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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MP8763GL-Z

Name: MP8763GL-Z
Brand: Monolithic Power Systems Inc.
SKU: MP8763GL-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP8763GL-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 13-VFQFN

Datasheet:: MP8763GL-Z.pdf

Description:: IC REG BUCK ADJ 12A 13QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP8763GL-Z from Monolithic Power Systems is a fully integrated, synchronous step-down DC/DC converter delivering 12A output current with 2.5V–18V input range (external 5V bias) or 4.5V–18V (internal bias), 0.611V–13V adjustable output, and adaptive Constant-On-Time control for ultrafast transient response in compact 3mm×4mm QFN-16 package. It powers core rails in set-top boxes, small-cell base stations, and flat-panel displays.

For engineers reviewing the MP8763GL-Z datasheet, MP8763GL-Z pinout, MP8763GL-Z application, or MP8763GL-Z equivalent, key selection criteria include its non-latch OCP/OVP/thermal shutdown, programmable 200kHz–1MHz switching frequency via FREQ pin, 1% reference voltage accuracy over –40°C to +125°C, and pre-bias start-up capability for reliable power sequencing.

Technical Context

The MP8763GL-Z implements adaptive Constant-On-Time (COT) control without an external oscillator, using input-voltage feed-forward through the FREQ pin to stabilize switching frequency across input variations. Its dual-mode operation-PWM in CCM and skip mode in DCM-enables high efficiency from full load to no-load by dynamically modulating switching frequency and disabling LS-FET conduction when inductor current reaches zero.

It integrates high-side and low-side MOSFETs with R_DS(ON) of 19.6mΩ and 5.2mΩ respectively, employs proprietary switching-loss-reduction techniques, and features a 20μA soft-start current source, open-drain power-good output with 2.5ms delay, and dual-level over-current protection (12A valley limit, –2.5A negative limit) with hiccup recovery.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	12A continuous - supports high-power SoC and FPGA core rails without external current sharing.
Input Voltage Range	2.5V–18V (with external 5V bias) or 4.5V–18V (internal bias) - enables flexible system-level power architecture design.
Output Voltage Range	0.611V–13V - covers DDR memory, CPU cores, GPU, and peripheral I/O supply requirements.
Reference Voltage Accuracy	±1% over –40°C to +125°C - ensures tight output regulation under thermal stress in industrial environments.
Switching Frequency	200kHz–1MHz (programmable via FREQ resistor) - balances efficiency vs. size: higher frequencies reduce LC filter footprint.
Protection Features	Non-latch OCP, OVP, thermal shutdown - prevents latch-up during fault conditions while enabling automatic recovery.
Soft-Start Control	Programmable via external capacitor (20μA charge current) - eliminates inrush current and avoids current-limit triggering during startup.

Pinout & Package

The MP8763GL-Z is housed in a thermally enhanced 3mm×4mm QFN-16 package with exposed thermal pad (PGND-connected), optimized for high-current power delivery and PCB heat dissipation.

Pin/Terminal	Circuit Role	Design Meaning
EN	Enable control input	Digital ON/OFF control; internal UVLO threshold <4.1V; resistor divider sets custom startup voltage.
FREQ	Frequency programming	Resistor-to-IN sets ON-time and stabilizes f_SW across input variation via feed-forward compensation.
FB	Feedback sensing	Monitors output via resistor divider; enables OVP detection and regulates V_OUT with 1% V_REF.
SS	Soft-start timing	External capacitor charged at 20μA determines controlled V_OUT ramp rate to prevent overshoot/inrush.
AGND	Analog ground reference	Separate ground for control circuitry; must be isolated from PGND to minimize noise coupling into FB path.
PG	Power-good indicator	Open-drain output asserts HIGH after 2.5ms delay when V_FB ≥91% V_REF; pulls LOW on OVP/UVP/failure.
VCC	Internal LDO output	4.8V regulated supply for gate drivers; disabled with external 5V bias to extend VIN down to 2.5V.
BST	Bootstrap supply	Capacitor between BST and SW provides floating gate drive for high-side MOSFET; requires low-ESR ceramic.
SW	Switch node	Connects to inductor and BST capacitor; carries high di/dt; requires wide copper pour and minimal loop area.
PGND	Power ground return	High-current return path for both MOSFETs; must connect directly to thermal pad and bulk input/output capacitors.
IN	Main input supply	Accepts 2.5V–18V (with external bias) or 4.5V–18V (internal bias); requires ≥10μF ceramic decoupling near pin.

