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

Monolithic Power Systems Inc. MPQ4263GQVE-0001-AEC1-P

Name: MPQ4263GQVE-0001-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ4263GQVE-0001-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ4263GQVE-0001-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Special Purpose Regulators

Package:: 20-PowerVFQFN

Datasheet:: MPQ4263GQVE-0001-AEC1-P.pdf

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

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Product details

Overview

MPQ4263GQVE-0001-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 automotive buck-boost DC/DC converter with two integrated low-side MOSFETs, 3.6V–36V input range, 1V–36V output range, and I²C-configurable reference voltage (0.1V–2.147V). It delivers up to 140W peak output power, supports USB PD 3.1 EPR/PPS, and implements high-side current sensing for ±5% accurate CC current limiting in USB PD charging ports.

For engineers reviewing the MPQ4263GQVE-0001-AEC1-P datasheet, MPQ4263GQVE-0001-AEC1-P pinout, MPQ4263GQVE-0001-AEC1-P application, or MPQ4263GQVE-0001-AEC1-P equivalent, this device is selected for automotive USB PD hubs requiring programmable VREF, precise IMON current monitoring, and robust OVP/OCP/TSD protection under wide VIN–VOUT crossover conditions.

Technical Context

The MPQ4263 operates in fixed-frequency buck, boost, and buck-boost modes using a proprietary control strategy that ensures seamless mode transitions and stable regulation across VIN/VOUT crossovers. Its dual bootstrap gate drivers (HG1/HG2) support external high-side MOSFETs, while internal LS-FETs handle synchronous rectification.

It integrates an I²C interface with OTP memory for factory-programmed configurations (e.g., 420kHz fSW for 60W PD), real-time IMON analog current monitor output, and line-drop compensation via RSENS. The device uses high-side current sensing with dedicated ISEN+/ISEN− inputs and supports forced PWM or auto PFM/PWM operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.6V to 36V - Enables direct connection to 12V/24V automotive batteries with UVLO hysteresis of 200mV.
Output Voltage Range	1V to 36V - Supports USB PD 5V/9V/15V/20V/28V profiles and automotive auxiliary rails without external LDOs.
Peak Output Power	140W at VIN ≥ 19V - Achieved with integrated LS-FETs and optimized thermal design in QFN-20 package (θJA = 9.1°C/W).
Switching Frequency	Selectable 280/420/580kHz - Configurable via I²C to balance efficiency (e.g., 420kHz for 60W PD) and EMI performance.
Current Sense Accuracy	±5% CC limit with high-side sensing - Enables precise USB PD current negotiation and compliance with USB PD 3.1 EPR requirements.
I²C Interface	400–1000kHz, 1.35V VIH - Allows real-time configuration of VREF, OVP thresholds, and operating mode without hardware changes.
Thermal Protection	160°C shutdown with 20°C hysteresis - Prevents permanent damage during sustained overload or poor PCB thermal layout.

Pinout & Package

MPQ4263GQVE-0001-AEC1-P is housed in a wettable-flank QFN-20 (3mm × 5mm) package rated for AEC-Q100 Grade 1 (−40°C to +150°C TJ), supporting automated optical inspection (AOI) and high-reliability automotive solder joints.

