MCP1256T-E/MF Equivalent & Substitute Parts

Part Overview

The MCP1256T-E/MF is a charge pump switching regulator IC manufactured by Microchip Technology, classified as a Power Management (PMIC) component. This device functions as a step-up converter, delivering a fixed positive output of 3.3V at 100mA from input voltages ranging from 1.8V to 3.6V. The component operates at a switching frequency of 650kHz and is housed in a 10-VFDFN exposed pad package suitable for surface mount applications.

The product maintains Active status within Microchip's portfolio. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and compliance certifications to ensure direct functional equivalence in circuit applications.

Substiute Parts

MCP1256T-E/MF

Microchip TechnologyIn Stock: 3605MCP1256T-E/MF Datasheet

Current PartRFQ

MCP1256-E/MF

Microchip TechnologyIn Stock: 2506MCP1256-E/MF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCP1256T-E/MF are identified through strict alignment of the following critical parameters:

• Manufacturer: Microchip Technology (same manufacturer ensures design continuity and datasheet compatibility)
• Function and Topology: Step-Up charge pump configuration
• Output Specification: Fixed positive 3.3V output at 100mA
• Input Voltage Range: 1.8V to 3.6V
• Switching Frequency: 650kHz
• Package Type: 10-VFDFN Exposed Pad
• Compliance: ROHS3 Compliant, MSL Level 1

The primary distinction between the main part and its substitute lies in packaging format (Tape & Reel versus Tube), which does not affect electrical performance or circuit functionality.

Parameter Comparison

Engineering Selection Recommendations

Both the MCP1256T-E/MF and MCP1256-E/MF maintain Active product status within Microchip Technology's current offerings. Both components satisfy ROHS3 compliance requirements and carry MSL Level 1 classification, indicating no moisture sensitivity constraints during storage and handling.

Selection between these parts is determined by supply chain requirements and procurement specifications. The MCP1256T-E/MF is supplied in Tape & Reel format, suitable for automated assembly processes. The MCP1256-E/MF is supplied in Tube format, appropriate for manual handling or lower-volume applications. Electrical performance, thermal characteristics, and circuit functionality remain identical across both packaging options.

Frequently Asked Questions (FAQ)

Q: Can MCP1256-E/MF replace MCP1256T-E/MF in production assembly?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format only. Tape & Reel format is optimized for high-speed automated pick-and-place assembly, while Tube format is suitable for manual or lower-volume processes. PCB layout, schematic design, and thermal management remain unchanged.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance status and MSL Level 1 classification. No additional testing or qualification is required when substituting between these variants.

Q: What is the significance of the 10-VFDFN Exposed Pad package?

A: The 10-VFDFN package is a 10-pin Very Fine Pitch Dual Flat No-Lead package with an exposed thermal pad. The exposed pad provides direct thermal contact to the PCB, improving heat dissipation. Both substitute parts use this identical package, ensuring footprint compatibility and thermal performance equivalence.

Q: Does switching frequency affect circuit design when substituting parts?

A: No. Both parts operate at 650kHz. Input and output filtering component values, PCB layout considerations, and EMI characteristics remain consistent across both variants.

Q: What input voltage range must be maintained for proper operation?

A: The input voltage must remain between 1.8V and 3.6V for both parts. Operation outside this range may result in device malfunction or damage.