MCP1631VT-E/SS Equivalent & Substitute Parts

Part Overview

The MCP1631VT-E/SS is a Sepic Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC manufactured by Microchip Technology. This 20-SSOP surface mount device operates as a transistor driver for single-output positive topology applications with supply voltage range of 3V to 5.5V. The part is Active status and widely used in power management applications requiring flexible voltage conversion. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling component interchangeability for procurement flexibility and inventory management.

Substiute Parts

MCP1631VT-E/SS

Microchip TechnologyIn Stock: 1301MCP1631VT-E/SS Datasheet

Current PartRFQ

MCP1631V-E/SS

Microchip TechnologyIn Stock: 1434MCP1631V-E/SS Datasheet

DirectRFQ

MCP1631T-E/SS

Microchip TechnologyIn Stock: 1294MCP1631T-E/SS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP1631VT-E/SS are identified based on strict electrical and mechanical parameter equivalence. The substitution logic is based on the following criteria:

Electrical Parameters (Must Match):

• Topology: Sepic
• Output Type: Transistor Driver
• Function: Step-Up/Step-Down
• Output Configuration: Positive
• Number of Outputs: 1
• Voltage - Supply (Vcc/Vdd): 3V ~ 5.5V
• Operating Temperature: -40°C ~ 125°C (TJ)
• Control Features: Enable, Frequency Control, Ramp

Mechanical Parameters (Must Match):

• Package / Case: 20-SSOP (0.209", 5.30mm Width)
• Mounting Type: Surface Mount
• Base Product Number: MCP1631

Compliance Parameters (Must Match):

• Manufacturer: Microchip Technology
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Product Status: Active

The identified substitutes differ only in packaging format (Tape & Reel versus Tube), which does not affect electrical or mechanical compatibility. All substitutes maintain identical electrical performance and physical footprint characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MCP1631VT-E/SS, MCP1631V-E/SS, and MCP1631T-E/SS—are Active status products from Microchip Technology with identical electrical specifications and physical footprints. Selection between these parts is determined by packaging and supply chain requirements:

MCP1631VT-E/SS (Tape & Reel): Primary choice for high-volume automated assembly operations requiring continuous reel feeding.

MCP1631V-E/SS (Tube): Suitable for lower-volume applications, manual assembly processes, or when tube packaging is preferred for storage and handling.

MCP1631T-E/SS (Tape & Reel): Alternative tape & reel option with identical electrical and mechanical characteristics to the main part.

All parts comply with ROHS3 standards, carry MSL Level 1 (Unlimited moisture sensitivity), and operate across the full -40°C to 125°C temperature range. Component selection should be based on procurement availability, packaging format compatibility with assembly equipment, and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can MCP1631V-E/SS replace MCP1631VT-E/SS in production?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: MCP1631V-E/SS uses Tube packaging while MCP1631VT-E/SS uses Tape & Reel. Substitution is valid if assembly equipment can accommodate tube-packaged components.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel packaging is optimized for automated pick-and-place assembly with continuous feeding. Tube packaging is used for manual assembly or lower-volume applications. Both formats contain the same component with identical electrical performance.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 20-SSOP package with identical pin configuration and footprint dimensions (0.209", 5.30mm Width). PCB layout and schematic connections remain unchanged across all three part numbers.

Q: Do these parts have the same operating temperature range?

A: Yes. All three parts operate from -40°C to 125°C junction temperature (TJ), ensuring identical thermal performance across the specified range.

Q: Are there any compliance differences between these parts?

A: No. All three parts are ROHS3 compliant, carry MSL Level 1 (Unlimited), and maintain identical REACH and ECCN classifications.

Q: Which part should I select for new designs?

A: For new designs, select based on your assembly process: MCP1631VT-E/SS or MCP1631T-E/SS for automated high-volume production (Tape & Reel), or MCP1631V-E/SS for manual assembly or lower volumes (Tube). All three are equally suitable from an electrical and reliability standpoint.