TPS5633PWPR Equivalent & Substitute Parts

Part Overview

The TPS5633PWPR is a Buck Regulator Positive Output Step-Down DC-DC Controller IC manufactured by Texas Instruments in a 28-PowerTSSOP package. This component functions as a transistor driver for step-down topology applications with a single output phase and positive output configuration. The part is classified as Obsolete, making identification of equivalent and substitute components essential for ongoing design support and procurement planning.

Substiute Parts

TPS5633PWPR

Texas InstrumentsIn Stock: 2242TPS5633PWPR Datasheet

Current PartRFQ

TPS548A20RVER

Texas InstrumentsIn Stock: 62691TPS548A20RVER Datasheet

MFR RecommendedRFQ

TPS5210PWPR

Texas InstrumentsIn Stock: 4479TPS5210PWPR Datasheet

Parametric EquivalentRFQ

TPS5633PWP

Texas InstrumentsIn Stock: 1116TPS5633PWP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS5633PWPR is determined by the following critical parameters:

Primary Substitution Criteria:

• Function: Step-Down (Buck topology)
• Output Type: Transistor Driver
• Output Configuration: Positive
• Number of Outputs: 1
• Voltage - Supply (Vcc/Vdd): 11.4V ~ 13V
• Synchronous Rectifier: Yes
• Package / Case: 28-PowerTSSOP
• Operating Temperature Range: 0°C ~ 125°C (TJ)

Substitute Categories:

Direct Equivalent (Same Base Product): TPS5633PWP is a direct equivalent differing only in packaging format (Tube vs. Cut Tape). This part maintains identical electrical specifications and package geometry.

Parametric Equivalent (Matching Core Specifications): TPS5210PWPR matches all critical electrical and mechanical parameters including supply voltage range, synchronous rectifier capability, control features, and package type. Product status differs (Last Time Buy vs. Obsolete).

Manufacturer Recommended Alternative (Enhanced Capability): TPS548A20RVER is designated as the manufacturer-recommended upgrade path. While it maintains buck topology and positive output configuration, it operates with a different supply voltage range (1.5V ~ 20V) and offers adjustable output voltage capability, representing a functional evolution from the fixed-output controller architecture.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Pin-Compatible, Identical Specifications): TPS5633PWP serves as a direct equivalent when packaging format change from Cut Tape to Tube is acceptable. Both parts maintain Obsolete and Last Time Buy status classifications, indicating limited future availability.

For Parametric Equivalence (Same Electrical Performance, Identical Package): TPS5210PWPR provides full parametric compatibility with identical supply voltage range, synchronous rectifier implementation, and package geometry. The addition of Current Limit control feature provides enhanced protection capability. Last Time Buy status indicates this part remains available for a defined period.

For Long-Term Design Continuity (Active Product Status): TPS548A20RVER is the manufacturer-recommended alternative offering Active product status and extended availability. This part requires design re-evaluation due to package change (28-VFQFN vs. 28-PowerTSSOP), different supply voltage range (1.5V ~ 20V), and adjustable output voltage architecture. Extended operating temperature range (-40°C ~ 125°C) provides broader environmental capability. Absence of synchronous rectifier requires circuit topology assessment.

All substitute candidates maintain ROHS3 compliance and identical MSL ratings, ensuring regulatory and handling consistency.

Frequently Asked Questions (FAQ)

Q: Can TPS5633PWP be used as a direct replacement for TPS5633PWPR? A: Yes. TPS5633PWP is electrically and mechanically identical to TPS5633PWPR. The only difference is packaging format (Tube vs. Cut Tape). Both parts are classified as Obsolete or Last Time Buy, indicating limited future procurement windows.

Q: Is TPS5210PWPR a suitable substitute? A: Yes. TPS5210PWPR matches all critical electrical parameters including 11.4V ~ 13V supply voltage, synchronous rectifier capability, single-phase buck topology, and 28-PowerTSSOP package geometry. It is pin-compatible and functionally equivalent. Product status is Last Time Buy.

Q: Why is TPS548A20RVER listed as a manufacturer-recommended alternative? A: TPS548A20RVER is an Active product offering long-term availability and represents Texas Instruments' current technology generation for buck regulation. However, it requires design changes: different package (28-VFQFN), wider supply voltage range (1.5V ~ 20V), adjustable output voltage, and no synchronous rectifier. Use this part only if circuit topology can be re-evaluated and PCB layout modified.

Q: What is the difference between "Parametric Equivalent" and "Manufacturer Recommended"? A: Parametric Equivalent parts (TPS5210PWPR) maintain identical electrical specifications and package, enabling direct substitution. Manufacturer Recommended parts (TPS548A20RVER) represent newer technology with enhanced features but require design and layout modifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. TPS5633PWPR, TPS5633PWP, TPS5210PWPR, and TPS548A20RVER are all ROHS3 compliant with MSL rating of 2 (1 Year).

Q: What is the impact of package change from 28-PowerTSSOP to 28-VFQFN? A: Package geometry differs significantly. 28-PowerTSSOP uses a different footprint than 28-VFQFN Exposed Pad. PCB layout, thermal management, and component placement require complete re-design. This change is not suitable for direct board-level substitution.

Q: Which substitute should be selected for new designs? A: TPS548A20RVER is the only Active product and is recommended for new designs. It provides long-term availability and manufacturer support. Existing designs using TPS5633PWPR should evaluate TPS5210PWPR for immediate compatibility or plan migration to TPS548A20RVER with circuit re-evaluation.