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

Monolithic Power Systems Inc. MP8764GLE-Z

Name: MP8764GLE-Z
Brand: Monolithic Power Systems Inc.
SKU: MP8764GLE-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP8764GLE-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 16-PowerVFQFN

Datasheet:: MP8764GLE-Z.pdf

Description:: IC REG BUCK ADJ 12A 16QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP8764GLE-Z from Monolithic Power Systems is a fully integrated synchronous step-down DC/DC converter delivering 12A output current with input range of 4.5V–18V (internal bias) or 2.5V–18V (external 5V bias), 0.611V–13V adjustable output, latch-off over-current protection, and Constant-On-Time (COT) control for ultrafast transient response in compact QFN 3×4mm package. It targets high-density power rails in telecom and consumer electronics.

For engineers reviewing the MP8764GLE-Z datasheet, MP8764GLE-Z pinout, MP8764GLE-Z application, or MP8764GLE-Z equivalent, key selection criteria include its 12A continuous output capability, programmable 200kHz–1MHz switching frequency via FREQ pin, latch-off OCP behavior, 1.5% reference voltage accuracy over –40°C to +125°C, and integrated high-side (21mΩ) and low-side (7mΩ) MOSFETs.

Technical Context

The MP8764 operates in adaptive COT mode-no external compensation required-with feed-forward frequency stabilization ensuring near-constant switching frequency across input voltage variation. Its internal architecture integrates both power MOSFETs, a 4.8V VCC LDO, bootstrap driver, soft-start current source (20μA), and open-drain power-good comparator with 97%/90% VFB thresholds and 2.5ms delay.

Protection logic includes three-tier current limiting: high-side peak limit (cycle-by-cycle), low-side valley limit (12A), and low-side negative limit (–2.5A), plus OVP (latch/non-latch), thermal shutdown at 150°C with 25°C hysteresis, and UVLO on VCC (3.9V nominal, programmable via EN).

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	12A continuous-supports high-power SoC/FPGA core rails without external MOSFETs.
Input Voltage Range	4.5V–18V (internal bias) or 2.5V–18V (external 5V bias)-enables flexibility in system-level supply architecture.
Output Voltage Range	0.611V–13V adjustable via FB resistor divider-covers CPU cores, DDR, I/O, and auxiliary rails.
Reference Voltage Accuracy	±1.5% over –40°C to +125°C junction-ensures tight regulation under thermal stress in enclosed systems.
Switching Frequency	200kHz–1MHz programmable via FREQ pin resistor-balances efficiency vs. size of LC filter components.
R_DS(ON)	High-side: 21mΩ; Low-side: 7mΩ @ 25°C-minimizes conduction loss at full load, enabling >92% peak efficiency.
OCP Type	Latch-off over-current protection-prevents repeated fault cycling during sustained overload or short-circuit.

Pinout & Package

MP8764GLE-Z is housed in a thermally enhanced 16-pin QFN package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad (PGND-connected) for efficient heat dissipation in high-current applications.

Pin/Terminal	Circuit Role	Design Meaning
EN	Enable control input	Digital ON/OFF control; supports automatic startup via resistive divider and pre-bias safe monotonic start.
FREQ	Frequency programming node	Resistor-to-IN sets switching frequency; enables feed-forward compensation for stable f_SW across input variation.
FB	Voltage feedback sense	High-impedance input (50–100nA) for precision output regulation; requires Kelvin routing to minimize noise coupling.
SS	Soft-start timing capacitor	20μA internal current source charges external cap to control output ramp rate and avoid inrush current limit trip.
AGND	Analog ground reference	Separate ground for control circuitry-must be star-connected to PGND near IC to avoid noise injection into feedback path.
PG	Open-drain power-good signal	Indicates VOUT within ±3% of target after 2.5ms delay; used for sequencing and system fault detection.
VCC	Internal 4.8V LDO output	Powers gate drivers and control logic; requires ≥1μF X7R/X5R ceramic decoupling close to pin.
BST	Bootstrap supply node	Connects to SW via 0.1μF ceramic capacitor to generate floating gate drive for high-side MOSFET.
IN	Main power input	Accepts up to 18V; requires low-ESR bulk capacitance and wide PCB traces to handle 12A peak currents.
PGND	Power ground return	Thermally connected to exposed pad; carries high di/dt switch node return current-requires solid copper pour and multiple vias.
SW	Switch node output	Drives external inductor; swings from ~0V to VIN; requires minimized loop area to reduce EMI and voltage overshoot.

Key Features

Feature	Design Value
Adaptive Constant-On-Time (COT) Control	Eliminates need for external compensation network while delivering <10μs load transient response for CPU/GPU dynamic loads.
Integrated Dual MOSFETs	21mΩ high-side + 7mΩ low-side R_DS(ON) reduces conduction loss and simplifies layout versus controller+discrete solution.
Latch-Off Over-Current Protection	Shuts down permanently on sustained overcurrent (>180μs) or VFB <300mV-prevents thermal runaway in short-circuit conditions.
Pre-Bias Safe Startup	Monitors SS voltage vs. FB during power-up; disables switching until SS exceeds pre-biased output-ensures monotonic rise into loaded systems.
Programmable Soft Start	20μA constant-current source charges external capacitor to set precise ramp time-avoids inrush-induced current-limit tripping.

Applications

Set-Top Boxes

XDSL Modem / DSLAM

Use Scenario: Powering multi-core SoC, video decoder, and memory subsystems in compact consumer enclosures with limited airflow.

IC Role / Device Role / Timing Role: Primary 12A buck regulator generating 1.0V/1.1V core rail with fast transient response to video processing bursts.

