging: UCC2580N-3 uses 16-DIP through-hole mounting, while UCC2580D-3 uses 16-SOIC surface mount. Both maintain identical voltage supply range (8.5V ~ 16V), switching frequency (400kHz), duty cycle (66%), and control features.

Q: Is UC2825N suitable for applications with input voltages above 16V? A: Yes. UC2825N supports supply voltage range of 8.4V ~ 30V, making it suitable for applications with higher input voltages. UCC2580N-3 and UCC2580D-3 are limited to 8.5V ~ 16V supply range.

Q: Can I use UCC2580D-3 as a drop-in replacement for UCC2580N-3? A: UCC2580D-3 provides electrical equivalence but requires board redesign due to different package type (16-SOIC surface mount vs. 16-DIP through hole). Pinout compatibility must be verified during layout redesign.

Q: Are all three parts RoHS compliant? A: Yes. UCC2580N-3, UC2825N, and UCC2580D-3 are all ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: Which substitute part has better long-term availability? A: Both UC2825N and UCC2580D-3 have active product status with higher inventory levels (3400 Pcs and 1900 Pcs respectively) compared to UCC2580N-3 (782 Pcs, obsolete status), ensuring superior supply chain stability for production continuity.