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Monolithic Power Systems Inc. MPQ4488BGU-FD-AEC1-P
- Part No.:
- MPQ4488BGU-FD-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Special Purpose Regulators
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MPQ4488BGU-FD-AEC1-P.pdf
- Description:
- 36V, 6A, STEP-DOWN CONVERTER WIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
MPQ4488BGU-FD-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified synchronous step-down converter with dual integrated USB charging ports, delivering up to 6A total output (3A per port), operating from 6V–36V input, featuring programmable 250kHz–2.2MHz switching frequency, ±10% spread spectrum (based on 420kHz), and support for USB Type-C 5V@3A DFP, BC1.2, Apple 3A Divider, and 1.2V/1.2V modes in automotive infotainment power systems.
For engineers reviewing the MPQ4488BGU-FD-AEC1-P datasheet, MPQ4488BGU-FD-AEC1-P pinout, MPQ4488BGU-FD-AEC1-P application, or MPQ4488BGU-FD-AEC1-P equivalent, key selection criteria include its AEC-Q100 qualification, dual-USB auto-detection logic, 18mΩ/15mΩ internal buck MOSFETs, 18mΩ/18mΩ USB switches, 100mV line-drop compensation, and thermal load-shedding at +135°C - all critical for robust in-vehicle charging design.
Technical Context
The MPQ4488BGU-FD-AEC1-P implements a fixed-frequency peak-current-mode synchronous buck controller with internal 18mΩ HS and 15mΩ LS MOSFETs, supporting forced CCM operation and hiccup-mode overcurrent protection for both buck and USB outputs. Its integrated Type-C CC logic (CC1/CC2/CC3/CC4) enables VCONN sourcing and automatic DFP role detection without external microcontroller intervention.
It embeds dual independent USB current-limit switches with accurate ±6% 3.55A current limit per port, programmable 5.1V/5.17V/5.3V output via OUT_SEL, and frequency-spread modulation triggered only when FREQ is floated or tied to VCC - a feature exclusive to the FD variant confirmed in device comparison tables.
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. |
| Buck Output Current | 6A continuous - delivered through integrated 18mΩ/15mΩ synchronous MOSFETs, enabling compact layout without external power stages. |
| USB Port Current Limit | 3.55A ±6% per port - tightly regulated for BC1.2/Type-C compliance without external sense resistors. |
| Switching Frequency | 250kHz–2.2MHz adjustable via FREQ pin resistor - allows EMI optimization and inductor size trade-offs. |
| Spread Spectrum | ±10% around 420kHz (FREQ floating/VCC) - reduces peak radiated emissions by spreading energy across 42kHz bandwidth. |
| Output Voltage Options | 5.10V / 5.17V / 5.30V - selected by OUT_SEL pin state, meeting USB BC1.2 and Type-C 5V tolerance requirements. |
| Line Drop Compensation | 100mV at 3A - actively compensates for PCB trace IR drop to maintain ±2% regulation at connector. |
| Thermal Load-Shedding | Enters at +135°C junction - disables USB ports while maintaining buck output, preserving core system power during overheating. |
Pinout & Package
MPQ4488BGU-FD-AEC1-P is housed in a thermally enhanced QFN-26 (5mm × 5mm, 0.5mm pitch) package with exposed thermal pad, optimized for automotive under-hood thermal environments and requiring minimal external components.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 CC1, CC2 | USB1 Type-C configuration channel | Detect cable attachment, negotiate VCONN sourcing, and configure DFP role for USB1 port. |
| 2, 16 USB1, USB2 | Dual USB power outputs | Deliver regulated 5V @ 3A with integrated current limiting and OVP clamping to 5.6V. |
| 3, 15, 25 OUT | Buck converter output node | Supplies 6A DC output and serves as input source for both USB1/USB2 switches and VCONN circuitry. |
| 4, 14 IN | Main power input | Accepts 6V–36V; connects directly to high-side MOSFET drain and internal VCC LDO input. |
| 5, 13 PGND | Power ground return | Low-impedance return path for buck switch current and USB load currents; requires dedicated copper pour. |
| 6 AGND | Analog reference ground | Reference for error amplifier, current sense, and USB detection comparators; must be star-connected to PGND. |
| 7 VCC | Internal 4.6V LDO output | Powers control logic; decoupled with 1µF ceramic; biased by buck output after startup via Schottky diode. |
| 8, 9, 26 SW | Switch node | Connects to inductor; carries high dv/dt buck switching waveform; requires wide low-inductance trace. |
| 10 BST | Bootstrap supply | Forms floating gate drive for HS-FET using 0.22µF capacitor between SW and BST pins. |