Key Features

Feature	Design Value
Adaptive COT Control	Eliminates need for external compensation network and delivers sub-10μs load transient response without instability risk.
Pre-Bias Start-Up	Enables monotonic ramp-up even when output is pre-charged, preventing reverse current flow into powered downstream circuits.
Proprietary Switching-Loss Reduction	Optimizes dead-time and gate drive timing to minimize shoot-through and body-diode conduction losses at light loads.
Programmable Soft-Start	Adjustable ramp time prevents inrush-induced voltage droop on shared input rails and avoids false OCP triggering.
Non-Latch Protection Suite	OCP, OVP, and thermal shutdown recover automatically after fault clearance-no manual reset or power cycle required.

Applications

Set-Top Box Power Rails

Small-Cell Base Station RFIC Supply

Use Scenario: Powers SoC, memory, and tuner ICs in cable/satellite STBs requiring stable 1.0V/1.2V/1.8V rails under dynamic video decoding loads.

IC Role / Device Role / Timing Role: Primary buck regulator delivering 12A peak current with fast transient response to handle bursty MPEG decode and HDMI interface activity.

Use Value: Adaptive COT control maintains ±1% output regulation during 8A load steps (50ns rise time), eliminating need for large output capacitance.

Use Scenario: Supplies 3.3V/5V bias to RF transceivers and FEMs in 4G/5G small cells deployed in temperature-variable outdoor enclosures.

IC Role / Device Role / Timing Role: High-efficiency point-of-load converter operating from 12V intermediate bus, supporting -40°C to +85°C ambient with thermal shutdown at 150°C.

Use Value: 1% reference accuracy and non-latch thermal protection ensure uninterrupted operation during sustained transmit bursts without derating.

Flat-Panel Display Logic Board

Distributed Power System for Industrial PLC

Use Scenario: Generates 1.1V core voltage for display controller ASIC and 3.3V I/O rail for LVDS/TTL interface in 4K UHD monitors.

IC Role / Device Role / Timing Role: Synchronous buck converter with pre-bias start-up enabling hot-swap compatibility and safe power sequencing with panel backlight drivers.

Use Value: Pre-bias capability prevents reverse current into partially powered logic board during warm-restart, avoiding latch-up or data corruption.

Use Scenario: Provides isolated 5V/12V auxiliary rails for microcontroller, analog sensors, and communication interfaces in modular PLC backplanes.

IC Role / Device Role / Timing Role: Robust POL regulator with 2.5V–18V input range accepting wide-voltage industrial DC buses (e.g., 24V ±20%).

Use Value: Wide VIN range and hiccup-mode OCP allow continuous operation during brownouts and short-circuit events without system reboot.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
RTQ2132BGQW	4.5V–18V input, 12A, fixed 500kHz f_SW, no FREQ pin, lower quiescent current (400μA)	Lacks programmable frequency and adaptive COT; better suited for noise-sensitive audio subsystems	Select when fixed-frequency EMI control is prioritized over transient performance.
TPS546D24RSAR	4.5V–18V input, 12A, PMBus interface, digital control, 0.5% V_REF accuracy	Requires external EEPROM and firmware; supports telemetry, margining, and fault logging	Select when remote monitoring, dynamic voltage scaling, or compliance reporting is required.

Compared with RTQ2132BGQW and TPS546D24RSAR, the MP8763GL-Z offers superior transient response via adaptive COT and greater design flexibility with programmable frequency and soft-start, making it optimal for cost-sensitive, high-dynamic-load applications where analog simplicity and fast load-step immunity are critical.

Availability

MP8763GL-Z is available at Aetrix Electronics and suitable for set-top box manufacturing, small-cell base station deployment, and flat-panel display production requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP8763GL-Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan, and global distribution through authorized partners.

