MCP1631VT-E/ML Equivalent & Substitute Parts

Part Overview

The MCP1631VT-E/ML is a Sepic Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC manufactured by Microchip Technology. This Power Management (PMIC) device operates as a transistor driver with single-output, single-phase topology in a 20-QFN (4x4) package. The part is Active status and widely used in applications requiring flexible voltage conversion across a 3V to 5.5V supply range. Substitute parts are identified when packaging or tape format differs while maintaining identical electrical and mechanical specifications.

Substiute Parts

MCP1631VT-E/ML

Microchip TechnologyIn Stock: 977MCP1631VT-E/ML Datasheet

Current PartRFQ

MCP1631V-E/ML

Microchip TechnologyIn Stock: 1142MCP1631V-E/ML Datasheet

DirectRFQ

MCP1631T-E/ML

Microchip TechnologyIn Stock: 29610MCP1631T-E/ML Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP1631VT-E/ML are identified based on identical electrical and mechanical specifications while differing only in packaging format. The substitution logic is based on the following key parameters that must remain constant:

• Base Product Number: MCP1631
• Topology: Sepic
• Output Configuration: Positive (single output, single phase)
• Voltage Supply Range: 3V ~ 5.5V
• Package Type: 20-VFQFN Exposed Pad (20-QFN 4x4)
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Control Features: Enable, Frequency Control, Ramp
• Compliance: ROHS3, REACH Unaffected, MSL 1

The MCP1631VT-E/ML is supplied in Tape & Reel (TR) format. Direct substitutes maintain identical specifications but are available in alternative packaging formats: Tube (MCP1631V-E/ML) and Cut Tape (CT) (MCP1631T-E/ML). These packaging variations do not affect electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MCP1631VT-E/ML, MCP1631V-E/ML, and MCP1631T-E/ML—are Active status products from Microchip Technology with identical electrical specifications and compliance certifications. Selection between these parts is determined solely by packaging and supply format requirements:

• MCP1631VT-E/ML (Tape & Reel): Suitable for high-volume automated assembly operations requiring continuous reel feeding.
• MCP1631V-E/ML (Tube): Appropriate for lower-volume applications or manual assembly processes.
• MCP1631T-E/ML (Cut Tape): Optimal for mixed-volume production or applications requiring flexible tape lengths without full reel commitment.

All parts maintain ROHS3 compliance, REACH Unaffected status, and MSL 1 rating. No electrical or functional differences exist between these variants.

Frequently Asked Questions (FAQ)

Q: Can MCP1631V-E/ML (Tube) be used as a direct replacement for MCP1631VT-E/ML (Tape & Reel)?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format only. Tube packaging is suitable for manual assembly or lower-volume applications, while Tape & Reel is optimized for automated pick-and-place assembly.

Q: What is the difference between MCP1631T-E/ML (Cut Tape) and MCP1631VT-E/ML (Tape & Reel)?

A: Both parts are functionally equivalent. Cut Tape format provides flexibility in tape length and is often used for applications requiring smaller quantities per order. Tape & Reel is standard for high-volume production runs.

Q: Are all three variants compliant with the same regulatory standards?

A: Yes. MCP1631VT-E/ML, MCP1631V-E/ML, and MCP1631T-E/ML all carry ROHS3 compliance and REACH Unaffected status. Moisture Sensitivity Level is 1 (Unlimited) for all variants.

Q: Does packaging format affect the electrical performance of the MCP1631 controller?

A: No. The 20-VFQFN Exposed Pad package and all electrical specifications remain identical across all three packaging formats. Performance is determined by the die and internal circuitry, not the external packaging method.

Q: Which variant should I select for automated assembly?

A: MCP1631VT-E/ML (Tape & Reel) is the standard choice for automated pick-and-place assembly operations. It is supplied in continuous reel format optimized for high-speed feeder systems.