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. MPQ4488TGU-FD-AEC1-P

Name: MPQ4488TGU-FD-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ4488TGU-FD-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MPQ4488TGU-FD-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Special Purpose Regulators

Package:: 26-PowerVFQFN

Datasheet:: MPQ4488TGU-FD-AEC1-P.pdf

Description:: NRFND: FOR NEW DESIGNS, RECOMMEN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,593

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

Product details

Overview

MPQ4488TGU-FD-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, monolithic 36V input, 6A synchronous step-down converter with integrated dual USB charging ports (USB1/USB2), programmable switching frequency (250kHz–2.2MHz), ±10% spread spectrum (based on 450kHz), and 135°C load-shedding thermal management. It delivers 5.17V output with 90mV line-drop compensation and supports BC1.2 DCP, 1.2V/1.2V, divider, and USB Type-C 5V@3A DFP modes in automotive infotainment and telematics power systems.

For engineers reviewing the MPQ4488TGU-FD-AEC1-P datasheet, MPQ4488TGU-FD-AEC1-P pinout, MPQ4488TGU-FD-AEC1-P application, or MPQ4488TGU-FD-AEC1-P equivalent, key selection considerations include its QFN-26 (5mm×5mm) package, dual USB current-limit MOSFETs (13mΩ), integrated CC1/CC2/CC3/CC4 Type-C configuration channels, hiccup-mode OCP for buck and USB paths, and mandatory FREQ-pin floating for spread-spectrum operation.

Technical Context

The MPQ4488TGU-FD-AEC1-P implements a fixed-frequency, peak-current-mode controlled synchronous buck regulator with internal 18mΩ/15mΩ HS/LS MOSFETs and forced CCM operation across all loads. Its control loop integrates an error amplifier with internal compensation, a 4.5V VCC LDO biased by VIN and later bootstrapped from OUT, and UVLO thresholds of 5.0V (rising) and 4.3V (falling).

USB port functionality is managed via dedicated DP1/DM1/DP2/DM2 data lines and CC1/CC2/CC3/CC4 configuration channels, enabling automatic detection of BC1.2 DCP, USB Type-A divider/1.2V/1.2V, and USB Type-C 5V@3A DFP modes without external intervention. The device uses a 4kHz triangle wave to modulate oscillator frequency with ±10% spread around 450kHz when FREQ is floated or tied to VCC.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	6V to 36V - supports wide automotive battery range including cold-crank (6V) and load-dump (36V) transients.
Output Current	6A buck output - powers both USB1 and USB2 ports simultaneously at up to 3A each under full load.
Switching Frequency	250kHz to 2.2MHz - adjustable via resistor on FREQ pin; default 450kHz with ±10% spread spectrum enabled when FREQ is floated.
USB Output Voltage	5.17V (typical, OUT_SEL = float) - factory-trimmed for minimal tolerance over -40°C to +125°C junction temperature.
R_DS(ON) (Buck HS/LS)	18mΩ / 15mΩ - enables high-efficiency 6A operation with low conduction loss and thermal rise.
R_DS(ON) (USB1/USB2)	13mΩ / 13mΩ - ensures ≤100mV voltage drop at 3A, meeting USB BC1.2 and Type-C 5V@3A compliance.
Thermal Load Shedding	135°C entry temperature - reduces output current before reaching 165°C thermal shutdown, preserving system uptime.
ESD Rating (USB/DP/DM)	±8kV HBM - meets automotive ESD robustness requirements for exposed USB interface pins.

Pinout & Package

MPQ4488TGU-FD-AEC1-P is housed in a thermally enhanced QFN-26 (5mm × 5mm, 0.5mm pitch) package with exposed thermal pad (PGND-connected) for automotive-grade thermal performance. Pin 1 is marked with a dot; top marking includes MPS prefix, year/week code, "MP4488T", lot number, and "FD" suffix.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 13, 20, 21	PGND	Power ground return for buck switch node, USB switches, and thermal pad - requires low-impedance copper pour and multiple vias.
6	AGND	Analog reference ground - must be star-connected to PGND near IC to avoid noise coupling into feedback and sensing circuits.
2, 16, 24	USB1 / USB2 / CC2	USB1 power output (3A), USB2 power output (3A), and USB1 Type-C configuration channel - CC2 used for VCONN sourcing after connection detection.
3, 15, 25	OUT	Buck output node - supplies regulated 5.17V to both USB ports and external circuitry; connects to output capacitor bank and VCC bootstrap path.
4, 14	IN	Main 6–36V input - feeds internal HS-FET drain and VCC LDO; requires low-ESR input capacitor placed within 3mm of pins 4/14.
7	VCC	4.5V internal LDO output - powers analog/digital core; requires 1µF ceramic decoupling adjacent to pin 7.
8, 9, 26	SW	Buck switch node - connects to external inductor; demands wide copper trace (≥0.5mm) and tight layout to minimize ringing and EMI.
10	BST	Bootstrap capacitor connection - forms floating supply for HS-FET gate driver; requires 220nF X7R ceramic between BST and SW.
11	OUT_SEL	Output voltage select - logic level sets 5.10V (low), 5.17V (float), or 5.30V (high); float state is factory-default calibration point.
12	FREQ	Frequency programming input - float or tie to VCC for 450kHz ±10% spread spectrum; connect to GND for fixed 250kHz operation.
17, 18	CC4 / CC3	USB2 Type-C configuration channels - detect plug orientation, negotiate power role, and enable VCONN sourcing on CC3/CC4 after connection.
19, 20	DM2 / DP2	USB2 differential data lines - support BC1.2 handshake, Type-C enumeration, and legacy USB-A detection via voltage divider modes.
22, 23	DP1 / DM1	USB1 differential data lines - identical function to DP2/DM2; independent auto-detection allows concurrent USB1/USB2 port negotiation.
21	EN	Enable control with 8µA internal pull-up - float for automatic start; pull low (<0.8V) to disable; clamped at 7.6V for overvoltage protection.

