TPS2550DBVT Equivalent & Substitute Parts

Part Overview

The TPS2550DBVT is a Power Management Integrated Circuit (PMIC) functioning as a general-purpose power switch with N-Channel output configuration. Manufactured by Texas Instruments, this device operates as a 1:1 high-side switch rated for 1.1A maximum output current in a SOT-23-6 surface mount package. The product carries a "Not For New Designs" status, necessitating identification of equivalent and substitute components for ongoing applications and new design considerations.

Substiute Parts

TPS2550DBVT

Texas InstrumentsIn Stock: 3625TPS2550DBVT Datasheet

Current PartRFQ

TPS2551DBVR

Texas InstrumentsIn Stock: 100308TPS2551DBVR Datasheet

Parametric EquivalentRFQ

TPS2551DBVT

Texas InstrumentsIn Stock: 3366TPS2551DBVT Datasheet

Parametric EquivalentRFQ

TPS2551QDBVRQ1

Texas InstrumentsIn Stock: 889086TPS2551QDBVRQ1 Datasheet

Parametric EquivalentRFQ

MIC2009A-1YM6-TR

Microchip TechnologyIn Stock: 26187MIC2009A-1YM6-TR Datasheet

MFR RecommendedRFQ

MIC2009A-2YM6-TR

Microchip TechnologyIn Stock: 3497MIC2009A-2YM6-TR Datasheet

MFR RecommendedRFQ

MIC2019A-1YM6-TR

Microchip TechnologyIn Stock: 3206MIC2019A-1YM6-TR Datasheet

MFR RecommendedRFQ

MIC2019A-2YM6-TR

Microchip TechnologyIn Stock: 2366MIC2019A-2YM6-TR Datasheet

MFR RecommendedRFQ

MIC2019YM6-TR

Microchip TechnologyIn Stock: 6254MIC2019YM6-TR Datasheet

MFR RecommendedRFQ

NCP380HSNAJAAT1G

onsemiIn Stock: 437327NCP380HSNAJAAT1G Datasheet

MFR RecommendedRFQ

NCP380LSNAJAAT1G

onsemiIn Stock: 62427NCP380LSNAJAAT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS2550DBVT is determined by the following critical parameters:

Primary Substitution Criteria:

• Output Type: N-Channel (restricts substitutes to N-Channel devices only)
• Output Configuration: High Side
• Package / Case: SOT-23-6 (mechanical and electrical compatibility)
• Voltage - Load: 2.5V ~ 6.5V (operating voltage range)
• Current - Output (Max): 1.1A minimum (current handling capability)
• Rds On (Typ): 85mOhm or lower (on-resistance specification)
• Fault Protection: Current Limiting (Adjustable), Over Temperature, UVLO

Substitute Categories:

Category 1: Direct Parametric Equivalents (Texas Instruments N-Channel)

• TPS2551DBVR
• TPS2551DBVT
• TPS2551QDBVRQ1 (Automotive Grade, AEC-Q100 qualified)

These devices maintain identical electrical specifications and package format, differing only in packaging method (Tape & Reel vs. Cut Tape) or automotive qualification grade.

Category 2: Functional Alternatives (Different Channel Type)

• MIC2009A-1YM6-TR (Microchip, P-Channel)
• MIC2009A-2YM6-TR (Microchip, P-Channel)
• MIC2019A-1YM6-TR (Microchip, P-Channel)
• MIC2019A-2YM6-TR (Microchip, P-Channel)
• MIC2019YM6-TR (Microchip, P-Channel, 2A rated)
• NCP380HSNAJAAT1G (onsemi, P-Channel)
• NCP380LSNAJAAT1G (onsemi, P-Channel)

These alternatives employ P-Channel output configuration and require circuit topology modification. They are listed as manufacturer-recommended substitutes but necessitate design review due to channel type difference.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (N-Channel, No Circuit Modification Required):

Select TPS2551DBVR, TPS2551DBVT, or TPS2551QDBVRQ1 when N-Channel output configuration is mandatory. These devices maintain identical electrical performance and package compatibility with the TPS2550DBVT. The TPS2551QDBVRQ1 variant includes AEC-Q100 automotive qualification and is suitable for automotive applications requiring formal qualification documentation.

For Active Product Status Requirement:

All Microchip Technology (MIC2009A, MIC2019A, MIC2019YM6-TR) and onsemi (NCP380HSNAJAAT1G, NCP380LSNAJAAT1G) alternatives carry "Active" product status, ensuring continued manufacturing support and availability. These options are appropriate for new designs or applications requiring long-term component availability assurance.

For Voltage Range Consideration:

The TPS2550DBVT operates across 2.5V to 6.5V load voltage. Microchip and onsemi alternatives operate within 2.5V to 5.5V, representing a reduced upper voltage limit. Applications requiring operation above 5.5V must retain N-Channel Texas Instruments devices.

For Current Capacity:

The TPS2550DBVT is rated for 1.1A maximum output current. Microchip MIC2009A and MIC2019A variants are rated for 900mA, representing a 18% reduction in current capacity. The MIC2019YM6-TR provides 2A capacity, exceeding the original specification. onsemi NCP380 variants feature adjustable current limiting, requiring application-specific configuration.

For Operating Temperature:

The TPS2550DBVT operates to 150°C junction temperature. Microchip and onsemi alternatives operate to 85°C ambient temperature maximum, representing a significant thermal operating range reduction. Applications requiring extended temperature operation must use Texas Instruments N-Channel devices.

Frequently Asked Questions (FAQ)

Q: Can I use a P-Channel substitute in place of the N-Channel TPS2550DBVT?

A: P-Channel substitutes (Microchip MIC2009A, MIC2019A series, and onsemi NCP380 series) require circuit topology modification. N-Channel and P-Channel devices have inverted gate drive logic and different load connection configurations. Direct pin-for-pin replacement is not possible without redesigning the gate drive circuit and load connection topology.

Q: What is the difference between TPS2551DBVR and TPS2551DBVT packaging?

A: Both devices are electrically identical. TPS2551DBVR is supplied in Cut Tape (CT) & Digi-Reel® format, while TPS2551DBVT is supplied in Tape & Reel (TR) format. Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Why does the TPS2551QDBVRQ1 have higher inventory availability?

A: The TPS2551QDBVRQ1 includes AEC-Q100 automotive qualification, making it suitable for automotive applications. Higher inventory reflects broader market demand across automotive and industrial segments.

Q: Can I use MIC2019YM6-TR as a direct replacement for increased current capacity?

A: MIC2019YM6-TR provides 2A output current capacity compared to the TPS2550DBVT's 1.1A. However, this is a P-Channel device requiring circuit modification. Additionally, it operates to 85°C ambient maximum versus the TPS2550DBVT's 150°C junction temperature, and its voltage range is limited to 2.5V ~ 5.5V.

Q: What does "Not For New Designs" status mean for the TPS2550DBVT?

A: This status indicates Texas Instruments has discontinued active development and marketing of this product line. Existing inventory remains available, but the manufacturer recommends using alternative products for new designs. The TPS2551 series represents the recommended successor product family.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the TPS2550DBVT's environmental compliance status.

Q: What is the significance of Moisture Sensitivity Level (MSL) differences?

A: The TPS2550DBVT carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Microchip MIC2009A-1YM6-TR carries MSL 2 (1 Year), requiring controlled storage conditions. Other alternatives carry MSL 1. MSL rating affects component storage, handling, and reflow process requirements.