TPS77401MDGKREP Equivalent & Substitute Parts

Part Overview

The TPS77401MDGKREP is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This Surface Mount device delivers 250mA output current in an 8-VSSOP package and is classified as Active product status. The regulator features adjustable output voltage ranging from 1.5V to 5.5V with integrated protection mechanisms including over-current, over-temperature, and reverse polarity protection.

Identifying equivalent and substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or specific application requirements that may benefit from alternative electrical or mechanical characteristics within compatible parameter ranges.

Substiute Parts

TPS77401MDGKREP

Texas InstrumentsIn Stock: 2201TPS77401MDGKREP Datasheet

Current PartRFQ

CAT6201VP2-GT3

onsemiIn Stock: 8516CAT6201VP2-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS77401MDGKREP are identified based on functional equivalence within the linear voltage regulator category. The substitution logic is governed by the following critical parameters:

Output Configuration and Type: Both the main part and substitutes must provide positive adjustable output voltage regulation with a single output channel.

Voltage Operating Range: Substitute parts must accommodate the input voltage specification (maximum 10V) and output voltage range (1.5V to 5.5V minimum/maximum).

Current Delivery Capability: Output current rating must meet or exceed 250mA to ensure functional compatibility in the target application.

Control and Protection Features: Substitutes must include Enable control and protection against over-current and over-temperature conditions.

Package and Mounting: Surface Mount technology with compatible pinout and thermal characteristics.

Compliance and Status: Active or equivalent product status with ROHS3 compliance and MSL rating of 1.

Parameter Comparison

Engineering Selection Recommendations

The TPS77401MDGKREP maintains Active product status with full ROHS3 compliance and MSL Level 1 rating, making it the preferred choice for new designs and long-term supply chain stability.

The CAT6201VP2-GT3 is classified as Obsolete and should be considered only for legacy system maintenance or when existing inventory is available. While this substitute provides higher output current (300mA versus 250mA) and extended input voltage range (14.6V maximum), its obsolete status presents long-term availability risks. The CAT6201VP2-GT3 also lacks reverse polarity protection present in the TPS77401MDGKREP and operates within a narrower temperature range (-40°C to 125°C versus -55°C to 125°C).

Both devices maintain ROHS3 compliance and MSL Level 1 ratings. Package differences exist between the 8-VSSOP of the TPS77401MDGKREP and the 8-WFDFN Exposed Pad of the CAT6201VP2-GT3, requiring PCB layout verification for thermal and electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the CAT6201VP2-GT3 directly replace the TPS77401MDGKREP in existing designs?

A: Direct replacement requires verification of package compatibility and PCB layout. The CAT6201VP2-GT3 uses an 8-WFDFN Exposed Pad package versus the 8-VSSOP package of the TPS77401MDGKREP. Pinout compatibility and thermal pad requirements must be confirmed before implementation. The CAT6201VP2-GT3 lacks reverse polarity protection, which may impact circuit protection strategy.

Q: What are the key differences in electrical performance between these parts?

A: The CAT6201VP2-GT3 provides higher output current capability (300mA versus 250mA) and extended input voltage range (14.6V maximum versus 10V maximum). The TPS77401MDGKREP offers superior temperature range coverage (-55°C to 125°C versus -40°C to 125°C) and includes reverse polarity protection. PSRR performance is comparable across the frequency range specified.

Q: Why is the CAT6201VP2-GT3 listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. This classification affects long-term availability and supply chain planning. For new designs, the Active status TPS77401MDGKREP is the recommended selection.

Q: Are both parts compliant with current regulatory requirements?

A: Both the TPS77401MDGKREP and CAT6201VP2-GT3 maintain ROHS3 compliance and MSL Level 1 ratings, meeting current regulatory standards for electronic components.

Q: What package considerations apply when selecting between these regulators?

A: The TPS77401MDGKREP uses 8-TSSOP/8-MSOP packaging (0.118" width, 3.00mm), while the CAT6201VP2-GT3 uses 8-WFDFN with exposed pad. Package selection impacts PCB footprint design, thermal management strategy, and manufacturing process compatibility. Thermal pad utilization differs between packages and must be evaluated for specific application thermal requirements.