Key Features

Feature	Design Value
Dual USB charging port integration	Eliminates need for two discrete USB switches and external BC1.2/Type-C ID ICs - reduces BOM count by ≥5 components and PCB area by >30mm².
Programmable spread-spectrum clocking	±10% modulation centered at 450kHz reduces peak EMI by >10dB in 150kHz–108MHz automotive CISPR 25 Class 5 band without external filters.
135°C load-shedding thermal management	Gradually scales back USB output current before thermal shutdown - maintains partial system functionality during sustained high-temperature operation (e.g., dashboard under sun load).
Integrated CC1–CC4 configuration channels	Supports full USB Type-C DFP negotiation (including VCONN sourcing) on both ports without external CC logic - enables true dual-Type-C automotive docking.
Hiccup-mode OCP on buck and USB paths	Limiting fault current to <100mA average during short-circuit prevents fuse blowing and enables self-recovery without manual reset.
Forced CCM operation	Ensures stable 450kHz switching regardless of load - simplifies EMI filter design and guarantees minimum bootstrap charge time for reliable HS-FET drive.

Applications

Automotive Infotainment Head Unit

Telematics Control Unit (TCU)

Use Scenario: Powering dual USB-C ports in a vehicle head unit for smartphone mirroring and firmware updates.

IC Role / Device Role / Timing Role: Primary 5.17V power source for USB-C DFP mode with VCONN support and BC1.2 fallback; provides synchronized 450kHz clock for EMI-controlled layout.

Use Value: Single-chip solution replaces buck converter + two USB switches + Type-C controller - reduces thermal hotspots and eliminates inter-chip timing skew in USB enumeration.

Use Scenario: Supplying dual USB-A/USB-C ports in a TCU for OTA update dongles and diagnostic tools.

IC Role / Device Role / Timing Role: Regulated 5.17V source with 135°C load shedding - sustains 3A per port during extended firmware upload while preventing thermal derating.

Use Value: Maintains USB communication integrity during high-ambient-temperature operation (e.g., under-hood TCU) without requiring external thermal sensors or fan control.

Advanced Driver Assistance Systems (ADAS) Display

Automotive Rear-Seat Entertainment

Use Scenario: Powering USB-C display link and service port in a digital instrument cluster with ASIL-B functional safety alignment.

IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 power manager with hiccup-mode OCP - isolates faults on one USB port without disrupting display power rail.

Use Value: Enables fail-operational behavior: if USB-C port shorts, buck continues delivering 6A to display backlight while USB2 remains active for diagnostics.

Use Scenario: Dual-port charging for tablets and headphones in rear-seat entertainment systems with cabin temperature up to 85°C.

IC Role / Device Role / Timing Role: 6A buck with 90mV line-drop compensation - maintains ±1% USB voltage regulation across 3m cable runs and connector resistance.

Use Value: Prevents charging interruption due to voltage sag at remote ports - ensures consistent 3A delivery even with long harnesses and crimped connectors.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-USB automotive power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ4488B	Successor with improved efficiency (up to 94%), lower R_DS(ON) (15mΩ/12mΩ), and extended spread-spectrum range (±12%).	Same pinout and feature set; supports identical USB modes and AEC-Q100 Grade 1 qualification.	Select MPQ4488B for new designs requiring higher efficiency, lower thermal footprint, and longer product lifecycle support.
MPQ4420AGU-AEC1-P	Single USB port, no Type-C CC logic, no spread spectrum, 4A buck output, 5.1V fixed output.	Lacks dual USB, Type-C negotiation, and frequency modulation - suitable only for basic USB-A charging in cost-sensitive modules.	Choose only for legacy replacement where dual USB and EMI reduction are not required; not drop-in compatible.

Compared with MPQ4488B, the MPQ4488TGU-FD-AEC1-P offers identical functionality but lower efficiency and fixed 450kHz spread-spectrum center frequency; compared with MPQ4420AGU-AEC1-P, it adds dual USB, Type-C support, and EMI mitigation at higher BOM cost and thermal load.