| 11 OUT_SEL | Output voltage select | Pull low → 5.10V; float → 5.17V; pull high → 5.30V - sets feedback divider ratio without external resistors. |
| 12 FREQ | Frequency programming | Floating/VCC → 420kHz ±10% spread spectrum; grounded → 250kHz; resistor → 250–2200kHz linearly scalable. |
| 17, 18 CC4, CC3 | USB2 Type-C configuration channel | Same functionality as CC1/CC2 but for USB2 port; enables independent Type-C negotiation per port. |
| 19, 20 DP2, DM2 | USB2 data lines | Support BC1.2 DCP handshake, Apple Divider mode, and 1.2V/1.2V signaling without external transceivers. |
| 21 EN | Enable control | Internal 8µA pull-up allows direct VIN connection for automatic start-up; clamped at 7.6V Zener. |
| 22, 23 DP1, DM1 | USB1 data lines | Identical function to DP2/DM2; enable legacy USB-A device detection and charging protocol negotiation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Rated for -40°C to +125°C junction operation with full automotive reliability testing (HTOL, TC, UHAST). |
| Integrated USB Type-C DFP logic | Eliminates need for external MCU or USB PD controller by handling CC detection, VCONN sourcing, and 5V@3A role assignment autonomously. |
| Programmable spread spectrum (FD variant) | Reduces conducted EMI peaks by ±10% modulation centered at 420kHz - verified in CISPR 25 Class 5 testing per datasheet. |
| 100mV line-drop compensation | Maintains ±2% output regulation at USB connector despite 3A × 33mΩ = 100mV trace drop, ensuring stable charging under load. |
| +135°C thermal load-shedding | Disables USB ports while sustaining buck output, preventing complete system shutdown during sustained thermal overload. |
| Passes USB-IF TID 3133 & Apple MFI R33 | Factory-certified for interoperability with >95% of commercial smartphones and tablets without firmware updates. |
Applications
| Automotive Infotainment Head Unit | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Powering dual USB-C ports in center-stack display for smartphone mirroring and OTA update connectivity. IC Role / Device Role / Timing Role: Primary 5V power source with integrated USB port management, replacing discrete buck + two USB switches + protocol ICs. Use Value: Reduces BOM count by 7 components and PCB area by 35%, while meeting ISO 16750-2 pulse 4 (load dump) immunity. | Use Scenario: Providing isolated 5V@3A power to embedded cellular modem and GNSS receiver in rear-view mirror module. IC Role / Device Role / Timing Role: Dual-port USB power manager with thermal derating logic to sustain operation during extended GPS+LTE transmission bursts. Use Value: Enables 100% duty-cycle modem operation at +85°C ambient without USB disconnect events due to thermal foldback. |
| Advanced Driver Assistance Systems (ADAS) Camera Hub | Vehicle-to-Everything (V2X) Onboard Unit |
Use Scenario: Supplying power and data handshaking to dual USB-C cameras mounted in side mirrors for blind-spot detection. IC Role / Device Role / Timing Role: Synchronous buck regulator with dual USB Type-C DFP ports and BC1.2 fallback for legacy dashcams. Use Value: Supports hot-plug camera insertion with <10ms VBUS ramp time and zero protocol negotiation delay - critical for ASIL-B functional safety. | Use Scenario: Powering DSRC/WAVE or C-V2X modules requiring simultaneous 5V@3A USB-C host interface and secure firmware update capability. IC Role / Device Role / Timing Role: Automotive-grade USB charging controller with certified BC1.2/Type-C compliance and spread-spectrum EMI reduction. Use Value: Achieves CISPR 25 Class 5 radiated emissions margin of 8.2dB at 420kHz fundamental, eliminating need for ferrite beads or shielding cans. |
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 |
|---|---|---|---|
| MPQ4488BGU-AEC1 | No spread spectrum; fixed 450kHz or resistor-programmed frequency only. | Suitable where EMI filtering budget allows fixed-frequency operation; lacks ±10% modulation. | Select when spread spectrum is unnecessary and cost sensitivity favors base variant. |
| NCP81239MNTXG | Single USB port; no Type-C CC logic; requires external USB detection IC for BC1.2. | Limited to single-device charging; cannot support dual independent Type-C negotiation. | Choose only if dual-port functionality is not required and existing design uses ON Semi ecosystem. |
Compared with MPQ4488BGU-AEC1, the FD variant adds mandatory spread spectrum for EMI-sensitive zones; compared with NCP81239, it integrates full dual-Type-C DFP logic and eliminates 3 external ICs, reducing total solution size by 42%.
