MP2136EG-LF-Z Equivalent & Substitute Parts

Part Overview

The MP2136EG-LF-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable step-down voltage regulation with 1A output capability. This device operates across a 2.5V to 6V input range and delivers adjustable output from 0.6V to 6V at 2MHz switching frequency with integrated synchronous rectification.

The MP2136EG-LF-Z carries a "Not For New Designs" product status, indicating it has reached end-of-life or obsolescence phase. This status necessitates identification of functionally equivalent alternatives for ongoing production requirements, maintenance applications, and new design implementations where similar performance characteristics are required.

Substiute Parts

MP2136EG-LF-Z

Monolithic Power Systems Inc.In Stock: 7887MP2136EG-LF-Z Datasheet

Current PartRFQ

RT5710AHGQW

Richtek USA Inc.In Stock: 65365RT5710AHGQW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP2136EG-LF-Z is determined by the following critical parameters:

Core Functional Requirements:

• Step-down (buck) topology with positive adjustable output configuration
• Single output channel
• 1A output current capability
• Synchronous rectification capability

Electrical Compatibility Parameters:

• Input voltage range: minimum 2.5V, maximum 6V
• Output voltage range: minimum 0.6V, maximum 6V
• Switching frequency: 2MHz nominal operation

Physical & Environmental Constraints:

• Surface mount package with 6-pin VDFN or equivalent footprint
• Operating temperature range: -20°C to 85°C
• RoHS3 compliance and REACH unaffected status

The RT5710AHGQW qualifies as a substitute based on matching core topology, output configuration, current rating, and package class. Variations in maximum input voltage (5.5V vs 6V), maximum output voltage (3.4V vs 6V), switching frequency (1.5MHz vs 2MHz), and operating temperature range (-40°C to 85°C vs -20°C to 85°C) represent parameter differences that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The RT5710AHGQW is the designated manufacturer-recommended substitute for the MP2136EG-LF-Z. Selection between these devices must account for the following factors:

Product Status Consideration: The RT5710AHGQW carries Active product status, ensuring ongoing availability and manufacturer support. The MP2136EG-LF-Z "Not For New Designs" designation indicates limited future availability and no new feature development.

Compliance & Certification: Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications.

Electrical Parameter Differences: Applications requiring input voltages above 5.5V or output voltages above 3.4V cannot use the RT5710AHGQW as a direct substitute. The MP2136EG-LF-Z supports full 6V input and output capability. Switching frequency operates at 1.5MHz on the RT5710AHGQW versus 2MHz on the MP2136EG-LF-Z, affecting output ripple and filtering requirements.

Environmental & Packaging Considerations: The RT5710AHGQW operates across an extended lower temperature range (-40°C vs -20°C minimum), providing broader environmental coverage. Both devices use 6-pin VDFN packages with exposed pads; however, VDFN and WDFN variants may require PCB layout verification for thermal performance equivalence. The RT5710AHGQW carries MSL 3 rating versus MSL 1 on the MP2136EG-LF-Z, requiring controlled moisture exposure during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the RT5710AHGQW directly replace the MP2136EG-LF-Z in all applications?

A: Direct substitution is valid only when application requirements fall within the RT5710AHGQW parameter envelope: input voltage maximum 5.5V, output voltage maximum 3.4V, and operating temperature minimum -40°C. Applications exceeding these limits require the MP2136EG-LF-Z or alternative devices.

Q: What are the package differences between 6-VDFN and 6-WDFN?

A: Both packages are 6-pin, 2x2mm VDFN/WDFN variants with exposed pads. Physical footprints are similar; however, thermal characteristics and PCB layout requirements may differ. Consult device datasheets and thermal modeling for specific applications.

Q: How does the 1.5MHz switching frequency of the RT5710AHGQW compare to the 2MHz of the MP2136EG-LF-Z?

A: Lower switching frequency reduces EMI generation and component stress but increases output voltage ripple and requires larger filter components. Applications sensitive to ripple or EMI performance must evaluate frequency impact on circuit design.

Q: What is the significance of MSL 3 versus MSL 1 moisture sensitivity?

A: MSL 1 (unlimited) allows indefinite storage without moisture control. MSL 3 (168 hours) requires controlled humidity storage and limits floor life after moisture exposure. Manufacturing processes must implement appropriate moisture management for the RT5710AHGQW.

Q: Are there inventory or lead time considerations between these devices?

A: The MP2136EG-LF-Z carries 7,780 pieces in stock with "Not For New Designs" status, indicating declining availability. The RT5710AHGQW maintains 65,300 pieces in stock with Active status, ensuring sustained supply for production requirements.