Availability

MPQ4488TGU-FD-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment head units, telematics control units, ADAS displays, and rear-seat entertainment systems requiring stable component supply with AEC-Q100 qualification and production traceability.

Supply support for MPQ4488TGU-FD-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 for automotive, industrial, and consumer applications, with global manufacturing and quality certifications including IATF 16949.

The MPQ4488 series belongs to MPS's automotive-grade DC-DC converter product line, designed specifically for single-chip USB charging solutions in vehicles with stringent EMI, thermal, and reliability requirements.

FAQ

What does the "FD" suffix in MPQ4488TGU-FD-AEC1-P indicate?

The "FD" suffix denotes the frequency spread-spectrum variant with fundamental switching frequency of 450kHz and ±10% modulation. This version requires the FREQ pin to be floated or tied to VCC to activate spread spectrum; connecting FREQ to ground disables modulation and sets fixed 250kHz operation. It is distinct from the base MPQ4488TGU-AEC1 (no spread spectrum) and MPQ4488TGU-FD2-AEC1 (250kHz fundamental).

Can MPQ4488TGU-FD-AEC1-P support USB Type-C power delivery (PD) negotiation?

No. MPQ4488TGU-FD-AEC1-P supports USB Type-C 5V@3A DFP mode only - it provides fixed 5.17V output with CC1–CC4 detection for plug orientation and VCONN sourcing, but lacks the bidirectional communication, variable voltage negotiation, and PD protocol stack required for USB PD. It complies with USB BC1.2 and USB Type-C 1.2 specifications only.

Why does the datasheet state "NOT RECOMMENDED FOR NEW DESIGNS"?

This designation reflects MPS's official product change notice: MPQ4488T has been superseded by MPQ4488B, which offers improved efficiency, lower R_DS(ON), enhanced thermal performance, and extended spread-spectrum capability. While MPQ4488TGU-FD-AEC1-P remains fully qualified and supported for existing designs, MPS recommends MPQ4488B for all new automotive projects to ensure long-term supply and performance optimization.

How is load shedding triggered and what happens during that state?

Load shedding activates when junction temperature reaches 135°C, causing the IC to progressively reduce USB1 and USB2 output currents while maintaining buck regulation. This occurs before thermal shutdown (165°C) and is implemented via internal thermal sense circuitry that modulates USB current-limit references. Buck output remains stable at 5.17V, allowing critical system functions to continue operating.

What is the purpose of the 90mV line-drop compensation feature?

The 90mV line-drop compensation adjusts the output voltage upward proportionally to load current to counteract voltage drop across PCB traces and connectors. At 2.4A load, it adds 90mV to the nominal 5.17V setting, ensuring the USB port delivers ≥5.17V at the far end of a typical 300mm, 0.3mm-thick PCB trace - critical for maintaining USB BC1.2 and Type-C voltage compliance under full load.

Is the MPQ4488TGU-FD-AEC1-P pin-compatible with MPQ4488B?

Yes. MPQ4488B shares identical QFN-26 (5mm×5mm) package, pinout, and footprint with MPQ4488TGU-FD-AEC1-P. All signal names, power connections, and thermal pad layout match exactly. Firmware and schematic revisions require no changes beyond updating the part number and verifying updated electrical characteristics in final validation.

Does the device support simultaneous BC1.2 and USB Type-C enumeration on different ports?

Yes. The MPQ4488TGU-FD-AEC1-P independently manages USB1 and USB2 ports: USB1 can operate in BC1.2 DCP mode while USB2 negotiates USB Type-C 5V@3A DFP mode concurrently. Each port has dedicated DP/DM and CC pins, separate current-limit circuitry, and autonomous detection logic - enabling mixed-mode operation without cross-port interference.

MPQ4488TGU-FD-AEC1-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 26-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Applications:: Converter, USB

Voltage - Input:: 36V

Number of Outputs:: 3

Voltage - Output:: 5.1V, 5.17V, 5.3V

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 26-QFN (5x5)

MPQ4488TGU-FD-AEC1-P FAQ

1.How can I place an order for MPQ4488TGU-FD-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ4488TGU-FD-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 MPQ4488TGU-FD-AEC1-P reliable?

The price and inventory of MPQ4488TGU-FD-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 MPQ4488TGU-FD-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ4488TGU-FD-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4488TGU-FD-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4488TGU-FD-AEC1-P?

MPQ4488TGU-FD-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ4488TGU-FD-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 MPQ4488TGU-FD-AEC1-P?

For technical support, including MPQ4488TGU-FD-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4488TGU-FD-AEC1-P requirements.

6.How does Aetrix verify that MPQ4488TGU-FD-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ4488TGU-FD-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 MPQ4488TGU-FD-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ4488TGU-FD-AEC1-P?

All MPQ4488TGU-FD-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4488TGU-FD-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 MPQ4488TGU-FD-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ4488TGU-FD-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…