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Monolithic Power Systems Inc. MPQ4488TGU-FD-AEC1-Z
- Part No.:
- MPQ4488TGU-FD-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Special Purpose Regulators
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MPQ4488TGU-FD-AEC1-Z.pdf
- Description:
- NRFND: FOR NEW DESIGNS, RECOMMEN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MPQ4488TGU-FD-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 switching frequency (250kHz–2.2MHz), ±10% spread spectrum (based on 450kHz), and 135°C load-shedding thermal management. It delivers 5.17V output at up to 3A per port for automotive USB DCP and Type-C 5V@3A DFP applications.
For engineers reviewing the MPQ4488TGU-FD-AEC1-Z datasheet, MPQ4488TGU-FD-AEC1-Z pinout, MPQ4488TGU-FD-AEC1-Z application, or MPQ4488TGU-FD-AEC1-Z equivalent, this device supports BC1.2 DCP, divider mode, 1.2V/1.2V mode, and USB Type-C 5V@3A detection without external intervention - critical for infotainment, telematics, and ADAS power delivery subsystems.
Technical Context
The MPQ4488TGU-FD-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 FREQ pin enables resistor-programmed switching frequency or float/VCC-activated 450kHz ±10% spread spectrum - reducing EMI in sensitive automotive environments.
It implements forced CCM operation across all loads, supports 90mV line-drop compensation, and features dedicated CC1/CC2/CC3/CC4 pins for USB Type-C configuration channel detection and VCONN sourcing. Thermal protection includes 135°C load-shedding entry and 165°C hiccup-mode shutdown with 20°C hysteresis.
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 | 6A buck output (shared by two USB ports), 3A per USB port - enables simultaneous fast-charging of two devices. |
| Switching Frequency | 250kHz to 2.2MHz, ±10% spread spectrum at 450kHz - reduces EMI peaks for CISPR 25 Class 5 compliance. |
| Output Voltage Options | 5.10V (OUT_SEL = low), 5.17V (OUT_SEL = float), 5.30V (OUT_SEL = high) - selectable via single pin for system-level voltage margining. |
| RDS(ON) (Buck HS/LS) | 18mΩ / 15mΩ - minimizes conduction loss and thermal rise at 6A continuous output. |
| RDS(ON) (USB Switches) | 13mΩ per port - ensures <100mV drop at 3A, meeting USB BC1.2 and Type-C 5V@3A voltage regulation specs. |
| ESD Rating (USB/DP/DM) | ±8kV HBM - meets AEC-Q100 stress requirements for in-vehicle connector interfaces. |
Pinout & Package
MPQ4488TGU-FD-AEC1-Z is housed in a thermally enhanced QFN-26 (5mm × 5mm) package with exposed thermal pad, optimized for automotive PCB layouts requiring high power density and thermal reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 CC1 / CC2 | USB Type-C Configuration Channel | Detects cable orientation, negotiates VCONN sourcing, and enables Type-C DFP functionality without external IC. |
| 2, 16 USB1 / USB2 | USB Power Output | Delivers regulated 5V up to 3A each; integrates current limiting, OVP, and auto-detection logic. |
| 3, 15, 25 OUT | Buck Regulator Output | Primary 6A power rail feeding both USB ports; connects directly to output capacitors and USB VBUS paths. |
| 4, 14 IN | Main Input Supply | Accepts 6–36V automotive input; internal 40V absolute max rating handles load-dump surges. |
| 5, 13 PGND | Power Ground | High-current return path for buck switch node and USB outputs; requires dedicated copper pour and multiple vias. |
| 6 AGND | Analog Ground | Reference for error amplifier, OVP, and current sense; must be star-connected to PGND near IC. |
| 7 VCC | Internal LDO Output | 4.5V regulated supply for control circuitry; requires 1µF ceramic decoupling close to pin. |
| 8, 9, 26 SW | Switch Node | Drives external inductor; high di/dt node requiring short, wide trace routing and minimized loop area. |
| 10 BST | Bootstrap Capacitor Connection | Supplies floating gate drive for HS-FET; requires 220nF X7R capacitor between BST and SW. |
| 11 OUT_SEL | Output Voltage Selection | Three-state pin (low/floating/high) sets VOUT to 5.10V/5.17V/5.30V - eliminates external resistor dividers. |
| 12 FREQ | Frequency Programming | Float or connect to VCC for 450kHz ±10% spread spectrum; resistor-to-GND selects discrete frequencies (250kHz–2.2MHz). |
| 21 EN | Enable Control | 8µA internal pull-up enables auto-start; 1.235V threshold with 200mV hysteresis ensures noise-immune sequencing. |
