UCD7230PWP Equivalent & Substitute Parts

Part Overview

The UCD7230PWP 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 single-output, single-phase buck topology applications with synchronous rectifier support and integrated current limit and enable control features.

The UCD7230PWP carries a "Not For New Designs" product status, indicating Texas Instruments has discontinued active development and support for this controller. Organizations requiring equivalent functionality for new designs or replacement applications must evaluate qualified substitute parts that maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

UCD7230PWP

Texas InstrumentsIn Stock: 1006UCD7230PWP Datasheet

Current PartRFQ

UCD7232RTJT

Texas InstrumentsIn Stock: 3310UCD7232RTJT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UCD7230PWP is constrained by the following critical parameters:

Electrical Compatibility Requirements:

• Supply voltage range must encompass or remain within 4.5V ~ 15.5V
• Operating temperature range must support -40°C ~ 125°C (TJ)
• Output driver configuration must support single-phase buck topology with synchronous rectifier capability
• Control features must include current limit and enable functions

Mechanical Compatibility Requirements:

• Surface mount technology required
• Package footprint must be compatible with 20-pin configurations
• Moisture sensitivity level must not exceed MSL 2

Regulatory & Compliance Requirements:

• RoHS3 compliance mandatory
• REACH unaffected status required

The UCD7232RTJT is identified as a manufacturer-recommended substitute. However, this part exhibits a different functional topology (half-bridge gate driver versus buck controller) and different package type (20-QFN versus 20-HTSSOP), indicating this substitution requires circuit-level design review and is not a direct pin-compatible replacement.

Parameter Comparison

Engineering Selection Recommendations

The UCD7230PWP "Not For New Designs" status necessitates evaluation of active alternatives for new product development. The UCD7232RTJT is listed as a manufacturer-recommended substitute and maintains compliance with RoHS3 and REACH requirements, with identical operating temperature range and MSL rating.

However, the UCD7232RTJT operates as a half-bridge gate driver with dual-channel synchronous configuration, whereas the UCD7230PWP functions as a single-phase buck controller. These represent different functional topologies requiring distinct circuit implementations. The package transition from 20-PowerTSSOP to 20-QFN (4x4) introduces additional mechanical and thermal considerations.

Selection of the UCD7232RTJT as a replacement requires full circuit redesign validation and thermal analysis specific to the target application. Direct pin-for-pin substitution is not supported.

Frequently Asked Questions (FAQ)

Q: Can the UCD7232RTJT be used as a direct replacement for the UCD7230PWP?

A: No. While both are Texas Instruments power management ICs with compatible supply voltage and temperature ranges, they implement different topologies. The UCD7230PWP is a buck controller; the UCD7232RTJT is a half-bridge gate driver. Circuit redesign is required.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Supply voltage range, operating temperature range, output driver configuration, and control feature set. The substitute must support the same functional topology (buck regulation with synchronous rectifier) and control capabilities (current limit, enable).

Q: Does the package change from 20-PowerTSSOP to 20-QFN affect compatibility?

A: Yes. Different package types have distinct footprints, thermal characteristics, and pin layouts. PCB redesign is necessary when transitioning between these packages.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the UCD7230PWP and UCD7232RTJT are RoHS3 compliant and REACH unaffected, with identical MSL 2 ratings.

Q: Why is the UCD7230PWP marked "Not For New Designs"?

A: This status indicates Texas Instruments has concluded active support and development for this part number. New designs should utilize active alternatives to ensure long-term supply availability and manufacturer support.