MCP1710T-33I/LZ Equivalent & Substitute Parts

Part Overview

The MCP1710T-33I/LZ is a linear voltage regulator IC from Microchip Technology designed for positive fixed 3.3V output applications with 200mA current capacity in an 8-VDFN (2x2) surface mount package. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The MCP1710 series provides regulated power management for low-power applications requiring stable 3.3V output with minimal dropout voltage and integrated over-current protection.

Substiute Parts

MCP1710T-33I/LZ

Microchip TechnologyIn Stock: 998MCP1710T-33I/LZ Datasheet

Current PartRFQ

MCP1700T-3302E/MAY

Microchip TechnologyIn Stock: 5225MCP1700T-3302E/MAY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP1710T-33I/LZ is determined by the following critical parameters:

• Fixed output voltage of 3.3V
• Positive output configuration
• Surface mount technology with exposed pad design
• Microchip Technology manufacturer lineage
• ROHS3 compliance and REACH unaffected status
• Operating temperature range compatibility
• Over-current protection capability

The MCP1700T-3302E/MAY qualifies as a direct substitute based on matching output voltage (3.3V), positive output configuration, surface mount construction, and regulatory compliance. While the substitute offers enhanced specifications (higher current capacity, improved dropout voltage, extended temperature range, and additional protection features), these represent functional improvements rather than deviations from the core electrical requirements.

Parameter Comparison

Engineering Selection Recommendations

The MCP1700T-3302E/MAY is the qualified substitute for the obsolete MCP1710T-33I/LZ. Selection is supported by:

• Identical fixed output voltage specification (3.3V)
• Matching positive output configuration and regulatory compliance (ROHS3, REACH unaffected)
• Active product status ensuring long-term availability and supply chain continuity
• Enhanced electrical performance characteristics (improved dropout voltage, higher current capacity, extended operating temperature range)
• Microchip Technology manufacturer consistency
• Equivalent surface mount construction with exposed pad design

The substitute part accommodates the original design requirements while providing superior performance margins and extended operational capability. The package transition from 8-VDFN to 6-DFN requires PCB layout modification but maintains the same 2x2mm footprint dimensions.

Frequently Asked Questions (FAQ)

Q: Can the MCP1700T-3302E/MAY directly replace the MCP1710T-33I/LZ without circuit modifications?

A: The substitute provides the same 3.3V fixed output and positive configuration. However, the package changes from 8-VDFN to 6-DFN, requiring PCB footprint redesign. Pin configuration must be verified against datasheets before implementation.

Q: What are the key differences between these parts?

A: The substitute offers higher output current (250mA vs 200mA), lower dropout voltage (0.35V vs 0.45V), extended temperature range (-40°C to 125°C vs -40°C to 85°C), and additional protection features (over-temperature and short-circuit protection). The quiescent current increases from 20nA to 4µA.

Q: Is the MCP1700T-3302E/MAY suitable for applications requiring the original 200mA specification?

A: Yes. The substitute's 250mA rating exceeds the original 200mA requirement, providing additional design margin.

Q: Are both parts RoHS compliant?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the impact of the package change from 8-VDFN to 6-DFN?

A: The 6-DFN package is smaller with fewer pins. PCB layout and schematic must be updated to accommodate the new pin configuration. Both packages maintain the same 2x2mm exposed pad dimensions.

Q: Why is the original part obsolete?

A: The MCP1710T-33I/LZ has been discontinued by Microchip Technology. The MCP1700 series represents the current active product line for equivalent 3.3V linear regulator applications.