| 19, 20, 22, 23 DM2/DP2/DP1/DM1 | USB Data Lines | Support BC1.2 handshaking (DCP, divider, 1.2V/1.2V modes); ±8kV HBM protects against hot-plug ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB Charging Port Detection | Automatically identifies BC1.2 DCP, divider, 1.2V/1.2V, and USB Type-C 5V@3A DFP - removes need for external ID ICs or firmware polling. |
| Spread Spectrum EMI Reduction | ±10% modulation around 450kHz fundamental (MPQ4488TGU-FD-AEC1-Z) lowers peak radiated emissions by >10dB, easing CISPR 25 certification. |
| Forced Continuous Conduction Mode (CCM) | Maintains fixed switching frequency across light-to-full load, ensuring predictable ripple spectrum and stable bootstrap charging - critical for automotive EMC robustness. |
| 135°C Load-Shedding Thermal Management | Reduces USB output current before reaching 165°C shutdown, preserving system uptime during sustained high-temp operation (e.g., parked vehicle in desert sun). |
| 90mV Line-Drop Compensation | Compensates for IR drop across PCB traces and connectors, maintaining ±1% USB VBUS regulation at 3A load over temperature. |
Applications
| Automotive Infotainment Head Unit | Telematics Control Unit (TCU) |
|---|---|
|
Use Scenario: Dual-port USB charging in center-stack display with HDMI, audio, and cellular connectivity. IC Role / Device Role / Timing Role: Primary 5V power source for USB peripherals; provides BC1.2 and Type-C detection while managing thermal headroom during simultaneous video/audio processing. Use Value: Eliminates separate USB charger ICs and level-shifters, reducing BOM count by 3 components and PCB area by 25mm². |
Use Scenario: In-vehicle hotspot supporting LTE modem, GPS, and firmware update via USB-C. IC Role / Device Role / Timing Role: Delivers stable 5V@3A to USB-C port while synchronizing with modem power sequencing via EN pin control. Use Value: Enables seamless OTA updates using standard USB-C cables without requiring proprietary chargers or host-side driver changes. |
| Advanced Driver Assistance Systems (ADAS) Camera Hub | Automotive Rear Seat Entertainment (RSE) |
|
Use Scenario: Powering dual USB-C ports for camera module diagnostics and firmware loading in surround-view ECUs. IC Role / Device Role / Timing Role: Supplies regulated 5V with ±1% accuracy and 135°C load shedding to prevent thermal derating during extended calibration cycles. Use Value: Maintains diagnostic port availability even at 125°C ambient, avoiding service interruptions during high-temperature validation testing. |
Use Scenario: Dual USB-A ports for tablet charging in rear-seat armrests with ambient temperature up to 85°C. IC Role / Device Role / Timing Role: Provides isolated 3A/3A outputs with independent hiccup-mode OCP, preventing single-port fault from disabling both seats. Use Value: Achieves >92% efficiency at 3A/port under 40°C ambient, reducing heat sink requirements and enabling fanless RSE enclosure design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-USB automotive power delivery applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4488B | Successor part with improved thermal performance, lower RDS(ON), and updated spread spectrum algorithm; same pinout and footprint. | Recommended for new designs; supports higher ambient temperatures (150°C junction) and tighter output voltage tolerance (±0.7%). | Select MPQ4488B when designing new platforms requiring extended lifecycle support and enhanced efficiency at light load. |
| MPQ4485GQ-AEC1-Z | Single-port 36V/3A USB charger IC with BC1.2 + Type-C support; lacks spread spectrum and load-shedding temperature threshold. | Suitable for cost-sensitive single-port applications where EMI margin is less constrained and thermal derating is managed externally. | Choose MPQ4485GQ-AEC1-Z only for legacy redesigns where dual-port capability is unnecessary and board space permits discrete buck + USB switch partitioning. |
Compared with MPQ4488TGU-FD-AEC1-Z, MPQ4488B offers higher thermal resilience and tighter regulation but requires minor layout review for VCC decoupling; MPQ4485GQ-AEC1-Z reduces integration level and removes spread spectrum - trading EMI robustness for BOM simplicity in non-safety-critical zones.
