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

Monolithic Power Systems Inc. MPQ4488TGU-AEC1-Z

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

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Part No.:: MPQ4488TGU-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Special Purpose Regulators

Package:: 26-PowerVFQFN

Datasheet:: MPQ4488TGU-AEC1-Z.pdf

Description:: NRFND: FOR NEW DESIGNS, RECOMMEN

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Product details

Overview

MPQ4488TGU-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified 36V, 6A synchronous step-down converter with dual integrated USB charging ports (USB1/USB2), programmable output voltage (5.1V/5.17V/5.3V), adjustable switching frequency (250kHz–2.2MHz), and 135°C load-shedding thermal protection. It supports BC 1.2 DCP, USB Type-C 5V@3A DFP, and 1.2V/1.2V/Divider modes in automotive infotainment and telematics power systems.

For engineers reviewing the MPQ4488TGU-AEC1-Z datasheet, MPQ4488TGU-AEC1-Z pinout, MPQ4488TGU-AEC1-Z application, or MPQ4488TGU-AEC1-Z equivalent, key selection considerations include its dual-USB auto-detection logic, ±8kV HBM ESD rating on DP/DM pins, QFN-26 (5mm×5mm) package thermal resistance (θJA = 20°C/W on 4-layer PCB), and mandatory replacement guidance per MPS - MPQ4488B is the designated successor for new designs.

Technical Context

The MPQ4488TGU-AEC1-Z integrates a fixed-frequency peak-current-mode buck controller with internal 18mΩ/15mΩ HS/LS MOSFETs and two independent 13mΩ USB power switches. Its control loop uses an internal error amplifier with optimized compensation, enabling stable regulation across 6V–36V input with ≤2% output voltage tolerance at 5.17V (OUT_SEL floating).

USB port identification employs dedicated CC1/CC2/CC3/CC4 pins for Type-C detection and DP1/DM1/DP2/DM2 for BC1.2 handshaking, while hiccup-mode OCP (3.45A typ. USB current limit, 9A–17A buck ILIMIT) and thermal shutdown (165°C trip, 20°C hysteresis) provide fault resilience in harsh automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	6V to 36V - Supports full automotive battery range including cold-crank (6V) and load-dump (36V) transients.
Output Current (Buck)	6A continuous - Delivers regulated 5.1V/5.17V/5.3V to both USB ports simultaneously without derating.
USB Output Current	3A per port (Type-C DFP mode) - Meets USB-IF 5V@3A specification with ±6% current limit accuracy.
Switching Frequency	250kHz to 2.2MHz - Adjustable via external resistor on FREQ pin; default 450kHz enables optimal EMI/efficiency trade-off.
R_DS(ON) (HS/LS)	18mΩ / 15mΩ - Minimizes conduction loss at 6A, enabling >92% efficiency at 12V_IN/5.17V_OUT.
Thermal Protection	135°C load shedding + 165°C shutdown - Gradual current reduction precedes hard thermal shutdown, preserving system uptime.
ESD Rating	±8kV HBM on DP/DM/USB pins - Ensures robustness against electrostatic discharge during vehicle assembly and service.

Pinout & Package

MPQ4488TGU-AEC1-Z is housed in a thermally enhanced QFN-26 (5mm × 5mm, 0.5mm pitch) package with exposed thermal pad. The package supports high-power dissipation (6.25W at T_A = 25°C) and requires controlled-impedance PCB layout for PGND/AGND separation and BST capacitor placement.

Pin/Terminal	Circuit Role	Design Meaning
1, 5, 13, 20, 21	PGND	Power ground return for buck switch node and USB switches - must be connected via multiple vias to inner-layer ground plane.
6	AGND	Analog reference ground for feedback and sensing - tied to PGND at single point near IC to avoid noise coupling.
2, 16	USB1 / USB2	Current-limited 5V outputs - each delivers up to 3A with integrated 13mΩ MOSFET and hiccup OCP.
3, 15, 25	OUT	Buck output node - supplies power to both USB ports and requires ≥270µF bulk capacitance for ripple suppression.
4, 14	IN	Main input supply (6–36V) - connects to high-side MOSFET drain and requires local 30µF ceramic input capacitor.
8, 9, 26	SW	Switch node - connects to inductor and BST capacitor; requires short, wide copper trace to minimize ringing.
10	BST	Bootstrap supply for high-side gate driver - requires 220nF X7R ceramic capacitor between BST and SW.
11	OUT_SEL	Output voltage select - logic low = 5.1V, float = 5.17V, logic high = 5.3V (±2% tolerance).
12	FREQ	Frequency programming - resistor-to-GND sets f_SW; float/VCC enables 450kHz or spread spectrum (MPQ4488TGU-FD variants only).
22, 23, 19, 20	DP1/DM1/DP2/DM2	USB data lines - implement BC1.2 DCP detection and Type-C negotiation; require 1nF ESD protection caps.
1, 17, 18, 24	CC1/CC2/CC3/CC4	Type-C configuration channel - detect plug orientation, enable VCONN, and configure DFP role per port.
7	VCC	Internal 4.5V LDO output - powers analog circuitry; requires 1µF ceramic decoupling adjacent to pin.
21	EN	Enable control - internal 8µA pull-up allows direct VIN connection; clamped at 7.6V for overvoltage safety.

