UCD7230PWPR Equivalent & Substitute Parts

Part Overview

The UCD7230PWPR is a buck regulator positive output step-down DC-DC controller IC manufactured by Texas Instruments in a 20-HTSSOP package. This device functions as a transistor driver for step-down topology applications with a single output phase and synchronous rectifier capability. The UCD7230PWPR is classified as "Not For New Designs," indicating it has been superseded in Texas Instruments' product portfolio. Finding equivalent or substitute parts is necessary for legacy system support, production continuity, and design flexibility when the primary part becomes unavailable.

Substiute Parts

UCD7230PWPR

Texas InstrumentsIn Stock: 1613UCD7230PWPR Datasheet

Current PartRFQ

UCD7232RTJR

Texas InstrumentsIn Stock: 35291UCD7232RTJR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCD7230PWPR is evaluated based on the following critical parameters:

• Functional Topology: Step-down (buck) regulation with transistor driver output
• Supply Voltage Compatibility: Operating range must overlap or encompass 4.5V ~ 15.5V
• Output Configuration: Single-phase, positive output driver capability
• Switching Frequency: Support for up to 2MHz operation
• Synchronous Rectifier Support: Integrated or compatible with synchronous rectification
• Control Interface: Current limit and enable functionality
• Temperature Rating: -40°C ~ 125°C operating range
• Package Compatibility: Surface mount with thermal management capability
• Regulatory Compliance: ROHS3 and REACH compliance maintained

The UCD7232RTJR is identified as a manufacturer-recommended substitute. While it operates in a different package format (20-QFN versus 20-HTSSOP), it maintains functional compatibility through equivalent supply voltage range, temperature rating, and control feature set within the Texas Instruments power management controller family.

Parameter Comparison

Engineering Selection Recommendations

The UCD7232RTJR is the manufacturer-recommended substitute for the UCD7230PWPR. Both devices maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and environmental compatibility. The UCD7232RTJR carries an "Active" product status, providing long-term availability and support compared to the "Not For New Designs" classification of the UCD7230PWPR.

The primary design consideration is package transition from 20-PowerTSSOP to 20-QFN (4x4). This change requires PCB layout modification to accommodate the different footprint geometry and pin arrangement. The supply voltage operating ranges are compatible, with the UCD7232RTJR supporting 4.7V ~ 15V versus the UCD7230PWPR's 4.5V ~ 15.5V range. Both devices maintain identical temperature ratings and regulatory certifications.

Frequently Asked Questions (FAQ)

Q: Can the UCD7232RTJR directly replace the UCD7230PWPR without PCB modification?

A: No. The UCD7232RTJR uses a 20-QFN (4x4) package while the UCD7230PWPR uses a 20-PowerTSSOP package. PCB layout redesign is required to accommodate the different footprint, pin pitch, and thermal pad configuration.

Q: Are the supply voltage ranges compatible between these parts?

A: The ranges are substantially compatible. The UCD7230PWPR operates at 4.5V ~ 15.5V, while the UCD7232RTJR operates at 4.7V ~ 15V. Applications requiring operation below 4.7V must retain the UCD7230PWPR or identify alternative solutions.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the UCD7230PWPR and UCD7232RTJR are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 2 (1 Year).

Q: Why is the UCD7230PWPR marked "Not For New Designs"?

A: This classification indicates the part has been superseded in Texas Instruments' product roadmap. The UCD7232RTJR represents the active alternative within the product family and is recommended for new design implementations.

Q: What are the thermal management differences between the packages?

A: The 20-PowerTSSOP includes a thermal pad for enhanced heat dissipation, while the 20-QFN (4x4) features an exposed pad design. Both packages provide thermal management capability; however, PCB thermal design must be adapted to the specific package geometry.

Q: Are there functional differences in control features between these parts?

A: Both devices support current limit and enable control features. Detailed functional differences require review of the respective device datasheets to confirm pin-level compatibility and control signal requirements.