MCP1650ST-E/MS Equivalent & Substitute Parts

Part Overview

The MCP1650ST-E/MS is an active DC-DC controller IC from Microchip Technology designed for multi-topology boost, flyback, and SEPIC regulator applications. This component functions as a transistor driver for positive output step-up and step-up/step-down topologies. The part is in active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified based on identical electrical specifications and compatible packaging configurations to support design flexibility and supply chain continuity.

Substiute Parts

MCP1650ST-E/MS

Microchip TechnologyIn Stock: 1648MCP1650ST-E/MS Datasheet

Current PartRFQ

MCP1650S-E/MS

Microchip TechnologyIn Stock: 2215MCP1650S-E/MS Datasheet

DirectRFQ

MCP1650RT-E/MS

Microchip TechnologyIn Stock: 2635MCP1650RT-E/MS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP1650ST-E/MS are identified from the MCP1650 product family based on strict electrical and mechanical parameter equivalence. All substitute parts share identical specifications across the following critical parameters:

• Base product number: MCP1650
• Topology: Boost, Flyback, SEPIC
• Output type and configuration: Transistor Driver, Positive output
• Voltage supply range: 2.7V ~ 5.5V
• Switching frequency: 750kHz
• Duty cycle maximum: 80%
• Control features: Current Limit, Enable, Low Battery, Power Good
• Operating temperature range: -40°C ~ 125°C
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Compliance: ROHS3, MSL 1

Substitution differences are limited to packaging format only: Tape & Reel (TR), Tube, and Cut Tape (CT) & Digi-Reel® represent different distribution and handling methods with no impact on electrical performance or functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts—MCP1650ST-E/MS, MCP1650S-E/MS, and MCP1650RT-E/MS—are functionally equivalent and interchangeable at the circuit level. Selection between these parts is determined by packaging and supply chain requirements:

• MCP1650ST-E/MS (Tape & Reel): Suitable for high-volume automated assembly operations requiring continuous reel feeding.
• MCP1650S-E/MS (Tube): Appropriate for lower-volume production runs or manual assembly processes.
• MCP1650RT-E/MS (Cut Tape & Digi-Reel®): Flexible option supporting both manual and automated assembly with intermediate volume requirements.

All parts maintain active product status with full RoHS3 compliance and MSL 1 rating, ensuring long-term availability and environmental regulatory compliance. No electrical performance differences exist between these variants.

Frequently Asked Questions (FAQ)

Q: Are MCP1650ST-E/MS, MCP1650S-E/MS, and MCP1650RT-E/MS electrically identical?

A: Yes. All three parts share identical electrical specifications, including topology, switching frequency, duty cycle, control features, and operating temperature range. They differ only in packaging format.

Q: Can I substitute MCP1650S-E/MS (Tube) for MCP1650ST-E/MS (Tape & Reel) in my design?

A: Yes. The parts are electrically and mechanically equivalent. The substitution affects only component handling and assembly logistics, not circuit performance or PCB layout.

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

A: These represent different distribution formats. Tape & Reel is continuous reel packaging for automated assembly. Tube is a rigid container for manual or lower-volume handling. Cut Tape & Digi-Reel® combines cut tape segments with reel capability for flexible assembly processes. All formats contain identical components.

Q: Are all three parts RoHS3 compliant?

A: Yes. MCP1650ST-E/MS, MCP1650S-E/MS, and MCP1650RT-E/MS are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use these parts interchangeably in a boost converter application?

A: Yes. All three parts support boost, flyback, and SEPIC topologies with identical control features and performance specifications. They are fully interchangeable for boost converter designs.

Q: What is the pin configuration for the 8-MSOP package?

A: The 8-MSOP package is 0.118" (3.00mm) width surface mount. Pin configuration details are available in the MCP1650 datasheet from Microchip Technology.