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Monolithic Power Systems Inc. MPQ4272GVE-0011-AEC1-Z
- Part No.:
- MPQ4272GVE-0011-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Special Purpose Regulators
- Package:
- 21-PowerVFQFN
- Datasheet:
-
MPQ4272GVE-0011-AEC1-Z.pdf
- Description:
- 36V, 3A, DUAL BUCK CONVERTER WIT
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MPQ4272GVE-0011-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 dual-channel synchronous buck converter IC for automotive USB Type-C power delivery, integrating two 3A monolithic DC/DC regulators with I²C/PMBus interface, 4V–36V input range, and programmable 1V–21V output per channel. It delivers precise current limiting (50mA steps), supports USB PD 3.0, and includes VBUS isolation gate drivers and battery short-to-ground protection.
For engineers reviewing the MPQ4272GVE-0011-AEC1-Z datasheet, MPQ4272GVE-0011-AEC1-Z pinout, MPQ4272GVE-0011-AEC1-Z application in USB PD automotive chargers, or MPQ4272GVE-0011-AEC1-Z equivalent for dual-buck AEC-Q100 power management, this device provides configurable switching frequency (250kHz–2.1MHz), OTP-programmable settings, and robust fault protection including OVP, thermal shutdown, and load-shedding alert.
Technical Context
The MPQ4272GVE-0011-AEC1-Z implements peak-current-mode control with fixed-frequency PWM across two independent channels, each featuring integrated 22mΩ high-side and 26mΩ low-side MOSFETs. Its dual-phase architecture supports interleaved operation with programmable phase delay via I²C to reduce input ripple.
It embeds a PMBus-compatible I²C interface (400kHz high-speed mode) with OTP memory for persistent configuration of output voltage, current limit, frequency spread spectrum, line drop compensation, and PFM/PWM mode selection-enabling dynamic reconfiguration without external MCU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 36V - supports full automotive battery range including cold-crank (4.5V) and load-dump (36V) transients. |
| Output Current per Channel | 3A continuous - enables dual-port USB-C PD charging (e.g., 5V@3A + 9V@3A) without external current-sharing circuitry. |
| Output Voltage Range | 1V to 21V with 12.6mV resolution - covers USB PD profiles (5V/9V/15V/20V) and custom rail generation via I²C DAC. |
| Switching Frequency | 250kHz / 420kHz / 1.1MHz / 2.1MHz selectable - allows optimization for EMI (low-freq) or size (high-freq) in constrained automotive layouts. |
| Current Limit Accuracy | ±5% at 3.6A - enables precise CC/CV USB PD compliance with 50mA-step I²C adjustment for fine-tuned port current allocation. |
| Thermal Shutdown Threshold | 170°C with 20°C hysteresis - ensures reliable operation under sustained 3A loads in sealed automotive enclosures. |
| I²C Interface Speed | 400kHz high-speed mode - permits real-time telemetry (voltage, current, temperature) and dynamic reconfiguration during vehicle runtime. |
Pinout & Package
MPQ4272GVE-0011-AEC1-Z is housed in a wettable-flank QFN-21 (4mm × 5mm) package optimized for automated optical inspection (AOI) and high-reliability automotive solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 VIN1/VIN2 | Power input supply rails | Drain terminals for internal HS-FETs; must be connected together and decoupled with low-ESR capacitors near package edge. |
| 2 PGND | Power ground reference | High-current return path for both buck channels; requires dedicated copper pour and multiple vias to inner ground plane. |
| 4, 21 FB1/FB2 | Feedback inputs | Resistor-divider nodes for closed-loop output voltage regulation; high-impedance inputs sensitive to PCB noise. |
| 6 SDA / 7 SCL | I²C bidirectional data/clock | PMBus-compatible interface for configuration, telemetry, and alert signaling; require 4.7kΩ pull-ups to VCC. |
| 8 ALT | Open-drain alert output | Active-low PMBus alert indicating fault conditions (OVP, thermal, current limit); sinks up to 25Ω pull-down. |
| 9 ISENS | Secondary current sense input | Monitors external current-sense resistor for battery short-to-ground detection; threshold: 130–190mV rising edge. |
| 10 GATEG | Ground-short protection gate driver | Drives external N-MOSFET to disconnect load during GND2 short events; features 12–25Ω internal pull-down. |
| 11, 14 BST1/BST2 | Bootstrap supplies | Connect 0.1µF ceramic capacitors to SW1/SW2 to bias high-side gate drivers; critical for duty cycle >95% operation. |
| 12, 13 SW1/SW2 | Switch node outputs | High dv/dt nodes driving external inductors; require wide, short traces and tight coupling to PGND for EMI control. |
| 15 VCC | Internal 5V LDO output | Supplies internal logic and gate drivers; requires 1µF ceramic decoupling adjacent to pin; BIAS pin can improve efficiency. |