Pin/Terminal	Circuit Role	Design Meaning
1 SCL	I²C clock input	Accepts 400–1000kHz clock for register read/write; requires pull-up to VCC.
2 SDA	I²C bidirectional data line	Open-drain interface for configuring VREF, fSW, OVP, and operational modes.
3 ALT	I²C alert output	Active-low open-drain flag indicating fault conditions (OVP, OCP, TSD) or register updates.
4 FB	Voltage feedback input	Connects to resistor divider tap; sets VOUT via 330mV/500mV/2V reference options.
5 ISEN− / 6 ISEN+	High-side current sense differential inputs	Measure voltage across external sense resistor (RSENS) for ±5% accurate CC limiting.
16 IMON	Analog current monitor output	Provides amplified representation of ISEN+–ISEN− voltage (68V/V or 34V/V gain) for system telemetry.
17 EN	Enable input	Logic-high (>1.22V) enables switching; includes 3MΩ internal pull-down for controlled shutdown discharge.
18 HG1 / 19 BST1 / 14 SW1	Buck high-side gate drive path	HG1 drives external HS-FET; BST1 supplies floating gate voltage for SW1 node; SW1 connects to inductor.
9 HG2 / 8 BST2 / 13 SW2	Boost high-side gate drive path	HG2 drives external HS-FET; BST2 supplies floating gate voltage for SW2 node; SW2 connects to inductor.
11 AGND / 12,15 PGND	Analog & power ground	AGND ties to VCC capacitor ground; PGND requires low-inductance copper pour and multiple vias for thermal/EMI integrity.

Key Features

Feature	Design Value
Integrated LS-FETs + HS gate drivers	Eliminates need for four external MOSFETs and discrete drivers in buck-boost topology, reducing BOM count and layout area.
I²C-configurable VREF (0.1–2.147V)	Enables dynamic output voltage adjustment for USB PD PPS/EPR without changing feedback resistors.
Accurate IMON current monitor	Provides system-level current telemetry with ±3% gain accuracy, supporting real-time load management and diagnostics.
Line drop compensation	Compensates for IR drop in long cables by injecting up to 600mV correction at full load, maintaining tight VOUT regulation.
OTP-configured startup settings	Factory-programmed "0001" code sets 420kHz fSW and 60W PD profile, eliminating boot-time I²C initialization delays.

Applications

USB PD Charging Port

Automotive DC Power Supply

Use Scenario: On-board 60W USB-C charging port in vehicle infotainment head unit.

IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering dynamically negotiated VBUS (5–20V) with PPS support.

Use Value: Meets USB PD 3.1 EPR spec with ±5% CC accuracy and <100mV load regulation at 5A, enabling certified fast charging.

Use Scenario: Centralized 12V-to-28V conversion for ADAS camera module power rail.

IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter supplying isolated DC/DC stages.

Use Value: Delivers 140W peak power with 98% efficiency at 12V→20V, minimizing thermal stress in confined engine bay space.

USB PD Hub

Wireless Charging Transmitter

Use Scenario: Multi-port automotive docking station supporting simultaneous laptop + phone charging.

IC Role / Device Role / Timing Role: Programmable VOUT source with independent I²C control per port via multiplexed bus.

Use Value: I²C addressability and OTP configuration allow differentiated VOUT profiles (e.g., 9V@3A + 15V@2A) without additional ICs.

Use Scenario: 15W Qi-compliant wireless charging pad powered from 12V battery.

IC Role / Device Role / Timing Role: Stable 12V→12V or 12V→15V supply for inverter driver stage with tight ripple control.

Use Value: 420kHz fixed-frequency operation minimizes EMI interference with 110–205kHz Qi carrier, verified in EMC pre-scan.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ4263GQVE-0000-AEC1	Default OTP config: 280kHz fSW, 100W PD profile, VREF = 500mV	Suitable for higher-power 100W USB PD applications requiring lower switching loss	Select when prioritizing peak efficiency over EMI sensitivity; requires different thermal derating.
MPQ4263GQVE-0002-AEC1	OTP config: 280kHz fSW, 100W PD profile, VREF = 2V	Optimized for fixed 20V/28V outputs in non-PPS systems like infotainment displays	Choose for simplified design where dynamic VREF adjustment is unnecessary and higher VOUT stability is critical.

Compared with MPQ4263GQVE-0001-AEC1-P, the 0000 variant trades higher peak power (100W vs. 60W) for reduced switching frequency (280kHz), while the 0002 variant locks VREF at 2V for fixed-output applications-neither supports the same PPS flexibility or 420kHz EMI optimization.