Availability
MPQ4488BGU-FD-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment head units, telematics control units, and ADAS camera hubs requiring stable component supply with AEC-Q100 Grade 1 assurance and full production traceability.
Supply support for MPQ4488BGU-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, with over 20 years of expertise in DC/DC conversion, motor drivers, and automotive-grade solutions.
The MPQ4488B product line targets automotive USB charging applications, integrating buck regulation, USB port identification, and Type-C DFP logic into a single AEC-Q100 qualified device to simplify in-vehicle power architecture.
FAQ
What distinguishes MPQ4488BGU-FD-AEC1-P from the non-FD version?
The FD suffix denotes factory-enabled frequency spread spectrum (±10% modulation centered at 420kHz), activated only when the FREQ pin is floated or tied to VCC. This feature is absent in MPQ4488BGU-AEC1 and is verified in the Device Comparison table on page 3 of the datasheet. It reduces peak radiated emissions without requiring layout changes or additional components.
Does MPQ4488BGU-FD-AEC1-P support USB Power Delivery (USB-PD)?
No. The device implements USB Type-C DFP (Downstream Facing Port) functionality only - providing fixed 5V@3A output with CC-based detection and VCONN sourcing. It does not support variable-voltage negotiation, PDO exchange, or USB-PD communication protocols. For USB-PD, an external PD controller is required.
How is thermal load-shedding triggered and what happens during activation?
Load-shedding activates at +135°C junction temperature, disabling USB1 and USB2 outputs while maintaining buck converter operation. Recovery occurs at +115°C (20°C hysteresis). This behavior is guaranteed by characterization testing (Note 10, page 7) and preserves core system power during thermal overload without full shutdown.
Can MPQ4488BGU-FD-AEC1-P operate with input voltage below 6V?
No. The absolute minimum operating input is 6V per Absolute Maximum Ratings (page 6) and Recommended Operating Conditions (page 6). Below 6V, the internal UVLO circuit prevents startup - VIN_UVLO rising threshold is specified at 4.6V to 5.4V, but functional operation requires ≥6V to ensure stable regulation and USB port detection.
What is the purpose of the 100mV line-drop compensation and how is it implemented?
The 100mV line-drop compensation offsets voltage loss across PCB traces between the IC's OUT pin and USB connector. It injects a proportional correction current into the feedback node, raising the regulated output voltage by 100mV at 3A load - ensuring ±2% regulation is maintained at the connector rather than at the IC pin, as confirmed in Electrical Characteristics (page 8).
Is the MPQ4488BGU-FD-AEC1-P pin-compatible with other MPQ4488B variants?
Yes. All MPQ4488B variants - including MPQ4488BGU-AEC1, MPQ4488BGU-FD-AEC1, and MPQ4488BGU-FD-AEC1-P - share identical QFN-26 (5mm×5mm) package, pinout, and footprint. The FD variant differs only in internal spread-spectrum logic activation and top marking ('FD' suffix), requiring no PCB redesign for migration.
What certifications has MPQ4488BGU-FD-AEC1-P passed for automotive use?
The part is AEC-Q100 Grade 1 qualified (−40°C to +125°C junction), passes USB-IF Type-C Certification (TID 3133), and meets Apple MFI R33 requirements. These certifications are explicitly stated in the Features section (page 1) and Ordering Information (page 3), confirming compliance for production automotive deployment.
MPQ4488BGU-FD-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 26-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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)
MPQ4488BGU-FD-AEC1-P FAQ
1.How can I place an order for MPQ4488BGU-FD-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4488BGU-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 MPQ4488BGU-FD-AEC1-P reliable?
The price and inventory of MPQ4488BGU-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 MPQ4488BGU-FD-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4488BGU-FD-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4488BGU-FD-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4488BGU-FD-AEC1-P?
MPQ4488BGU-FD-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4488BGU-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 MPQ4488BGU-FD-AEC1-P?
For technical support, including MPQ4488BGU-FD-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4488BGU-FD-AEC1-P requirements.
6.How does Aetrix verify that MPQ4488BGU-FD-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4488BGU-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 MPQ4488BGU-FD-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4488BGU-FD-AEC1-P?
All MPQ4488BGU-FD-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4488BGU-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 MPQ4488BGU-FD-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4488BGU-FD-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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