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MPQ8626GD-P Monolithic Power Systems Inc.

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MPQ8626GD-P

IC REG BUCK ADJ 6A 14QFN

Part Number: MPQ8626GD-P

Manufacturer: Monolithic Power Systems Inc.

Category: Voltage Regulators - DC DC Switching Regulators

Package: 14-VFQFN

Datasheet:: MPQ8626GD-P.pdf

Description: IC REG BUCK ADJ 6A 14QFN

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

MPQ8626GD-P 16V, 6A, High-Efficiency Synchronous Step-Down Converter with Adjustable Current Limit

A comprehensive technical overview of the MPQ8626GD-P, a fully integrated synchronous step-down converter from Monolithic Power Systems featuring 6A output current, 2.85V to 16V wide input range, selectable switching frequency up to 2.2MHz, and internal COT control for fast transient response. Covers device function, core features, electrical specifications, 14-lead QFN package, pin configuration, typical applications, and replacement selection guidance.

Monolithic Power Systems 14-QFN (2mm × 3mm) 2.85V to 16V

Device Classification Synchronous Step-Down DC/DC Converter

Part Number: MPQ8626GD-P

Mounting Type: Surface Mount[reference:0]

Operating Temperature Range: -40°C to +125°C[reference:1]

PRODUCT OVERVIEW

What Is the MPQ8626GD-P?

MPQ8626GD-P is a fully integrated, high-frequency, synchronous step-down converter from Monolithic Power Systems (MPS). The device offers a very compact solution that achieves up to 6A of output current with excellent load and line regulation over a wide input supply range.[reference:2]

The MPQ8626GD-P operates with an input voltage range of 2.85V to 16V with an external 3.3V VCC bias, or 4V to 16V with internal VCC bias.[reference:3][reference:4] The output voltage is adjustable from 0.6V up to 6V (0.9 × VIN).[reference:5][reference:6] The device adopts an internally compensated constant-on-time (COT) control that provides fast transient response and eases loop stabilization.[reference:7]

The operating frequency can be set to 600kHz, 1100kHz, or 2000kHz easily with MODE configuration, allowing the MPQ8626 frequency to remain constant regardless of the input and output voltages.[reference:8] The output voltage start-up ramp is controlled by an internal 1.5ms timer, which can be increased by adding a capacitor on TRK/REF.[reference:9] An open-drain power good (PGOOD) signal indicates if the output is within its nominal voltage range.[reference:10] Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP).[reference:11] The MPQ8626GD-P is offered in a compact QFN-14 (2mm × 3mm) package and is rated for operation from –40°C to +125°C junction temperature.[reference:12][reference:13] The device is RoHS compliant, REACH unaffected, and in active production.[reference:14]

High-Efficiency Synchronous Buck Converter 6A output current with integrated low RDS(ON) power MOSFETs and proprietary switching loss reduction.[reference:15]

Wide Input & Adjustable Output 2.85V to 16V input with 0.6V to 6V adjustable output; supports external 3.3V VCC bias.[reference:16][reference:17]

Selectable Frequency & COT Control 600kHz, 1100kHz, or 2000kHz selectable switching frequency with adaptive COT for ultrafast transient response.[reference:18]

DEVICE HIGHLIGHTS

Key Features and Benefits of MPQ8626GD-P

Wide Input Voltage Range

2.85V to 16V with external 3.3V VCC bias, or 4V to 16V with internal VCC bias, accommodating a broad spectrum of applications.[reference:19]

6A Output Current Capability

Delivers up to 6A of continuous output current with integrated low RDS(ON) power MOSFETs and proprietary switching loss reduction technique.[reference:20]

Selectable Switching Frequency

Operating frequency can be set to 600kHz, 1100kHz, or 2000kHz via MODE configuration; frequency remains constant regardless of input and output voltages.[reference:21]

Adaptive COT Control

Internally compensated constant-on-time (COT) control provides ultrafast transient response and eases loop stabilization.[reference:22][reference:23]

Comprehensive Protection Features

Over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), over-temperature protection (OTP), and non-latch UVLO.[reference:24][reference:25]

Compact 14-QFN Package

Available in a QFN-14 (2mm × 3mm) package with wettable flanks, ideal for space-constrained designs.[reference:26][reference:27]