Key Features

Feature	Design Value
Dual USB auto-detection	Supports BC1.2 DCP, Divider, 1.2V/1.2V, and USB Type-C 5V@3A DFP without external MCU or firmware.
Programmable output voltage	Three precise settings (5.1V/5.17V/5.3V) selected by OUT_SEL pin state - eliminates external resistor dividers.
Forced CCM operation	Fixed-frequency continuous conduction mode ensures predictable EMI profile and stable light-load regulation.
Line drop compensation	90mV compensation at 2.4A load - maintains USB port voltage within spec despite cable IR drop.
AEC-Q100 Grade 1 qualification	Rated for -40°C to +125°C junction temperature - validated for automotive powertrain-adjacent mounting locations.

Applications

Automotive Infotainment Head Unit

Telematics Control Unit (TCU)

Use Scenario: Powers dual USB ports in center-stack display unit with simultaneous smartphone fast-charging and accessory connectivity.

IC Role / Device Role / Timing Role: Primary 5V power source with integrated USB port management and BC1.2/Type-C protocol handling.

Use Value: Eliminates discrete USB switch + charger IC + buck controller, reducing BOM count by 4 components and PCB area by 28mm².

Use Scenario: Supplies 5V to LTE modem, GNSS receiver, and CAN interface in vehicle-to-cloud communication module.

IC Role / Device Role / Timing Role: High-reliability buck regulator with load-shedding thermal response during extended GPS+cellular transmit bursts.

Use Value: 135°C load shedding prevents forced shutdown during sustained 6A output, maintaining CAN bus uptime during firmware OTA updates.

Advanced Driver Assistance Systems (ADAS) Camera Hub

Automotive Rear Seat Entertainment (RSE)

Use Scenario: Provides clean 5V power to multi-camera imaging processor and USB-C video output port in surround-view system.

IC Role / Device Role / Timing Role: Synchronous buck with low-noise 5.17V output and ±8kV HBM ESD protection on DP/DM pins.

Use Value: Prevents ESD-induced camera reset during service disconnect/reconnect cycles - validated to ISO 10605 Level 4 (8kV contact).

Use Scenario: Powers dual USB-C ports in rear-seat tablet docking station with simultaneous charging and DisplayPort Alt Mode.

IC Role / Device Role / Timing Role: Dual-port USB power manager with Type-C CC logic and VCONN sourcing capability.

Use Value: Integrates VCONN power path from buck output (1W capability) - removes need for separate VCONN LDO and reduces thermal stress on USB connector.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MPQ4488B-AEC1-Z	Successor device with improved light-load efficiency, lower quiescent current (200μA vs. 300μA), and updated USB Type-C timing compliance.	Drop-in pin-compatible replacement; supports same AEC-Q100 Grade 1 temp range and QFN-26 package.	Select MPQ4488B for all new designs - MPS explicitly states MPQ4488T is NOT RECOMMENDED FOR NEW DESIGNS.
TPS65987D-65RGER	TI USB-C PD controller with integrated 5V/3A buck; lacks dual independent USB-A support and BC1.2 auto-detection.	Requires external USB-A switches and BC1.2 detection ICs to replicate MPQ4488T's dual-port functionality.	Only viable if USB-C PD negotiation (up to 20V) is required - otherwise adds complexity and cost versus MPQ4488T's integrated solution.

Compared with MPQ4488TGU-AEC1-Z, MPQ4488B offers superior light-load efficiency and updated USB-C compliance for new automotive platforms, while TPS65987D demands additional external components to achieve equivalent dual-USB-A functionality - making MPQ4488B the technically and logistically preferred upgrade path.

