MCP1631T-E/SS Equivalent & Substitute Parts

Part Overview

The MCP1631T-E/SS is a Sepic Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC manufactured by Microchip Technology. This active product operates as a transistor driver with single-output, single-phase topology, designed for applications requiring flexible voltage conversion between 3V and 5.5V supply rails. The device is housed in a 20-SSOP surface mount package and is ROHS3 compliant with MSL Level 1 rating.

Substitute parts are identified when they maintain identical electrical specifications, functional topology, and mechanical compatibility while differing only in packaging format or inventory source designation.

Substiute Parts

MCP1631T-E/SS

Microchip TechnologyIn Stock: 1294MCP1631T-E/SS Datasheet

Current PartRFQ

MCP1631-E/SS

Microchip TechnologyIn Stock: 2189MCP1631-E/SS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MCP1631-E/SS qualifies as a direct substitute for the MCP1631T-E/SS based on the following substitution criteria:

Identical Electrical Parameters:

• Sepic topology with positive output configuration
• Single output, single-phase design
• Identical supply voltage range (3V ~ 5.5V)
• Identical control features (Enable, Frequency Control, Ramp)
• Identical operating temperature range (-40°C ~ 125°C)
• Identical transistor driver output type

Identical Mechanical Parameters:

• 20-SSOP package with 0.209" width (5.30mm)
• Surface mount mounting type
• Same base product number (MCP1631)

Identical Compliance & Certifications:

• ROHS3 compliant
• MSL Level 1 rating
• REACH unaffected status
• EAR99 ECCN classification

Packaging Difference: The sole distinction between these parts is the packaging format: MCP1631T-E/SS is supplied in Tape & Reel (TR) format, while MCP1631-E/SS is supplied in Tube format. Both formats contain identical die and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both MCP1631T-E/SS and MCP1631-E/SS are active products from Microchip Technology with identical electrical and mechanical specifications. Selection between these parts should be based on procurement and assembly requirements:

MCP1631T-E/SS (Tape & Reel): Suitable for high-volume automated assembly operations where tape-and-reel packaging integrates directly with pick-and-place equipment.

MCP1631-E/SS (Tube): Suitable for lower-volume production, manual assembly, or applications where tube packaging is preferred for handling and storage.

Both parts maintain ROHS3 compliance, MSL Level 1 rating, and identical functional performance. The choice between them does not affect circuit design, thermal performance, or electrical behavior.

Frequently Asked Questions (FAQ)

Q: Can MCP1631-E/SS replace MCP1631T-E/SS in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Tube vs. Tape & Reel). Selection depends on assembly process requirements, not circuit performance.

Q: Are there any electrical differences between these parts?

A: No. Both parts have identical supply voltage range (3V ~ 5.5V), control features (Enable, Frequency Control, Ramp), operating temperature range (-40°C ~ 125°C), and Sepic topology specifications.

Q: Do both parts fit the same PCB footprint?

A: Yes. Both use the 20-SSOP package with identical 0.209" width (5.30mm). PCB layout and component placement are interchangeable.

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

A: Tape & Reel packaging supplies components on continuous carrier tape suitable for automated pick-and-place assembly. Tube packaging supplies components in plastic tubes suitable for manual handling or lower-volume assembly. Electrical performance is identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both MCP1631T-E/SS and MCP1631-E/SS are ROHS3 compliant with MSL Level 1 rating and REACH unaffected status.

Q: Which part should I specify for a new design?

A: Either part is suitable. Specify based on your manufacturing process: use Tape & Reel (MCP1631T-E/SS) for automated assembly or Tube (MCP1631-E/SS) for manual assembly or lower volumes.