MP62550DGT-LF-Z Equivalent & Substitute Parts

Part Overview

The MP62550DGT-LF-Z is an active power switch IC from Monolithic Power Systems Inc., classified as a Power Management (PMIC) component. This N-Channel power switch operates as a 1:1 high-side driver with integrated current limiting, over-temperature protection, and under-voltage lockout (UVLO). The device is designed for general-purpose switching applications requiring controlled slew rate and status flag feedback. As an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, the MP62550DGT-LF-Z remains in production. Substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence to support design flexibility and supply chain continuity.

Substiute Parts

MP62550DGT-LF-Z

Monolithic Power Systems Inc.In Stock: 1731MP62550DGT-LF-Z Datasheet

Current PartRFQ

MP62551DGT-LF-P

Monolithic Power Systems Inc.In Stock: 2673MP62551DGT-LF-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP62550DGT-LF-Z are identified based on strict electrical and mechanical parameter matching. The primary substitution criterion is functional equivalence across the following parameters:

• Output current capability: 1.5A maximum
• Load voltage range: 2.5V ~ 5.5V
• Output configuration: High-side N-Channel, 1:1 ratio
• Fault protection features: Current limiting (adjustable), over-temperature, UVLO
• Operating temperature range: -40°C ~ 85°C
• Package type: 6-WDFN Exposed Pad (2x2)
• Surface mount compatibility
• Active product status with RoHS3 compliance

The MP62551DGT-LF-P meets all these criteria and is classified as a parametric equivalent. The primary difference is the on-resistance specification (88mOhm vs. 100mOhm) and packaging format (Cut Tape & Digi-Reel® vs. Tape & Reel), both of which remain within acceptable substitution parameters for this device category.

Parameter Comparison

Engineering Selection Recommendations

Both the MP62550DGT-LF-Z and MP62551DGT-LF-P are active products with full RoHS3 compliance and unlimited moisture sensitivity ratings, making them suitable for production designs. The MP62551DGT-LF-P offers improved on-resistance performance (88mOhm vs. 100mOhm), which reduces power dissipation in switching applications. This lower on-resistance may provide thermal and efficiency benefits in current-limited or thermally constrained designs.

Selection between these parts should be based on packaging availability and supply chain requirements. The MP62550DGT-LF-Z is supplied in Tape & Reel format, while the MP62551DGT-LF-P is available in Cut Tape & Digi-Reel® format. Both parts maintain identical electrical functionality, fault protection mechanisms, and operating temperature specifications. The choice between them does not affect circuit design or PCB layout, as both use the same 6-WDFN Exposed Pad package footprint.

Frequently Asked Questions (FAQ)

Q: Can MP62551DGT-LF-P be used as a direct replacement for MP62550DGT-LF-Z?

A: Yes. Both parts are functionally equivalent across all critical electrical parameters: 1.5A output current, 2.5V–5.5V load voltage range, high-side N-Channel configuration, and identical fault protection features. The package footprint is identical (6-WDFN Exposed Pad, 2x2mm), requiring no PCB modifications. The lower on-resistance of the MP62551DGT-LF-P (88mOhm) is a performance improvement that does not affect compatibility.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging?

A: Tape & Reel (TR) and Cut Tape & Digi-Reel® (CT) are packaging and delivery formats that do not affect the electrical or mechanical properties of the component. Tape & Reel is typically used for high-volume automated assembly, while Cut Tape & Digi-Reel® offers flexibility for lower-volume or mixed-component orders. The actual IC remains identical.

Q: Are there any thermal or performance differences between these parts?

A: The MP62551DGT-LF-P has a lower typical on-resistance (88mOhm vs. 100mOhm), resulting in reduced power dissipation and lower junction temperature during operation. This represents a performance improvement with no negative trade-offs. Both parts operate across the same temperature range (-40°C to 85°C) and maintain identical protection features.

Q: Do both parts support the same fault protection mechanisms?

A: Yes. Both the MP62550DGT-LF-Z and MP62551DGT-LF-P include adjustable current limiting, over-temperature protection, and under-voltage lockout (UVLO). Slew rate control and status flag outputs are also present on both devices.

Q: Are there any compliance or certification differences?

A: No. Both parts are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (unlimited) moisture sensitivity ratings. Both are classified as active products with no end-of-life announcements.