| 16 AGND | Analog ground reference | Low-noise reference for FB, ISENS, and internal error amplifiers; must tie to PGND at single point near VCC capacitor. |
| 17 BIAS | LDO bias input | Enables secondary 5V LDO when driven ≥4.8V (e.g., from 5V/9V output); improves light-load efficiency by bypassing VIN-regulated LDO. |
| 18 DRV | Configurable 5.95V LDO output | Programmable via I²C for auxiliary rail generation; 1mA load capability; decoupled with 0.1µF ceramic capacitor. |
| 19 EN | Enable control with hysteresis | Logic-high enable threshold: 1.6V; internal 2MΩ pull-down; designed for resistor-divider connection to VIN for controlled startup. |
| 20 GATE1/GATE2 | VBUS isolation MOSFET drivers | 17V gate drive outputs for external N-channel switches on USB VBUS lines; support hot-plug sequencing and reverse-current blocking. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 3A or shared 6A buck topology | Enables flexible power partitioning: independent 3A rails for dual USB-C ports, or combined 6A for single high-power output. |
| Frequency spread spectrum (FSS) | Reduces peak EMI amplitude by ±12% frequency dithering-critical for passing CISPR 25 Class 5 automotive EMC requirements. |
| Line drop compensation | Compensates for IR drop in long harnesses by adjusting output voltage based on sensed input current-maintains stable VBUS at connector. |
| Low-dropout (LDO) mode | Extends regulation down to 99% duty cycle when VIN approaches VOUT-supports 12V→9V or 24V→20V conversion with minimal dropout loss. |
| Battery short-to-ground protection | Uses ISENS pin to detect GND2 shorts and triggers GATEG to disable external MOSFET within microseconds-prevents fuse blowout and system damage. |
| Load-shedding alert | ALT pin asserts during overcurrent or thermal events, enabling host MCU to gracefully shed non-critical loads before shutdown. |
Applications
| Automotive USB-C Dual-Port Charger | USB-PD Automotive Infotainment Supply |
|---|---|
|
Use Scenario: In-vehicle dual USB-C port delivering 5V/3A and 9V/3A simultaneously to smartphones and tablets. IC Role / Device Role / Timing Role: Primary dual-buck regulator managing independent output rails, I²C-configured voltage/current, and VBUS isolation control. Use Value: Eliminates need for discrete PD controllers and dual buck ICs-reduces BOM count by 40% and PCB area by 35% versus discrete solutions. |
Use Scenario: Powering head-unit SoC, display, and audio subsystems requiring tightly regulated 1.1V, 3.3V, and 5V rails. IC Role / Device Role / Timing Role: Configurable dual-buck source with dynamic voltage scaling via I²C to match SoC performance states. Use Value: Enables real-time rail adjustment (e.g., 5V→3.3V during low-power mode) reducing system quiescent current by 22%. |
| Automotive Telematics Control Unit (TCU) Power | ADAS Camera Module DC/DC Supply |
|
Use Scenario: Providing isolated, monitored 5V and 12V rails for LTE modem, GNSS receiver, and CAN gateway in TCU modules. IC Role / Device Role / Timing Role: Fault-resilient dual-buck with OVP, thermal shutdown, and load-shedding alert for functional safety compliance. Use Value: ALT pin alerts host processor of faults before thermal shutdown, enabling safe firmware recovery and log capture per ISO 26262 ASIL-B. |
Use Scenario: Generating clean 3.3V and 1.2V supplies for image sensor and ISP in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Low-noise buck regulator with soft-start and precise load regulation (<±0.5%) for pixel clock stability. Use Value: Achieves <10mVpp output ripple at 3A load-prevents image banding and ensures SNR >65dB in 12MP sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-buck automotive power delivery applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4272GVE-0000-AEC1-Z | Default OTP configuration (VOUT1=5V, VOUT2=5V, fSW=420kHz); no custom register settings preloaded. | Suitable for evaluation or standard dual-5V USB charging; lacks pre-programmed PD profiles. | Select when prototyping or when I²C initialization is handled entirely by host firmware. |
| MPQ4272GVE-0001-AEC1-Z | OTP programmed for VOUT1=9V, VOUT2=5V, 420kHz, and USB PD 3.0 timing parameters. | Optimized for asymmetric USB-C PD (e.g., laptop + phone), reducing host configuration overhead. | Choose for production systems requiring immediate USB PD compliance without I²C boot-up sequence. |
Compared with MPQ4272GVE-0000-AEC1-Z and MPQ4272GVE-0001-AEC1-Z, the -0011 variant offers user-defined OTP content (e.g., custom VOUT, current limits, spread spectrum depth), enabling differentiated product variants from a single hardware design while maintaining AEC-Q100 qualification.
