MPQ8636GL-10-Z Equivalent & Substitute Parts

Part Overview

The MPQ8636GL-10-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable step-down voltage regulation with a 10A output current capability. This component operates across an input voltage range of 4.5V to 18V and provides adjustable output voltage from 0.611V to 13V. The device features synchronous rectification and is housed in a 13-VFQFN surface mount package.

The MPQ8636GL-10-Z carries a "Not For New Designs" product status, indicating that while inventory remains available (12,200 pcs in stock), this component is no longer recommended for new design implementations. Identifying equivalent substitute parts is necessary to ensure design continuity and access to actively supported alternatives.

Substiute Parts

MPQ8636GL-10-Z

Monolithic Power Systems Inc.In Stock: 12246MPQ8636GL-10-Z Datasheet

Current PartRFQ

UCD74106RGMR

Texas InstrumentsIn Stock: 35340UCD74106RGMR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPQ8636GL-10-Z is determined by the following critical parameters:

• Topology & Function: Buck switching regulator with step-down capability
• Output Configuration: Positive adjustable voltage regulation
• Input Voltage Compatibility: 4.5V to 18V operating range
• Output Current Capability: Minimum 10A required for direct substitution
• Package Type: 13-VFQFN surface mount package
• Operating Temperature Range: -40°C to 125°C (TJ)
• Synchronous Rectification: Required feature
• Regulatory Compliance: ROHS3 compliance mandatory

The UCD74106RGMR from Texas Instruments is identified as a manufacturer-recommended substitute. While this part operates within the same input voltage range (4.5V – 18V) and shares the same package footprint (13-VFQFN), it provides a reduced output current rating of 6A compared to the 10A capability of the MPQ8636GL-10-Z. This reduction in current capacity represents a key design consideration for applications requiring the full 10A output specification.

Parameter Comparison

Engineering Selection Recommendations

The UCD74106RGMR is an active product from Texas Instruments and represents the manufacturer-recommended substitute for the MPQ8636GL-10-Z. Both components maintain ROHS3 compliance and operate across identical input voltage ranges with matching operating temperature specifications.

The primary design consideration is the output current differential: the UCD74106RGMR delivers 6A maximum output current versus the 10A capability of the MPQ8636GL-10-Z. Applications requiring the full 10A output specification cannot use the UCD74106RGMR as a direct replacement without circuit redesign or parallel configuration of multiple regulators.

The UCD74106RGMR features a higher maximum switching frequency (up to 2MHz) compared to the MPQ8636GL-10-Z (200kHz – 1MHz), which may provide advantages in applications requiring smaller passive component footprints or improved transient response characteristics.

Package footprint compatibility exists between the two devices, though the UCD74106RGMR incorporates an exposed pad variant (3x3mm) compared to the standard 13-VFQFN (3x4mm) of the MPQ8636GL-10-Z. PCB layout verification is required to confirm mechanical and thermal compatibility.

Frequently Asked Questions (FAQ)

Q: Can the UCD74106RGMR directly replace the MPQ8636GL-10-Z in all applications?

A: Direct replacement is possible only in applications where the output current requirement does not exceed 6A. Applications requiring 10A output current cannot use the UCD74106RGMR without circuit modification.

Q: What are the key differences between these two regulators?

A: The primary differences are output current rating (10A vs. 6A), maximum switching frequency (1MHz vs. 2MHz), and package dimensions (3x4mm vs. 3x3mm with exposed pad). Input voltage range, operating temperature, and topology are identical.

Q: Is the UCD74106RGMR suitable for new designs?

A: Yes. The UCD74106RGMR carries an "Active" product status, making it appropriate for new design implementations where the 6A output current specification meets application requirements.

Q: Are there package compatibility concerns?

A: Both devices use 13-VFQFN surface mount packages. The UCD74106RGMR includes an exposed pad and uses a 3x3mm footprint, while the MPQ8636GL-10-Z uses a 3x4mm footprint. PCB layout verification is necessary to confirm mechanical fit and thermal performance.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the MPQ8636GL-10-Z and UCD74106RGMR are ROHS3 compliant and carry identical ECCN and HTSUS classifications.