MPQ8636HGV-20-Z Equivalent & Substitute Parts

Part Overview

The MPQ8636HGV-20-Z is an active buck switching regulator IC manufactured by Monolithic Power Systems, designed for positive adjustable output applications. This device delivers 20A continuous output current with an adjustable output voltage range from 0.611V to 13V, operating from a 4.5V to 18V input supply. The part is housed in a 25-VFQFN surface mount package and is ROHS3 compliant with unlimited moisture sensitivity rating. Identifying equivalent substitute parts is necessary when the primary part becomes unavailable or when alternative packaging or performance specifications better suit specific application requirements.

Substiute Parts

MPQ8636HGV-20-Z

Monolithic Power SystemsIn Stock: 971MPQ8636HGV-20-Z Datasheet

Current PartRFQ

MP8796BGVT-0000-Z

Monolithic Power Systems Inc.In Stock: 21384MP8796BGVT-0000-Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPQ8636HGV-20-Z is determined by the following critical parameters:

• Topology & Function: Buck switching regulator with step-down configuration
• Output Type: Positive adjustable voltage
• Output Current Capability: Minimum 20A continuous
• Input Voltage Range: Compatibility with 4.5V to 18V supply
• Output Voltage Range: Adjustable from minimum 0.6V or lower to maximum 5.5V or higher
• Synchronous Rectification: Integrated synchronous rectifier required
• Thermal Performance: Operating temperature range -40°C to 125°C
• Compliance: ROHS3 compliant, MSL 1 rating
• Mounting: Surface mount technology

The MP8796BGVT-0000-Z qualifies as a substitute based on these parameters, with the following considerations: higher output current capability (30A vs 20A), different input voltage range (4V to 16V), and different package type (25-PowerWFQFN vs 25-VFQFN).

Parameter Comparison

Engineering Selection Recommendations

Both parts are manufactured by Monolithic Power Systems and maintain active product status with ROHS3 compliance and unlimited moisture sensitivity rating. The MP8796BGVT-0000-Z offers higher output current capability (30A) compared to the MPQ8636HGV-20-Z (20A), making it suitable for applications requiring greater current headroom. However, the MP8796BGVT-0000-Z has a reduced maximum output voltage (5.5V vs 13V) and a narrower input voltage range (4V to 16V vs 4.5V to 18V). Package differences exist between the two devices: the MPQ8636HGV-20-Z uses 25-VFQFN while the MP8796BGVT-0000-Z uses 25-PowerWFQFN, requiring PCB layout and thermal management considerations. Selection should be based on specific application voltage and current requirements within the defined operating ranges.

Frequently Asked Questions (FAQ)

Q: Can the MP8796BGVT-0000-Z directly replace the MPQ8636HGV-20-Z in all applications?

A: Direct replacement depends on application requirements. The MP8796BGVT-0000-Z has higher output current (30A vs 20A) and lower maximum output voltage (5.5V vs 13V). Applications requiring output voltages above 5.5V cannot use the MP8796BGVT-0000-Z. Input voltage range differences must also be evaluated: the MP8796BGVT-0000-Z operates from 4V minimum versus 4.5V for the MPQ8636HGV-20-Z.

Q: What are the package differences between these parts?

A: The MPQ8636HGV-20-Z uses a 25-VFQFN package (5x4mm), while the MP8796BGVT-0000-Z uses a 25-PowerWFQFN package (4x5mm). Both are surface mount QFN packages with 25 pins. The different package designations indicate different thermal and electrical characteristics. PCB layout and thermal design must account for these package differences.

Q: Are both parts suitable for the same temperature range?

A: Yes. Both the MPQ8636HGV-20-Z and MP8796BGVT-0000-Z operate across the identical temperature range of -40°C to 125°C junction temperature, making them compatible for applications with equivalent thermal requirements.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001. Compliance status is equivalent between the two devices.

Q: How do the switching frequency ranges differ?

A: The MPQ8636HGV-20-Z operates from 200kHz to 1MHz, while the MP8796BGVT-0000-Z operates from 400kHz to 1MHz. The MP8796BGVT-0000-Z has a higher minimum switching frequency, which may affect EMI characteristics and component selection in the power stage design.