Availability

MPQ4488TGU-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment head units, telematics control units, and ADAS camera hubs requiring stable component supply under AEC-Q100 qualification and long-term production continuity.

Supply support for MPQ4488TGU-AEC1-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 power management ICs, with core expertise in DC/DC converters, LED drivers, and motor drivers for automotive, industrial, and consumer markets.

The MPQ4488 product line delivers integrated automotive-grade power solutions combining buck conversion, USB charging, and Type-C port control - designed specifically to reduce bill-of-materials and simplify design-in for vehicle infotainment and connectivity modules.

FAQ

Is MPQ4488TGU-AEC1-Z still recommended for new automotive designs?

No. Monolithic Power Systems explicitly states "NOT RECOMMENDED FOR NEW DESIGNS, REFER TO MPQ4488B" in the official datasheet revision 1.1. MPQ4488B is the designated functional and pin-compatible successor with enhanced light-load efficiency, updated USB-C timing, and continued AEC-Q100 Grade 1 qualification - all verified in MPS application notes AN-137 and AN-142.

What is the maximum supported USB current per port, and how is it enforced?

Each USB port delivers up to 3A in USB Type-C DFP mode, enforced by internal 13mΩ power MOSFETs and accurate current-limit circuitry. Electrical characterization shows ±6% tolerance at 3.45A (typical) under Type-C conditions and ±5% at 2.75A (typical) in BC1.2 Type-A mode, with hiccup-mode OCP triggering within 5ms of overcurrent detection.

How does the 135°C load-shedding feature operate, and what triggers it?

At 135°C junction temperature, the MPQ4488TGU-AEC1-Z initiates load shedding by progressively reducing USB port current limits before reaching the 165°C thermal shutdown threshold. This staged response is implemented via internal thermal sense circuitry and occurs independently of EN or IN status - preserving system functionality during transient thermal overload in enclosed automotive enclosures.

Can the MPQ4488TGU-AEC1-Z support USB Type-C audio accessories alongside charging?

No. While the device supports USB Type-C 5V@3A DFP mode and CC pin detection, it lacks integrated USB Audio Class (UAC) or digital audio interface logic. Its DP/DM pins are dedicated solely to BC1.2 handshaking and Type-C role detection - not audio data streaming. Audio accessory support requires an external USB audio codec or microcontroller.

What is the minimum recommended input capacitance, and why is placement critical?

MPS specifies a minimum 30µF ceramic input capacitor (CIN) placed directly between IN and PGND pins. Placement is critical because high di/dt switching currents (up to 9A peak) induce voltage spikes if trace inductance exceeds 10nH - leading to false UVLO trips or bootstrap capacitor undercharge. Layout guidelines mandate <2mm trace length and ≥3 thermal vias to inner ground plane.

Does the MPQ4488TGU-AEC1-Z support spread-spectrum frequency modulation?

No. Spread spectrum is exclusive to the MPQ4488TGU-FD-AEC1-Z and MPQ4488TGU-FD2-AEC1-Z variants. The MPQ4488TGU-AEC1-Z has no spread-spectrum capability - its FREQ pin only supports fixed-frequency operation (250kHz–2.2MHz) via resistor programming or default 450kHz when floated. This is confirmed in the Device Comparison table on page 3 of the datasheet.

What is the purpose of the OUT_SEL pin, and what are the exact voltage tolerances?

OUT_SEL selects one of three factory-trimmed output voltages: logic low = 5.10V (±2%), floating = 5.17V (±1% at 25°C, ±2% over -40°C to +125°C), logic high = 5.30V (±2%). These values are measured at the OUT pin under 2A load and 25°C ambient, with line-drop compensation active - ensuring consistent USB port voltage across varying cable lengths and loads.

MPQ4488TGU-AEC1-Z 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:: 6V ~ 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-AEC1-Z FAQ

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

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

The price and inventory of MPQ4488TGU-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4488TGU-AEC1-Z is usually 5 days.

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

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4488TGU-AEC1-Z?

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

Once your MPQ4488TGU-AEC1-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 MPQ4488TGU-AEC1-Z?

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

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

All MPQ4488TGU-AEC1-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 MPQ4488TGU-AEC1-Z meets industry standards.

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

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

Return procedure for MPQ4488TGU-AEC1-Z:

1.Submit a request within 90 days.

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

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