Availability

MPQ4263GQVE-0001-AEC1-P is available at Aetrix Electronics and suitable for automotive USB PD charging ports, infotainment power supplies, and ADAS subsystems requiring stable component supply with AEC-Q100 Grade 1 qualification and wettable-flank QFN packaging.

Supply support for MPQ4263GQVE-0001-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 core expertise in DC/DC converters, motor drivers, and LED controllers.

The MPQ4263 product line targets automotive-grade USB PD and high-reliability DC/DC conversion, designed specifically for AEC-Q100 compliance, wide-input buck-boost operation, and I²C programmability in space-constrained vehicle platforms.

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 (RSENS). This enables ±5% accurate constant-current limiting and real-time current monitoring via the IMON pin, critical for USB PD compliance and system-level load telemetry.

How does the OTP configuration "0001" differ from default "0000"?

The "0001" OTP code configures the device for 420kHz switching frequency and 60W USB PD operation, optimizing EMI performance and thermal behavior for mid-power charging ports. In contrast, "0000" defaults to 280kHz and 100W capability, prioritizing conduction loss reduction over switching loss.

Can MPQ4263GQVE-0001-AEC1-P operate in buck-only or boost-only mode?

Yes-it automatically transitions between buck, boost, and buck-boost modes based on VIN/VOUT ratio. When VIN > VOUT + VDROP, it operates in buck mode; when VIN < VOUT − VDROP, in boost mode; otherwise, it enters buck-boost. Mode transitions are seamless and do not require external control.

What is the function of the VOUT pin beyond output voltage sensing?

The VOUT pin provides the internal 5V VCC LDO's power source when VOUT exceeds 6.4–7.2V. This biasing scheme improves efficiency by eliminating the need for a separate VCC supply, reducing external component count and simplifying power sequencing in automotive systems.

Does the device support USB PD 3.1 Extended Power Range (EPR)?

Yes-MPQ4263GQVE-0001-AEC1-P meets USB PD 3.1 EPR, AVS, and PPS specifications through its I²C-configurable VREF (0.1–2.147V), ±5% CC accuracy, and programmable OVP thresholds. It enables dynamic VBUS negotiation up to 28V/5A (140W) with validated transient response per USB-IF test plans.

How is thermal performance validated for automotive use?

Thermal validation follows JESD51-7 standards on a 4-layer PCB, measuring θJA = 9.1°C/W and θJC = 2.5°C/W. The device includes 160°C thermal shutdown with 20°C hysteresis and has been qualified per AEC-Q100 Grade 1 (−40°C to +150°C junction), including 1000-cycle temperature cycling and HTOL stress testing.

What layout considerations are critical for PGND and AGND separation?

PGND requires low-inductance copper pour with multiple thermal vias to inner ground planes, while AGND must be tied to the VCC capacitor's ground node only-not directly to PGND-to prevent noise coupling into the feedback and current-sense paths. A split-ground approach with single-point connection at the VCC decoupling capacitor is mandatory.

MPQ4263GQVE-0001-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-0001-AEC1-P FAQ

1.How can I place an order for MPQ4263GQVE-0001-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ4263GQVE-0001-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-0001-AEC1-P reliable?

The price and inventory of MPQ4263GQVE-0001-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-0001-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ4263GQVE-0001-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4263GQVE-0001-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4263GQVE-0001-AEC1-P?

MPQ4263GQVE-0001-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ4263GQVE-0001-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-0001-AEC1-P?

For technical support, including MPQ4263GQVE-0001-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4263GQVE-0001-AEC1-P requirements.

6.How does Aetrix verify that MPQ4263GQVE-0001-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ4263GQVE-0001-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-0001-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ4263GQVE-0001-AEC1-P?

All MPQ4263GQVE-0001-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4263GQVE-0001-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-0001-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ4263GQVE-0001-AEC1-P:

1.Submit a request within 90 days.

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

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