TPS54335DRCR Equivalent & Substitute Parts

Part Overview

The TPS54335DRCR is a buck switching regulator IC from Texas Instruments' SWIFT™ series, designed for positive adjustable step-down voltage regulation with a 3A output capacity. This component operates across a 4.5V to 28V input range and delivers adjustable output from 0.8V to 25V, making it suitable for diverse power management applications requiring compact surface-mount solutions.

The TPS54335DRCR is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

TPS54335DRCR

Texas InstrumentsIn Stock: 1224TPS54335DRCR Datasheet

Current PartRFQ

TPS54335ADRCR

Texas InstrumentsIn Stock: 80277TPS54335ADRCR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS54335DRCR is determined by strict alignment of the following critical parameters:

• Topology & Function: Buck switching regulator with step-down capability
• Output Configuration: Positive adjustable voltage regulation
• Electrical Specifications: Input voltage range (4.5V to 28V), output voltage range (0.8V to 25V minimum), output current (3A), and switching frequency (50kHz to 1.5MHz)
• Package Compatibility: 10-VFDFN Exposed Pad (10-VSON 3x3) surface-mount package
• Compliance: ROHS3 compliant, MSL 2 rating
• Synchronous Rectification: Integrated synchronous rectifier required

The TPS54335ADRCR qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Both parts share identical topology, output specifications, input voltage range, switching frequency, package form factor, and compliance certifications. The substitute maintains full functional and physical compatibility with the original design.

Parameter Comparison

Engineering Selection Recommendations

The TPS54335ADRCR is the primary substitute for the obsolete TPS54335DRCR. Both parts are manufactured by Texas Instruments and share identical electrical specifications, package form factor, and compliance certifications. The substitute maintains ROHS3 compliance and MSL 2 rating, ensuring regulatory and environmental compatibility.

The TPS54335ADRCR offers the advantage of active product status, providing improved long-term availability and supply chain stability compared to the obsolete original part. The substitute's extended operating temperature range (-40°C to 150°C junction temperature versus -40°C to 85°C ambient for the original) provides additional thermal margin in demanding applications.

The maximum output voltage specification differs marginally (24V versus 25V), which is operationally insignificant for most applications within the adjustable output range. Both parts are pin-compatible and functionally interchangeable within the 10-VSON (3x3) package footprint.

Frequently Asked Questions (FAQ)

Q: Can the TPS54335ADRCR directly replace the TPS54335DRCR without PCB modifications?

A: Yes. Both parts use identical 10-VFDFN Exposed Pad packaging (10-VSON 3x3) and share the same pinout. No PCB layout changes are required for substitution.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The TPS54335DRCR is obsolete and no longer manufactured. The TPS54335ADRCR is actively produced by Texas Instruments, ensuring reliable supply availability and support for new designs or production continuity.

Q: Are there differences in electrical performance between these parts?

A: Both parts operate identically across all critical parameters: input voltage range (4.5V to 28V), output current (3A), switching frequency (50kHz to 1.5MHz), and synchronous rectification. The maximum output voltage differs by 1V (24V vs. 25V), which does not affect standard applications.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the TPS54335DRCR and TPS54335ADRCR are ROHS3 compliant with MSL 2 moisture sensitivity rating. Compliance certifications are identical.

Q: What is the operating temperature difference, and does it matter for my application?

A: The TPS54335DRCR operates at -40°C to 85°C ambient temperature, while the TPS54335ADRCR operates at -40°C to 150°C junction temperature. The substitute provides extended thermal performance, beneficial for high-temperature environments or applications with elevated power dissipation.

Q: Are there packaging or tape/reel options available for the substitute?

A: The TPS54335ADRCR is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and production-volume procurement.