The MP8763 belongs to MPS's high-current monolithic buck converter product line, engineered for space-constrained, thermally demanding applications in consumer, telecom, and industrial markets where integration, efficiency, and reliability are paramount.

FAQ

What is the minimum input voltage supported by MP8763GL-Z?

The MP8763GL-Z supports 2.5V minimum input voltage when an external 5V bias is applied to the VCC pin, bypassing the internal LDO. With internal bias only, the minimum input is 4.5V. This dual-bias architecture allows system designers to extend operation into low-voltage battery or backup-supply scenarios without sacrificing regulation accuracy or protection integrity.

How does the MP8763GL-Z achieve ultrafast transient response?

The MP8763GL-Z uses adaptive Constant-On-Time (COT) control that senses feedback voltage deviation in real time and adjusts switching immediately-without requiring loop compensation components. Its one-shot ON-timer responds within nanoseconds to load steps, and the absence of a traditional error amplifier eliminates phase-margin constraints, enabling stable regulation under 10A/μs load transients.

Can MP8763GL-Z start up into a pre-biased output?

Yes. The MP8763GL-Z supports monotonic pre-bias start-up: when the FB pin senses a non-zero output voltage at enable, it holds both high-side and low-side MOSFETs off until the SS capacitor voltage exceeds the sensed FB voltage. This prevents reverse current flow and ensures controlled, glitch-free ramp-up-even when powering downstream circuits already energized.

What is the purpose of the FREQ pin, and how is it configured?

The FREQ pin sets the switching frequency from 200kHz to 1MHz by connecting a resistor between FREQ and IN. The input voltage feeds forward into the ON-time timer, stabilizing f_SW across VIN variations. For example, a 453kΩ resistor yields ~500kHz at 12V input. Layout best practice requires short, direct routing to minimize noise coupling and ensure accurate frequency setting.

Does MP8763GL-Z include over-voltage protection, and how does it trigger?

Yes. The MP8763GL-Z provides non-latch over-voltage protection (OVP) triggered when the FB voltage exceeds 117–123% of V_REF (i.e., ~715mV–755mV for a 1.2V output). Upon detection, the high-side MOSFET shuts off immediately, and the device enters hiccup mode-discharging SS, retrying soft-start-until the fault clears, protecting downstream loads from overvoltage damage.

What thermal management considerations apply to the QFN-16 package?

The MP8763GL-Z's 3mm×4mm QFN-16 package has θ_JA = 46°C/W on a 4-layer PCB per JESD51-7. To maintain T_J ≤125°C at 12A, the PCB must include a solid thermal pad tied to ≥4 thermal vias (0.3mm diameter) to inner ground planes, plus ≥2cm² copper pour around the package. Avoid placing sensitive analog traces beneath the thermal pad.

Is the MP8763GL-Z RoHS and halogen-free compliant?

Yes. The MP8763GL-Z is lead-free, halogen-free, and fully compliant with the EU RoHS Directive 2011/65/EU. MPS confirms green status on its official quality assurance portal, and all packaging materials meet IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements for standard surface-mount assembly.

MP8763GL-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 13-VFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 4.5V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.611V

Voltage - Output (Max):: 13V

Current - Output:: 12A

Frequency - Switching:: 200kHz ~ 1MHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 13-QFN (3x4)

MP8763GL-Z FAQ

1.How can I place an order for MP8763GL-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP8763GL-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MP8763GL-Z reliable?

The price and inventory of MP8763GL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8763GL-Z is usually 5 days.

3.What payment methods are accepted for MP8763GL-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8763GL-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP8763GL-Z?

MP8763GL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP8763GL-Z order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MP8763GL-Z?

For technical support, including MP8763GL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8763GL-Z requirements.

6.How does Aetrix verify that MP8763GL-Z is sourced from the original manufacturer or authorized distributors?

All MP8763GL-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP8763GL-Z meets industry standards.

7.What is the process for return or replacement of MP8763GL-Z?

All MP8763GL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8763GL-Z, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MP8763GL-Z part is unused and in its original packaging.

Return procedure for MP8763GL-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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