REFERENCE DATA

Technical Specifications for MPQ8626GD-P

Part Number	MPQ8626GD-P	Manufacturer	Monolithic Power Systems
Device Type	Synchronous Step-Down DC/DC Converter	Topology	Buck[reference:28]
Number of Outputs	1[reference:29][reference:30]	Output Type	Adjustable[reference:31][reference:32]
Input Voltage Range (External Bias)	2.85V to 16V[reference:33][reference:34]	Input Voltage Range (Internal Bias)	4V to 16V[reference:35]
Output Voltage Range	0.6V to 6V[reference:36][reference:37]	Output Voltage (Max)	0.9 × VIN[reference:38]
Output Current (Continuous)	6A[reference:39][reference:40]	Switching Frequency (Selectable)	600kHz, 1100kHz, 2000kHz[reference:41][reference:42]
Synchronous Rectifier	Yes[reference:43][reference:44]	Control Mode	Adaptive COT (Constant-On-Time)[reference:45]
Reference Voltage Accuracy	1% (-40°C to +125°C)[reference:46]	Reference Voltage	0.6V[reference:47]
Soft-Start Time	1.5ms Internal (Programmable)[reference:48]	Package / Case	14-VFQFN[reference:49][reference:50]
Supplier Device Package	14-QFN (2mm × 3mm)[reference:51][reference:52]	Package Body Size	2.00mm × 3.00mm[reference:53]
Mounting Type	Surface Mount[reference:54][reference:55]	Operating Temperature (Junction)	-40°C to +125°C[reference:56][reference:57]
Moisture Sensitivity Level	Level-1-260C-UNLIM[reference:58]	RoHS	ROHS3 Compliant[reference:59]
REACH Status	REACH Unaffected[reference:60]	ECCN	EAR99[reference:61]
Packaging	Tape & Reel[reference:62]	Product Status	Active[reference:63]

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for MPQ8626GD-P

Key Features & Configuration

The MPQ8626GD-P offers flexible configuration options:

Input Voltage: 2.85V to 16V with external 3.3V VCC bias; 4V to 16V with internal VCC bias[reference:64]
Output Voltage Setting: Adjustable from 0.6V to 6V using an external resistor divider with 0.6V reference[reference:65]
Switching Frequency: Selectable 600kHz, 1100kHz, or 2000kHz via MODE pin configuration[reference:66]
Soft-Start: Internal 1.5ms timer; can be extended by adding a capacitor on TRK/REF[reference:67]
Operating Modes: Selectable forced CCM or pulse-skip operation[reference:68]
Current Limit: Programmable accurate current limit level[reference:69]

PCB and Power-Supply Guidance

Converter performance depends on layout and component selection:

Output Voltage Setting: Select a value for R1 and determine R2 using the formula: R2 = R1 × (VREF / (VOUT - VREF)), where VREF = 0.6V[reference:70]
Feed-Forward Capacitor: A feed-forward capacitor (CFF) in parallel with R1 is recommended to optimize load transient response; locate the zero at 20~60kHz[reference:71]
PGOOD Pull-Up: Connect PGOOD to VCC or another external voltage source less than 3.6V through a pull-up resistor (typically 10 kΩ)[reference:72]
Input Capacitor: Place a ceramic capacitor close to the VIN pin to minimize supply noise
Output Capacitor: Stable with zero ESR output capacitor[reference:73]
Thermal Pad: The exposed pad on the QFN package must be soldered to the PCB for optimal thermal performance
Verify the recommended PCB footprint from the official datasheet prior to production

14-LEAD QFN (2mm × 3mm)

Pin Configuration Reference for MPQ8626GD-P

MPQ8626

QFN TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The QFN-14 package has 14 pins with a 2.00mm × 3.00mm body size.[reference:74] The exposed thermal pad must be soldered to the PCB for optimal thermal and electrical performance.

1 MODE Frequency Mode Selection - Sets switching frequency to 600kHz, 1100kHz, or 2000kHz[reference:75]

2 EN Enable - Active-high enable input; tie to VIN for automatic start-up

3 VIN Input Supply Voltage - 2.85V to 16V (with external VCC bias)

4 SW Switching Node - Connect to the external inductor

5 SW Switching Node - Connect to the external inductor

6 PGND Power Ground - High-current ground return

7 PGND Power Ground - High-current ground return

8 FB Feedback - Connect to output voltage feedback divider; reference voltage is 0.6V[reference:76]

9 TRK/REF Tracking/Reference - Capacitor programs soft-start time; also used for output voltage tracking[reference:77]

10 VCC Internal LDO Output - Bypass with a ceramic capacitor; can be used as external bias source

11 ILIM Current Limit Setting - Resistor programs accurate current limit level[reference:78]

12 AGND Analog Ground - Low-current ground reference for control circuitry

13 PGOOD Power Good - Open-drain output; indicates output voltage is within nominal range[reference:79]

14 VIN Input Supply Voltage - 2.85V to 16V (with external VCC bias)

APPLICATION AREAS

Typical Applications for MPQ8626GD-P

Point-of-Load Regulation

Provides efficient step-down conversion for local power supplies in distributed power architectures with 6A output capability.

