Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Special Purpose Regulators

Monolithic Power Systems Inc. MPQ4263GQVE-0000-AEC1-P

Name: MPQ4263GQVE-0000-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ4263GQVE-0000-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MPQ4263GQVE-0000-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Special Purpose Regulators

Package:: 20-PowerVFQFN

Datasheet:: MPQ4263GQVE-0000-AEC1-P.pdf

Description:: 36V, 140W BUCK-BOOST WITH INTEGR

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,256

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MPQ4263GQVE-0000-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 automotive-qualified buck-boost DC/DC converter with two integrated low-side MOSFETs, 3.6V–36V input range, 1V–36V output range, and up to 140W peak output power. It delivers USB PD 3.1 EPR/PPS-compliant power delivery via I²C-configurable voltage/current regulation and high-side current sensing, targeting in-vehicle USB-C charging ports and DC power supplies.

For engineers reviewing the MPQ4263GQVE-0000-AEC1-P datasheet, MPQ4263GQVE-0000-AEC1-P pinout, MPQ4263GQVE-0000-AEC1-P application, or MPQ4263GQVE-0000-AEC1-P equivalent, this device supports I²C register programming of VREF (0.1V–2.147V), selectable 280/420/580kHz switching frequency, forced PWM or auto PFM/PWM mode, and accurate ±5% CC current limit with IMON monitoring - critical for USB PD hub and automotive DC supply design validation.

Technical Context

The MPQ4263GQVE-0000-AEC1-P implements a fixed-frequency, multi-mode buck-boost topology with seamless transitions between buck, boost, and buck-boost operating regions using VIN/VOUT ratio-based mode control (buck-boost-to-buck threshold = 120%, buck-boost-to-boost = 82%). Its dual bootstrap gate drivers (HG1/HG2) support external high-side MOSFETs, while integrated LS-FETs reduce BOM count and improve thermal performance in QFN-20 (3mm×5mm) wettable flank package.

Control architecture includes a PLL-synchronized oscillator, programmable soft-start (1ms), line-drop compensation (100mV @ 1A), and dual OVP thresholds (trim options: 24.5–28.5V or 37–41V). Fault protection integrates high-side current-sense-based CC limiting, output OVP/OCP, thermal shutdown at 160°C with 20°C hysteresis, and hiccup-mode recovery (50ms off-time).

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.6V to 36V - supports 12V/24V automotive battery rails with 2.8V falling VIN hold-up when VOUT > 3.5V
Output Voltage Range	1V to 36V - programmable via FB resistor divider; I²C-adjustable VREF enables dynamic voltage scaling for USB PD EPR
Peak Output Power	140W - achievable at VIN ≥ 19V with proper thermal management on 4-layer PCB per θJA = 9.1°C/W
Switching Frequency	280/420/580kHz - selectable via I²C; dithering ±8% reduces EMI peak emissions
Current Limit Accuracy	±5% - achieved via high-side current sense (ISEN+/ISEN−) and factory-trimmed OTP calibration
Efficiency	Up to 98% - measured at 12V→5V/5A, 420kHz, forced PWM, CCM, with 4.7µH inductor and 5mΩ RSENSE
I²C Interface	Standard-mode (400kHz) and fast-mode (1000kHz) compatible - supports real-time VREF, fSW, OVP, and operation mode reconfiguration

Pinout & Package

MPQ4263GQVE-0000-AEC1-P is housed in a thermally enhanced QFN-20 (3mm × 5mm) package with wettable flanks for automated optical inspection (AOI) and improved solder joint reliability in automotive applications.

Pin/Terminal	Circuit Role	Design Meaning
1 SCL	I²C clock input	Drives synchronous serial communication with host controller; requires pull-up to VCC
2 SDA	I²C data bidirectional line	Carries register read/write commands and status data; open-drain, requires pull-up
3 ALT	I²C alert output	Open-drain active-low interrupt signal indicating fault conditions (OVP, OCP, TSD)
4 FB	Voltage feedback input	Connects to resistor divider tap; sets regulated VOUT via internal 330mV reference (±3%)
5 ISEN− / 6 ISEN+	High-side current sense differential inputs	Measures load current across external sense resistor; enables ±5% CC accuracy and IMON output
7 VOUT	Output voltage sense and VCC source	Provides internal 5V LDO bias when VOUT ≥ 6.4V; decoupled with 0.47–1µF capacitor
8 BST2 / 19 BST1	Bootstrap supply for HG2/HG1 drivers	Each connects to SW2/SW1 via 0.22µF capacitor to enable high-side NMOS gate drive
9 HG2 / 18 HG1	High-side gate drivers	Drive external high-side switches (SWD/SWA); sink/source capability: 1.8A/3.3A (HG2), 0.8A/1.2A (HG1)
10 VCC	Internal 5V LDO output	Powers internal logic; must be decoupled locally; sourced from VIN or VOUT depending on operating condition
11 AGND	Analog ground reference	Separate from PGND; connects to VCC capacitor ground node to minimize noise coupling into FB/ISEN
12,15 PGND	Power ground return	High-current return path for LS-FETs and inductor; requires wide copper traces and multiple vias to thermal pad
13 SW2 / 14 SW1	Buck-boost switch nodes	Connect to opposite ends of power inductor; SW1 interfaces with buck HS-FET (SWA), SW2 with boost HS-FET (SWD)
16 IMON	Current monitor analog output	Scaled representation of ISEN+–ISEN− voltage; gain configurable via I²C (68V/V or 34V/V)
17 EN	Enable input with hysteresis	Active-high logic; rising threshold = 1.22V ±5%, hysteresis = 200mV; includes internal 2.5MΩ pull-down

