TPS2550DRVT Equivalent & Substitute Parts

Part Overview

The TPS2550DRVT is a Power Switch/Driver IC from Texas Instruments, configured as a 1:1 N-Channel high-side switch rated for 1.1A output current in a 6-WSON (2x2) package. This component is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product roadmap. Alternative equivalent and substitute parts are available from Texas Instruments and other manufacturers to support ongoing production requirements and new design initiatives.

Substiute Parts

TPS2550DRVT

Texas InstrumentsIn Stock: 2963TPS2550DRVT Datasheet

Current PartRFQ

TPS2552DRVR

Texas InstrumentsIn Stock: 65351TPS2552DRVR Datasheet

DirectRFQ

TPS2551DRVT

Texas InstrumentsIn Stock: 1295TPS2551DRVT Datasheet

Parametric EquivalentRFQ

MIC2019YML-TR

Microchip TechnologyIn Stock: 6060MIC2019YML-TR Datasheet

MFR RecommendedRFQ

RT9728AHGQW

Richtek USA Inc.In Stock: 9454RT9728AHGQW Datasheet

MFR RecommendedRFQ

RT9728AHZQW

Richtek USA Inc.In Stock: 35391RT9728AHZQW Datasheet

MFR RecommendedRFQ

RT9728ALZQW

Richtek USA Inc.In Stock: 15626RT9728ALZQW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPS2550DRVT is determined by the following critical parameters:

• Output Type & Configuration: High-side switch topology (N-Channel or P-Channel)
• Current Rating: Maximum output current capacity (1.1A minimum for direct replacement)
• Voltage Range: Load voltage compatibility (2.5V ~ 6.5V for N-Channel; 2.5V ~ 5.5V for P-Channel alternatives)
• Package: 6-WSON/6-WDFN (2x2) surface mount form factor
• Fault Protection: Current limiting, over-temperature, and UVLO capabilities
• Interface: On/Off control logic

Substitutes are grouped into two categories:

1. Direct Parametric Equivalents (Texas Instruments TPS2551DRVT): Identical electrical specifications and N-Channel topology
2. Functional Alternatives (TPS2552DRVR, MIC2019YML-TR, RT9728 series): Higher current ratings or alternative channel types with compatible voltage and protection features

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Specifications): TPS2551DRVT is the parametric equivalent to TPS2550DRVT, offering identical output current (1.1A), voltage range (2.5V ~ 6.5V), and on-resistance (100mOhm). Both parts share Not For New Designs status. Selection between these two is determined by packaging availability (Tape & Reel for both) and inventory requirements.

For Active Product Status (Ongoing Production): TPS2552DRVR from Texas Instruments is an active product offering increased current capacity (1.5A) while maintaining N-Channel topology and compatible voltage range. This part is suitable for new designs and provides higher current headroom than the original TPS2550DRVT.

For Alternative Channel Type (P-Channel Topology): MIC2019YML-TR (Microchip Technology), RT9728AHZQW, RT9728AHGQW, and RT9728ALZQW (Richtek USA Inc.) provide P-Channel high-side switch functionality. These alternatives are active products with enhanced current ratings (1.3A to 2A) and are suitable for applications where P-Channel topology is acceptable. Note that operating temperature range is reduced to -40°C ~ 85°C (TA) for these alternatives compared to the original part's -40°C ~ 150°C (TJ).

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original TPS2550DRVT.

Frequently Asked Questions (FAQ)

Q: Can TPS2551DRVT be used as a direct replacement for TPS2550DRVT? A: Yes. TPS2551DRVT is a parametric equivalent with identical output current (1.1A), voltage range (2.5V ~ 6.5V), on-resistance (100mOhm), and package (6-WDFN). Both are classified as Not For New Designs. Substitution is electrically and mechanically compatible.

Q: What is the difference between TPS2550DRVT and TPS2552DRVR? A: TPS2552DRVR provides higher output current (1.5A vs. 1.1A) while maintaining the same voltage range and on-resistance. TPS2552DRVR is an active product, whereas TPS2550DRVT is Not For New Designs. The packaging differs (Cut Tape & Digi-Reel® vs. Tape & Reel), but the 6-WDFN package footprint is identical.

Q: Can P-Channel alternatives (MIC2019YML-TR, RT9728 series) replace the N-Channel TPS2550DRVT? A: P-Channel alternatives are functionally compatible only if the circuit topology supports P-Channel high-side switching. These parts offer higher current ratings and active product status but operate at reduced maximum temperature (-40°C ~ 85°C vs. -40°C ~ 150°C). Voltage range is also reduced to 2.5V ~ 5.5V for P-Channel options. Circuit redesign may be required.

Q: What is the significance of the Not For New Designs status? A: This status indicates the manufacturer has discontinued active development and recommends using alternative parts for new designs. Existing inventory remains available for ongoing production support. For new projects, TPS2552DRVR or other active alternatives are recommended.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts (TPS2551DRVT, TPS2552DRVR, MIC2019YML-TR, RT9728AHZQW, RT9728AHGQW, RT9728ALZQW) are ROHS3 compliant and REACH unaffected, matching the compliance profile of TPS2550DRVT.

Q: What is the difference in MSL rating between TPS2550DRVT and RT9728 series? A: TPS2550DRVT has MSL 1 (Unlimited moisture sensitivity level), while RT9728 series parts have MSL 3 (168 Hours). MSL 3 requires controlled storage conditions and baking procedures before reflow soldering. This affects handling and storage protocols in manufacturing.

Q: Can TPS2552DRVR be used in applications requiring the full -40°C ~ 150°C temperature range? A: No. TPS2552DRVR operates at -40°C ~ 150°C (TJ), matching the original TPS2550DRVT. However, P-Channel alternatives (MIC2019YML-TR, RT9728 series) are limited to -40°C ~ 85°C (TA) and are not suitable for high-temperature applications.