Networking & Telecom Equipment

Wide input range and high efficiency suit networking switches, routers, and telecom infrastructure applications.

Industrial & Test Equipment

Industrial automation, test and measurement equipment requiring compact, high-efficiency power conversion.

Portable & Battery-Powered Systems

Low 2.85V minimum input voltage and high efficiency make this device suitable for battery-powered applications.

FPGA, DSP & ASIC Power

Supplies core and I/O voltages for FPGAs, DSPs, and ASICs with 6A output capability and fast transient response.[reference:80]

Data Storage & Computing

SSD controllers, hard disk drives, and computing systems requiring high efficiency and compact power solutions.

REPLACEMENT GUIDANCE

Selecting an Alternative for MPQ8626GD-P

A replacement for the MPQ8626GD-P should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Monolithic Power Systems product pages and datasheets.

Synchronous step-down converter with 6A output

Input voltage range: 2.85V to 16V

Output voltage: adjustable from 0.6V to 6V

Switching frequency: 600kHz to 2.2MHz

Package: 14-QFN (2mm × 3mm)

Temperature range: –40°C to 125°C

COT control with fast transient response

Protection: OCP, OVP, UVP, OTP

Family alternatives (same package, different suffix):

Part Number	Package	Carrier	SPQ	Temperature Range
MPQ8626GD-P	14-QFN (2mm × 3mm)	Tape & Reel	-	-40°C to 125°C
MPQ8626GD-Z	14-QFN (2mm × 3mm)	Tape & Reel	-	-40°C to 125°C

The MPQ8626GD-P is an active part number from Monolithic Power Systems in the 14-QFN (2mm × 3mm) package with tape-and-reel packaging.[reference:81] The MPQ8626GD-Z is an alternative ordering option with the same package and electrical specifications.[reference:82] The "P" and "Z" suffixes indicate different packaging or quality options; refer to the MPS datasheet for detailed suffix meaning.[reference:83] Select based on ordering preference and availability.

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MANUFACTURER INFORMATION

Monolithic Power Systems

The MPQ8626 (MPQ8626GD-P) belongs to the MPQ8626 family of high-efficiency, synchronous step-down converters from Monolithic Power Systems (MPS). The device is a fully integrated, high-frequency, synchronous buck converter that offers a very compact solution achieving up to 6A of output current with excellent load and line regulation over a wide input supply range.[reference:84] The MPQ8626 adopts internally compensated constant-on-time (COT) control that provides fast transient response and eases loop stabilization.[reference:85] The device is available in a QFN-14 (2mm × 3mm) package and is widely used in point-of-load regulation, networking, telecom, industrial, and portable applications.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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MPQ8626GD-P Technical Information

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Specifications

Product Attribute: Attribute Value

Part Number: MPQ8626GD-P

Manufacturer: Monolithic Power Systems Inc.

Package: 14-VFQFN

Series: -

Package/Case: 14-VFQFN

Packaging: Tape & Reel (TR)

Product Status: Active

Function: Step-Down

Output Configuration: Positive

Topology: Buck

Output Type: Adjustable

Number of Outputs: 1

Voltage - Input (Min): 2.85V

Voltage - Input (Max): 16V

Voltage - Output (Min/Fixed): 0.6V

Voltage - Output (Max): 6V

Current - Output: 6A

Frequency - Switching: 600kHz ~ 2.2MHz

Synchronous Rectifier: Yes

Operating Temperature: -40°C ~ 125°C (TJ)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 14-QFN (2x3)

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MPQ8626GD-P Procurement and Technical Support

MPQ8626GD-P is manufactured by Monolithic Power Systems Inc.. This page provides purchasing information including manufacturer, category, package, datasheet, stock reference, price reference and product specifications.

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Part Number: MPQ8626GD-P

Manufacturer: Monolithic Power Systems Inc.

Package: 14-VFQFN

Category: Voltage Regulators - DC DC Switching Regulators

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