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Rated for −40°C to +150°C junction temperature; validated for automotive powertrain and infotainment systems
I²C-configurable VREF	0.1V–2.147V range with 1mV resolution enables precise USB PD 3.1 EPR voltage steps (e.g., 28V, 36V)
Integrated LS-FETs + external HS-FET support	Reduces external component count while enabling scalable power delivery up to 140W with optimized thermal layout
Accurate high-side current sensing	Eliminates need for low-side shunt placement; avoids ground loop errors and improves load transient response fidelity
Programmable line drop compensation	Adjusts output voltage dynamically based on load current (100mV @ 1A) to maintain regulation at remote loads
OTP memory with factory preconfigurations	"0000" default config supports full 140W operation; "0001" (420kHz) and "0002" (280kHz) optimize for 60W/100W USB PD use cases

Applications

USB PD Charging Port

Automotive DC Power Supply

Use Scenario: In-vehicle 100W+ USB-C charging port supporting USB PD 3.1 Extended Power Range (EPR) and Programmable Power Supply (PPS).

IC Role / Device Role / Timing Role: Primary buck-boost regulator managing VIN (9–16V) to dynamically adjustable VOUT (5–28V) under I²C command from USB PD controller.

Use Value: Delivers ±5% CC accuracy and <100mV load regulation across 0–5A, enabling certified EPR compliance without external DAC or op-amp compensation.

Use Scenario: Centralized 12V/24V-to-15V/20V conversion for ADAS camera modules, radar units, or infotainment head units requiring stable, low-noise rail.

IC Role / Device Role / Timing Role: High-efficiency (up to 98%) buck-boost regulator with programmable soft-start (1ms) and thermal foldback to ensure safe cold-cranking startup.

Use Value: Maintains regulation during 6V–36V input transients (e.g., load dump, cranking) with <2% line regulation and 78° phase margin at 5A load.

USB PD Hub

Wireless Charging Transmitter

Use Scenario: Multi-port USB-C hub delivering simultaneous 60W+ power to laptop and 15W to peripherals, with independent voltage/current control per port.

IC Role / Device Role / Timing Role: Configurable buck-boost stage providing programmable VOUT and IMON feedback to microcontroller for per-port power arbitration.

Use Value: I²C-accessible IMON output (68V/V gain) enables real-time current telemetry without additional ADC channels, reducing system BOM cost.

Use Scenario: Input stage of 15W/30W Qi-compliant wireless charging transmitter requiring adaptive input voltage (e.g., 9V–20V) to maximize coil efficiency.

IC Role / Device Role / Timing Role: Buck-boost regulator supplying regulated VDD to power amplifier stage; supports dynamic VOUT adjustment during foreign object detection (FOD) events.

Use Value: Seamless buck-boost mode transition (120%/82% VIN/VOUT thresholds) prevents output droop during FOD-induced load changes, ensuring uninterrupted communication.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck-boost converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ4269GQVE-AEC1	Higher 180W peak power, 40V max VIN, same QFN-20 package and I²C interface but no OTP preconfigurations	Targets next-gen 140W+ USB PD EPR systems requiring extended input range and higher thermal headroom	Select when >140W output or 36–40V input tolerance is required; shares identical pinout and firmware compatibility
LM5175QRGERQ1	Non-synchronous buck-boost with external MOSFETs, no integrated LS-FETs or I²C interface; 3–42V input, 150W capability	Used in cost-sensitive industrial DC/DC where programmability is secondary to raw power density and discrete FET selection flexibility	Choose when discrete gate drive tuning, higher VIN (>36V), or absence of I²C dependency is prioritized over USB PD integration

Compared with MPQ4269GQVE-AEC1, the MPQ4263GQVE-0000-AEC1-P offers factory-optimized OTP configurations for rapid USB PD deployment, while LM5175QRGERQ1 trades integrated control for greater external FET flexibility - making MPQ4263 optimal for AEC-Q100-compliant, I²C-managed automotive USB power systems.

