UCC28C50DR Equivalent & Substitute Parts

Part Overview

The UCC28C50DR is an industrial-grade, 30-V low-power current-mode PWM controller manufactured by Texas Instruments. This device functions as a Buck, Boost, Flyback, Forward Converter, and SEPIC regulator with positive output capability. The UCC28C50DR is classified as an Active product and is available in 8-SOIC surface mount packaging. The controller integrates transistor driver output with comprehensive control features including current limit, dead time control, enable, frequency control, and soft start functionality. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the product family, ensuring functional interchangeability in DC-DC converter applications.

Substiute Parts

UCC28C50DR

Texas InstrumentsIn Stock: 3055UCC28C50DR Datasheet

Current PartRFQ

UCC28C52DR

Texas InstrumentsIn Stock: 3138UCC28C52DR Datasheet

Parametric EquivalentRFQ

UCC28C53DR

Texas InstrumentsIn Stock: 2642UCC28C53DR Datasheet

Parametric EquivalentRFQ

UCC28C56LDR

Texas InstrumentsIn Stock: 3258UCC28C56LDR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the UCC28C50DR are identified based on strict parametric equivalence within the Texas Instruments UCC28C5x controller family. All substitute parts maintain identical electrical specifications across the following critical parameters:

Electrical Equivalence Criteria:

• Supply voltage rating: 30V
• Switching frequency: 1MHz
• Duty cycle maximum: 100%
• Output configuration: Positive
• Topology support: Buck, Boost, Flyback, Forward Converter, SEPIC
• Control feature set: Current Limit, Dead Time Control, Enable, Frequency Control, Soft Start
• Synchronous rectifier and clock sync capability: Present

Mechanical Equivalence Criteria:

• Package type: 8-SOIC (0.154", 3.90mm Width)
• Mounting type: Surface Mount
• Supplier device package: 8-SOIC

Compliance Equivalence Criteria:

• RoHS3 Compliance
• Moisture Sensitivity Level: 1 (Unlimited)
• Product Status: Active

The substitute parts UCC28C52DR, UCC28C53DR, and UCC28C56LDR are functionally interchangeable with the UCC28C50DR within applications requiring these specified parameters.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed—UCC28C52DR, UCC28C53DR, and UCC28C56LDR—are classified as Active products from Texas Instruments and maintain full compliance with ROHS3 standards and REACH regulations. Each part carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling.

Selection among these equivalent parts is based on inventory availability and application-specific requirements within the specified electrical and mechanical parameters. All parts are suitable for industrial applications requiring 30-V supply operation, 1-MHz switching frequency, and multi-topology DC-DC converter control. The identical package footprint (8-SOIC, 0.154" width) and surface mount configuration ensure direct board-level compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: What determines if a part is a true substitute for the UCC28C50DR?

A: A part qualifies as a substitute when it maintains identical electrical parameters (30V supply, 1MHz switching frequency, 100% duty cycle, positive output configuration, multi-topology support, and identical control features) and mechanical parameters (8-SOIC package, surface mount, 3.90mm width). All substitute parts must also maintain Active product status and ROHS3 compliance.

Q: Can UCC28C52DR, UCC28C53DR, and UCC28C56LDR be used interchangeably with UCC28C50DR?

A: Yes. These parts are parametrically equivalent across all electrical specifications, control features, operating temperature range, and package configuration. They are functionally interchangeable within applications designed for the UCC28C50DR.

Q: Are there any package or pinout differences between these substitute parts?

A: No. All parts use the identical 8-SOIC package with 0.154" width and 3.90mm physical dimensions. Pinout and package footprint are identical, enabling direct substitution without PCB redesign.

Q: What is the significance of the MSL rating for these parts?

A: The MSL 1 (Unlimited) rating indicates these parts have no moisture sensitivity restrictions. They can be stored and handled without special moisture control measures, simplifying supply chain management and component handling procedures.

Q: Are all substitute parts compliant with current environmental regulations?

A: Yes. All parts are ROHS3 Compliant and REACH Unaffected, meeting current industrial and commercial environmental standards for electronic components.

Q: What inventory levels are available for each part?

A: UCC28C50DR: 3038 Pcs; UCC28C52DR: 3035 Pcs; UCC28C53DR: 2567 Pcs; UCC28C56LDR: 3195 Pcs. All parts are available as new original stock in Tape & Reel packaging.