Use Value: Integrated MOSFETs and COT control eliminate external compensation and reduce board space by >30% vs. discrete solutions.

Use Scenario: Delivering stable 3.3V/5V rails to DSL line cards and PHY interfaces operating in temperature-varying telco cabinets.

IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with latch-off OCP to prevent field failures from cable shorts or surge events.

Use Value: 150°C thermal shutdown and 2.5V–18V input range ensure reliable operation across varying AC-DC adapter outputs and brownout conditions.

Small-Cell Base Stations

Flat Panel Television

Use Scenario: Supplying FPGA, RF transceiver, and baseband processor rails in outdoor small-cell units with constrained thermal design.

IC Role / Device Role / Timing Role: 12A synchronous buck providing 1.2V core voltage with programmable 500kHz switching to balance EMI and efficiency.

Use Value: QFN 3×4mm package with exposed thermal pad enables >2.7W power dissipation in minimal footprint for dense RF modules.

Use Scenario: Generating 12V backlight and 1.8V/3.3V logic rails in slim LED TV mainboards where height and thermal margin are critical.

IC Role / Device Role / Timing Role: Compact, high-current buck converter supporting rapid power-on sequencing and pre-bias startup into charged display capacitors.

Use Value: Pre-bias safe startup and PG signal enable clean system-level power sequencing without external supervisors.

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
MPQ8764GL-A	Automotive-grade AEC-Q100 qualified version with same electrical specs and pinout; higher temp grade (–40°C to +150°C).	Required for automotive infotainment and ADAS power rails; not suitable for cost-sensitive consumer designs.	Select when automotive qualification and extended junction temperature are mandatory.
RTQ2132BGQW	12A buck with similar 2.5V–18V input but uses current-mode control; lacks latch-off OCP (auto-retry); 1.2% ref accuracy.	Better suited for applications requiring auto-recovery from intermittent faults; less robust against sustained shorts.	Choose if system-level fault management handles retry logic and latch-off is undesirable.

Compared with MP8764GLE-Z, MPQ8764GL-A adds AEC-Q100 compliance and extended temperature rating at higher cost, while RTQ2132BGQW trades latch-off OCP for current-mode stability and auto-retry-making MP8764GLE-Z optimal for industrial and telecom systems needing definitive fault containment.

Availability

MP8764GLE-Z is available at Aetrix Electronics and suitable for set-top boxes, small-cell base stations, and flat panel television designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP8764GLE-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 over two decades of expertise in DC/DC conversion, motor drivers, and LED lighting controllers.

The MP8764 belongs to MPS's high-current monolithic buck converter product line, engineered for space-constrained, high-efficiency power delivery in telecom infrastructure, consumer electronics, and industrial equipment where integration, reliability, and thermal performance are critical.

FAQ

What is the minimum recommended input voltage for MP8764GLE-Z when using internal bias?

The MP8764GLE-Z requires a minimum 4.5V input when operating with internal VCC bias. Below this, the internal 4.8V LDO cannot regulate, causing UVLO activation and disabling the converter. External 5V bias allows operation down to 2.5V input, but requires separate 5V supply routing.

How does the latch-off OCP behave during startup?

During soft-start, latch-off OCP is disabled until SS completes. After SS ends, if VFB drops below 300mV *and* current limit triggers, or if overcurrent persists >180μs, the device latches off-requiring EN cycle or power recycle to recover. This prevents thermal damage during sustained shorts.

Can MP8764GLE-Z operate with ceramic output capacitors only?

Yes-MP8764GLE-Z supports ceramic output caps via external ramp compensation (R4/C4 network). Without it, instability may occur due to insufficient ESR-related feedback slope; the datasheet provides exact design equations to size R4 and C4 for stable PWM operation.

What is the thermal pad connection requirement for the QFN package?

The exposed thermal pad on the MP8764GLE-Z QFN must be soldered to a solid PGND copper pour with ≥4 thermal vias (0.3mm diameter) connecting to inner ground planes. This ensures θ_JA ≤46°C/W and prevents junction temperature exceedance at 12A load in still air.

Is the PG signal compatible with 3.3V logic systems?

Yes-the PG pin is open-drain and rated for ≤5.5V pull-up. A 3.3V-compatible pull-up resistor (e.g., 100kΩ to 3.3V) is valid; PG asserts low when VFB <90% or >120% of target, and high (after 2.5ms delay) when VFB is within 97–100% of nominal-enabling direct interface with 3.3V microcontrollers.

Does MP8764GLE-Z support forced PWM mode at light load?

No-MP8764GLE-Z automatically transitions between CCM (PWM) and DCM (skip mode) based on load. There is no pin or register to force continuous switching; light-load efficiency is optimized via DCM operation and tri-state LS-FET control, reducing switching losses below ~1A.

MP8764GLE-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 16-PowerVFQFN

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:: 16-QFN (3x4)

MP8764GLE-Z FAQ

1.How can I place an order for MP8764GLE-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP8764GLE-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 MP8764GLE-Z reliable?

The price and inventory of MP8764GLE-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8764GLE-Z is usually 5 days.

3.What payment methods are accepted for MP8764GLE-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8764GLE-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP8764GLE-Z?

MP8764GLE-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP8764GLE-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 MP8764GLE-Z?

For technical support, including MP8764GLE-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8764GLE-Z requirements.

6.How does Aetrix verify that MP8764GLE-Z is sourced from the original manufacturer or authorized distributors?

All MP8764GLE-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 MP8764GLE-Z meets industry standards.

7.What is the process for return or replacement of MP8764GLE-Z?

All MP8764GLE-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8764GLE-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 MP8764GLE-Z part is unused and in its original packaging.

Return procedure for MP8764GLE-Z:

1.Submit a request within 90 days.

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

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