MCP1710T-30I/LZ Equivalent & Substitute Parts

Part Overview

The MCP1710T-30I/LZ is a linear voltage regulator IC from Microchip Technology designed for positive fixed 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 part delivers regulated 3V output with a maximum dropout voltage of 0.45V at full load and includes enable control and over-current protection features.

Substiute Parts

MCP1710T-30I/LZ

Microchip TechnologyIn Stock: 1948MCP1710T-30I/LZ Datasheet

Current PartRFQ

MCP1700T-3002E/MAY

Microchip TechnologyIn Stock: 9248MCP1700T-3002E/MAY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP1710T-30I/LZ is determined by the following critical parameters:

Fixed Output Voltage: Both the main part and substitute must deliver 3V fixed output to maintain circuit compatibility.

Output Current Capacity: The substitute must meet or exceed the 200mA output current requirement of the original design.

Input Voltage Range: The substitute must accept the maximum input voltage of 5.5V or higher to ensure compatibility with the power supply topology.

Dropout Voltage: The substitute's dropout voltage must be equal to or lower than 0.45V to maintain regulation performance under load conditions.

Package Compatibility: Surface mount packages with compatible pinout and thermal characteristics are required for PCB layout continuity.

Regulatory Compliance: RoHS3 compliance and REACH unaffected status must be maintained for production and distribution requirements.

The MCP1700T-3002E/MAY qualifies as a direct substitute based on these parameters: it maintains 3V fixed output, exceeds the 200mA current requirement at 250mA, accepts up to 6V input, delivers superior dropout voltage performance at 0.35V, and maintains all required compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The MCP1700T-3002E/MAY is the qualified substitute for the obsolete MCP1710T-30I/LZ based on the following engineering criteria:

Product Status: The substitute is active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying production and distribution requirements without modification to supply chain processes.

Electrical Performance: The substitute exceeds the electrical specifications of the main part across all critical parameters: higher output current capacity (250mA vs 200mA), lower dropout voltage (0.35V vs 0.45V), and extended operating temperature range (-40°C to 125°C vs -40°C to 85°C).

Protection Enhancement: The substitute includes additional protection features (over-temperature and short-circuit protection) beyond the main part's over-current protection, providing enhanced circuit reliability.

Package Consideration: The substitute uses a 6-VDFN package versus the main part's 8-VDFN package. PCB layout modification is required to accommodate the different pin count and footprint geometry.

Frequently Asked Questions (FAQ)

Q: Can the MCP1700T-3002E/MAY directly replace the MCP1710T-30I/LZ without PCB modification?

A: No. The substitute uses a 6-VDFN package while the main part uses an 8-VDFN package. The different pin counts and footprint dimensions require PCB layout redesign. However, the electrical functionality is compatible when the new package footprint is implemented.

Q: What is the impact of the different package sizes on thermal performance?

A: Both packages feature exposed pads for thermal management. The 6-VDFN package is physically smaller but maintains adequate thermal characteristics for the specified current levels. Thermal performance depends on PCB copper area and via design around the exposed pad.

Q: Does the substitute's higher quiescent current (4 µA vs 20 nA) affect battery-powered applications?

A: The 4 µA quiescent current of the substitute is 200 times higher than the main part. For battery-powered or ultra-low-power applications where the regulator operates in standby mode for extended periods, this difference may impact overall system power consumption. Evaluate standby current requirements against the application's power budget.

Q: Are the control features compatible between the two parts?

A: The main part includes an enable control feature; the substitute does not list control features in the provided specifications. If the design requires enable/disable functionality, alternative substitutes with matching control features must be evaluated.

Q: What certifications apply to both parts for international distribution?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for distribution in the European Union and other regions with equivalent compliance mandates. Both carry EAR99 ECCN classification and 8542.39.0001 HTSUS code.