Availability
MPQ4488TGU-FD-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, telematics, ADAS camera hubs, and rear-seat entertainment systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for MPQ4488TGU-FD-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 for automotive, industrial, and consumer markets, with global manufacturing and quality certifications including IATF 16949.
The MPQ4488 series belongs to MPS's AEC-Q100-qualified automotive DC-DC converter product line, designed specifically for USB charging port integration in harsh-temperature, high-EMI vehicle environments - emphasizing thermal resilience, functional safety readiness, and EMI compliance.
FAQ
What is the purpose of the FREQ pin on MPQ4488TGU-FD-AEC1-Z?
The FREQ pin configures switching frequency: floating or tied to VCC enables 450kHz ±10% spread spectrum for EMI reduction; connecting to GND via resistor selects discrete frequencies from 250kHz to 2.2MHz. Pulling FREQ to GND directly sets 250kHz fixed frequency without spread spectrum.
How does the 135°C load-shedding feature operate?
At 135°C junction temperature, the MPQ4488TGU-FD-AEC1-Z reduces USB port current limits to prevent thermal runaway, maintaining partial functionality instead of immediate shutdown. This allows continued operation under sustained high-ambient conditions until temperature decreases below 115°C hysteresis threshold.
Can MPQ4488TGU-FD-AEC1-Z support USB Type-C power delivery (PD) negotiation?
No. The device supports USB Type-C 5V@3A DFP mode only - it detects Type-C connections and sources 5V, but lacks USB PD PHY, BMC signaling, or variable-voltage negotiation capability. It complies with USB BC1.2 and Type-C 1.2 specifications for fixed 5V sourcing.
What is the minimum recommended output capacitance for stable operation?
The datasheet specifies ≥270µF total output capacitance (e.g., one 270µF or parallel 100µF + 100µF + 47µF) with ≤5mΩ ESR. Ceramic + polymer hybrid configurations are recommended to meet ripple (<50mVpp) and load-step response (<100µs settling) requirements across -40°C to +125°C.
Is MPQ4488TGU-FD-AEC1-Z pin-compatible with MPQ4488TGU-AEC1-Z?
Yes - both share identical QFN-26 (5mm×5mm) footprint and pin mapping. The only functional difference is spread spectrum enablement: MPQ4488TGU-FD-AEC1-Z activates ±10% modulation when FREQ is floated or tied to VCC, whereas MPQ4488TGU-AEC1-Z has no spread spectrum capability regardless of FREQ state.
Why is MPQ4488TGU-FD-AEC1-Z marked "NOT RECOMMENDED FOR NEW DESIGNS"?
MPS has superseded this variant with MPQ4488B, which improves thermal performance (lower RDS(ON), higher TJ rating), tightens output voltage tolerance, and enhances spread spectrum behavior. While MPQ4488TGU-FD-AEC1-Z remains fully qualified and supported for existing production, MPQ4488B is the designated replacement for new schematics.
How is USB port current limiting implemented and verified?
Each USB port uses internal current-sense amplifiers and comparators to enforce 3A limit in Type-C mode and 2.75A in Type-A mode. Limits are trimmed at wafer test and guaranteed over temperature (±6% at +25°C, ±10% over -40°C to +125°C), with hiccup-mode response triggered if VOUT drops >10% under overload.
MPQ4488TGU-FD-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-FD-AEC1-Z FAQ
1.How can I place an order for MPQ4488TGU-FD-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4488TGU-FD-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-FD-AEC1-Z reliable?
The price and inventory of MPQ4488TGU-FD-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-FD-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4488TGU-FD-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4488TGU-FD-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4488TGU-FD-AEC1-Z?
MPQ4488TGU-FD-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4488TGU-FD-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-FD-AEC1-Z?
For technical support, including MPQ4488TGU-FD-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4488TGU-FD-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4488TGU-FD-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4488TGU-FD-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-FD-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4488TGU-FD-AEC1-Z?
All MPQ4488TGU-FD-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4488TGU-FD-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-FD-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4488TGU-FD-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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