Availability
MPQ4272GVE-0011-AEC1-Z is available at Aetrix Electronics and suitable for automotive USB-C charger designs, infotainment power supplies, and ADAS camera module DC/DC conversion requiring stable component supply, AEC-Q100 Grade 1 qualification, and I²C-configurable dual-buck functionality.
Supply support for MPQ4272GVE-0011-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 over 20 years of expertise in DC/DC converters, motor drivers, and LED drivers for automotive, industrial, and computing markets.
The MPQ4272 product line targets automotive USB power delivery systems, combining AEC-Q100 reliability, PMBus configurability, and integrated protection features to replace multi-chip PD solutions with a single monolithic IC.
FAQ
What AEC-Q100 grade does MPQ4272GVE-0011-AEC1-Z meet, and what temperature range does it support?
MPQ4272GVE-0011-AEC1-Z is qualified to AEC-Q100 Grade 1, supporting junction temperatures from –40°C to +150°C. This enables deployment in engine bay–adjacent locations and under-hood modules where ambient temperatures exceed 105°C, with thermal shutdown at 170°C and 20°C hysteresis for robust recovery.
How does the I²C interface support USB PD 3.0 compliance without an external PD controller?
The MPQ4272GVE-0011-AEC1-Z implements PMBus-compatible commands (VOUT_COMMAND, IOUT_OC_FAULT_LIMIT, FREQ_TRIM) that directly configure USB PD voltage profiles (5V/9V/15V/20V) and current limits. When paired with a USB-C CC logic IC (e.g., TUSB564), it eliminates the need for a separate PD microcontroller by handling all power stage control via I²C.
Can MPQ4272GVE-0011-AEC1-Z operate with only one channel enabled while the other remains powered down?
Yes-each buck channel has independent enable control via I²C (OPERATION command). Channel 2 can be placed in shutdown mode (0μA quiescent current) while Channel 1 delivers full 3A output, enabling dynamic power allocation in multi-rail systems without cross-regulation issues or efficiency penalty.
What is the purpose of the BIAS pin, and how does it improve system efficiency?
The BIAS pin powers a secondary 5V LDO that replaces the VIN-referenced primary LDO when driven ≥4.8V (e.g., from a 5V or 9V output rail). This reduces power dissipation in the LDO by ~35% at light loads, improving overall system efficiency-especially critical in always-on automotive modules with strict quiescent current budgets.
Does MPQ4272GVE-0011-AEC1-Z support phase interleaving, and how is it configured?
Yes-the internal oscillator generates two phase-shifted clock signals. Phase delay between channels is programmable via I²C (PHASE_DELAY command) in 90° increments (0°, 90°, 180°, 270°). Interleaving at 180° reduces input capacitor RMS current by 30%, allowing smaller, lower-cost bulk capacitance in space-constrained automotive designs.
How does the load-shedding alert (ALT pin) function during overcurrent events?
When overcurrent, overtemperature, or OVP is detected, the open-drain ALT pin pulls low within 200ns and holds until the fault clears. This signal can trigger an MCU interrupt to disable non-critical loads (e.g., displays, fans) before thermal shutdown occurs-preserving core functionality and enabling graceful degradation per ISO 26262 requirements.
What is the minimum off-time specification, and why is it critical for high-input-voltage operation?
The minimum off-time is 100ns (guaranteed by characterization). At high input voltages (e.g., 24V→5V), short off-times enable stable operation at high duty cycles (>95%) without pulse-skipping, ensuring consistent regulation and low output ripple-essential for powering noise-sensitive infotainment processors.
MPQ4272GVE-0011-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 21-PowerVFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Converter, USB
- Voltage - Input:
- 4V ~ 36V
- Number of Outputs:
- 2
- Voltage - Output:
- 1V ~ 21V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 21-QFN (4x5)
MPQ4272GVE-0011-AEC1-Z FAQ
1.How can I place an order for MPQ4272GVE-0011-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4272GVE-0011-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 MPQ4272GVE-0011-AEC1-Z reliable?
The price and inventory of MPQ4272GVE-0011-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 MPQ4272GVE-0011-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4272GVE-0011-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4272GVE-0011-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4272GVE-0011-AEC1-Z?
MPQ4272GVE-0011-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4272GVE-0011-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 MPQ4272GVE-0011-AEC1-Z?
For technical support, including MPQ4272GVE-0011-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4272GVE-0011-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4272GVE-0011-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4272GVE-0011-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 MPQ4272GVE-0011-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4272GVE-0011-AEC1-Z?
All MPQ4272GVE-0011-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4272GVE-0011-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 MPQ4272GVE-0011-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4272GVE-0011-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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