Availability

MPQ4263GQVE-0000-AEC1-P is available at Aetrix Electronics and suitable for USB PD charging ports, automotive DC power supplies, and wireless charging transmitters requiring stable component supply, AEC-Q100 Grade 1 qualification, and I²C-based programmability.

Supply support for MPQ4263GQVE-0000-AEC1-P 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 power management ICs, with over two decades of expertise in DC/DC converters, motor drivers, and LED controllers.

The MPQ4263 belongs to MPS's automotive-grade buck-boost product line, designed specifically for USB PD 3.1 EPR, PPS, and high-reliability vehicle power systems requiring AEC-Q100 qualification, I²C configurability, and integrated high-efficiency power stages.

FAQ

What is the purpose of the ISEN+ and ISEN− pins?

ISEN+ and ISEN− form a differential input pair for high-side current sensing across an external sense resistor. This configuration enables accurate ±5% output current limiting and feeds the IMON analog monitor output. Unlike low-side sensing, it avoids ground path interference and preserves load-side ground integrity - essential for USB PD compliance and multi-rail systems.

Can MPQ4263GQVE-0000-AEC1-P operate without an external USB PD controller?

Yes - it can function as a standalone buck-boost regulator using fixed resistor feedback (FB pin) and EN pin control. However, full USB PD 3.1 EPR/PPS functionality (e.g., dynamic VOUT/IOUT negotiation, AVS) requires an external PD controller communicating via I²C. The "0000" OTP config provides default 140W-ready settings for immediate evaluation.

How does the VCC pin derive its supply?

VCC is an internal 5V LDO output powered either from VIN (when VIN ≥ 6.4V) or from VOUT (when VOUT ≥ 6.8V), automatically selecting the higher valid source. This dual-source architecture ensures continuous bias during input brownout or output ramp-up, eliminating need for external bias supplies in automotive start-stop cycles.

What thermal derating applies above 25°C ambient?

With θJA = 9.1°C/W (QFN-20), maximum continuous power drops linearly: at TA = 85°C, PD(MAX) = (150°C − 85°C) / 9.1 ≈ 7.1W - but actual usable output power depends on PCB layout. On a 4-layer 64mm×64mm board, 140W is achievable only at TA ≤ 45°C with forced airflow or heatsinking per thermal simulation data in Rev. 1.0 datasheet Figure 12.

Is the "0000" OTP configuration reprogrammable?

No - the OTP memory is one-time programmable and factory-set. "0000" is the default configuration enabling full 140W capability, 420kHz switching, and default VREF = 0.5V. Alternative codes like "0001" and "0002" are pre-programmed for 60W and 100W USB PD use cases but cannot be modified in the field.

What is the minimum inductor value supported?

The recommended inductor is 4.7µH (RDC = 8mΩ) for 420kHz operation, but the device supports values down to 2.2µH with appropriate compensation. Minimum on/off times (180ns each) constrain practical lower limits; using <3.3µH may require loop compensation adjustment and increases peak current stress on internal LS-FETs.

Does the ALT pin support level-shifting for 3.3V microcontrollers?

Yes - ALT is an open-drain output with 20Ω pull-low resistance and ±2kV HBM ESD rating. When pulled up to 3.3V, it asserts active-low fault signals compatible with 3.3V logic. No level-shifter is needed, but a 10kΩ pull-up to the host MCU's VDD is recommended for noise immunity in automotive environments.

MPQ4263GQVE-0000-AEC1-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 20-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Converter, Automotive

Voltage - Input:: 3.6V ~ 36V

Number of Outputs:: 1

Voltage - Output:: 3.6V ~ 36V

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 20-QFN (3x5)

MPQ4263GQVE-0000-AEC1-P FAQ

1.How can I place an order for MPQ4263GQVE-0000-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ4263GQVE-0000-AEC1-P 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 MPQ4263GQVE-0000-AEC1-P reliable?

The price and inventory of MPQ4263GQVE-0000-AEC1-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4263GQVE-0000-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ4263GQVE-0000-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4263GQVE-0000-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4263GQVE-0000-AEC1-P?

MPQ4263GQVE-0000-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ4263GQVE-0000-AEC1-P 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 MPQ4263GQVE-0000-AEC1-P?

For technical support, including MPQ4263GQVE-0000-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4263GQVE-0000-AEC1-P requirements.

6.How does Aetrix verify that MPQ4263GQVE-0000-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ4263GQVE-0000-AEC1-P 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 MPQ4263GQVE-0000-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ4263GQVE-0000-AEC1-P?

All MPQ4263GQVE-0000-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4263GQVE-0000-AEC1-P, 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 MPQ4263GQVE-0000-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ4263GQVE-0000-AEC1-P:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…