MP8761GLE-P Equivalent & Substitute Parts

Part Overview

The MP8761GLE-P is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable output applications. This Power Management IC (PMIC) delivers 8A output current with an adjustable voltage range from 0.611V to 13V, operating from a 4.5V to 18V input supply. The device is marked as "Not For New Designs," indicating it is a legacy component. Identifying equivalent and substitute parts is necessary for applications requiring continued supply, design flexibility, or performance optimization within compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer	Monolithic Power Systems Inc.
Function	Step-Down (Buck)
Output Configuration	Positive
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min/Max)	4.5V / 18V
Voltage - Output (Min/Max)	0.611V / 13V
Current - Output	8A
Frequency - Switching	200kHz ~ 1MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	16-PowerVFQFN (3x4)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MP8761GLE-P is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

Topology: Buck (Step-Down)
Output Configuration: Positive
Output Type: Adjustable
Voltage Range: Input 4.5V–18V, Output 0.611V–13V
Switching Frequency: 200kHz–1MHz
Synchronous Rectifier: Yes
Package: 16-PowerVFQFN (3x4)
Operating Temperature: -40°C to 125°C (TJ)

Current Output Capability: The MP8761GLE-P delivers 8A. Substitute parts are grouped by output current rating:

8A equivalents: MP8761GLE-Z (same base product, different packaging)
10A upgrades: MP8762GLE-P, MP8762GLE-Z, MPQ8632GLE-10-P, MPQ8632GLE-10-Z
12A upgrades: MP8763GLE-P, MP8763GLE-Z, MPQ8632DGLE-12-P, MPQ8632GLE-12-P, MPQ8632GLE-12-Z

All listed substitutes maintain identical input voltage range, output voltage adjustability, switching frequency, synchronous rectification, package form factor, and thermal operating range.

Parameter Comparison

Part Number	Manufacturer	Output Current	Input Voltage	Output Voltage Range	Switching Frequency	Package	Product Status	Inventory (Pcs)
MP8761GLE-P	Monolithic Power Systems Inc.	8A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	1302
MP8761GLE-Z	Monolithic Power Systems Inc.	8A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	23243
MP8762GLE-P	Monolithic Power Systems Inc.	10A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	3498
MP8762GLE-Z	Monolithic Power Systems Inc.	10A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	88650
MP8763GLE-P	Monolithic Power Systems Inc.	12A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	752
MP8763GLE-Z	Monolithic Power Systems Inc.	12A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Not For New Designs	1933
MPQ8632DGLE-12-P	Monolithic Power Systems Inc.	12A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Active	678
MPQ8632GLE-10-P	Monolithic Power Systems Inc.	10A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Active	941
MPQ8632GLE-10-Z	Monolithic Power Systems Inc.	10A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Active	5200
MPQ8632GLE-12-P	Monolithic Power Systems Inc.	12A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Active	2000
MPQ8632GLE-12-Z	Monolithic Power Systems Inc.	12A	4.5V–18V	0.611V–13V	200kHz–1MHz	16-PowerVFQFN	Active	9611

Engineering Selection Recommendations

Direct Equivalent (Same Current Rating): MP8761GLE-Z is the direct equivalent to MP8761GLE-P, differing only in packaging designation. Both deliver 8A output and are marked "Not For New Designs." MP8761GLE-Z offers significantly higher inventory availability (23,243 units vs. 1,302 units).

Higher Current Capacity Substitutes: For applications requiring increased current headroom or thermal margin, the MP8762 series (10A) and MP8763 series (12A) are direct substitutes. All maintain identical input/output voltage specifications, switching frequency, and package form factor. These parts are compatible with existing PCB layouts and require no circuit topology changes.

Active Product Line Migration: The MPQ8632 series represents the active product line continuation from Monolithic Power Systems Inc. Parts MPQ8632GLE-10-P, MPQ8632GLE-10-Z, MPQ8632GLE-12-P, and MPQ8632GLE-12-Z are designated "Active" status and are recommended for new designs requiring long-term supply assurance. MPQ8632DGLE-12-P is also active status with 12A capability.

Compliance and Certification: All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited moisture sensitivity), and identical thermal operating range (-40°C to 125°C TJ). No additional qualification is required for substitution within this family.

Frequently Asked Questions (FAQ)

Q: Can MP8761GLE-Z replace MP8761GLE-P directly? A: Yes. Both parts are identical in electrical and mechanical specifications. The difference is packaging designation only. MP8761GLE-Z has higher inventory availability.

Q: What is the difference between the MP876x and MPQ8632 series? A: The MP876x series (MP8761, MP8762, MP8763) are legacy products marked "Not For New Designs." The MPQ8632 series is the active product line from Monolithic Power Systems Inc. with identical electrical specifications and package form factor. MPQ8632 parts are recommended for applications requiring long-term supply continuity.

Q: Can I use a 10A or 12A part in place of the 8A MP8761GLE-P? A: Yes. The MP8762 (10A) and MP8763 (12A) series are direct substitutes with identical input voltage, output voltage adjustability, switching frequency, and package. Higher current rating provides additional thermal margin and design flexibility. No circuit modifications are required.

Q: Are all substitute parts in the same package? A: Yes. All listed substitutes use the 16-PowerVFQFN (3x4) package. PCB layout compatibility is maintained across the entire family.

Q: What is the significance of the "-P" and "-Z" suffixes? A: The "-P" suffix indicates Tape & Reel (TR) packaging, while "-Z" indicates alternative packaging designation. Both are functionally equivalent; the suffix reflects supplier packaging format only.

Q: Which substitute part should I select for new designs? A: For new designs, select from the MPQ8632 series (MPQ8632GLE-10-P, MPQ8632GLE-10-Z, MPQ8632GLE-12-P, MPQ8632GLE-12-Z, or MPQ8632DGLE-12-P), as these are designated "Active" status. The 12A variants (MPQ8632GLE-12-P or MPQ8632GLE-12-Z) provide the highest current capacity and thermal margin.

Q: Are there any thermal or performance differences between these parts? A: All parts operate within the same temperature range (-40°C to 125°C TJ) and maintain identical switching frequency (200kHz–1MHz). Higher current-rated parts (10A and 12A) provide improved thermal performance under full-load conditions due to lower junction temperature rise.

Q: Do all parts meet the same compliance standards? A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. No additional compliance qualification is required.

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