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Monolithic Power Systems Inc. MPQ4572GQBE-AEC1-Z
- Part No.:
- MPQ4572GQBE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 12-VFQFN
- Datasheet:
-
MPQ4572GQBE-AEC1-Z.pdf
- Description:
- IC REG BUCK ADJ 2A 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
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Product details
Overview
MPQ4572GQBE-AEC1-Z from Monolithic Power Systems is a fully integrated, AEC-Q100 Grade-1 qualified synchronous buck converter delivering up to 2A continuous output current with 4.5V–60V input range, 250mΩ/45mΩ internal MOSFETs, and 40μA quiescent current. It serves as a primary DC-DC power stage in automotive infotainment systems requiring cold-crank operation and low-noise regulation.
For engineers reviewing the MPQ4572GQBE-AEC1-Z datasheet, MPQ4572GQBE-AEC1-Z pinout, MPQ4572GQBE-AEC1-Z application, or MPQ4572GQBE-AEC1-Z equivalent, key selection criteria include its wettable-flank QFN-12 package, 180° out-of-phase SYNC clock output, valley-current OCP, hiccup-mode short-circuit protection, and AAM/CCM light-load mode selectability.
Technical Context
The MPQ4572GQBE-AEC1-Z employs peak-current-mode control with internal slope compensation and valley-current detection for over-current protection. Its adaptive asynchronous modulation (AAM) dynamically scales switching frequency under light load to minimize gate driver and switching losses while maintaining regulation.
It integrates a bootstrap regulator for high-side gate drive, supports external frequency programming via resistor on FREQ pin (300kHz–2.2MHz), and provides low-dropout mode during automotive cold-crank (VIN down to 4.5V) with automatic transition to normal operation above UVLO threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports full automotive battery range including cold-crank (4.5V) and load-dump (60V) transients. |
| Output Current | 2A continuous - sufficient for powering microcontrollers, sensors, and display backlights in automotive modules. |
| Quiescent Current | 40μA typical - enables always-on functionality without excessive battery drain in parked vehicle states. |
| Shutdown Current | 2μA - meets ultra-low-power requirements for ECU sleep modes per ISO 16750-2. |
| FB Reference Voltage | 0.800V ±1% at 25°C - enables precise output voltage setting (e.g., 3.3V or 5V) using standard resistor dividers. |
| Switching Frequency | Configurable 300kHz–2.2MHz - allows optimization of size (higher fSW → smaller inductor/capacitor) vs. efficiency (lower fSW → lower switching loss). |
| Thermal Shutdown | 170°C with 25°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-off. |
Pinout & Package
MPQ4572GQBE-AEC1-Z is housed in a wettable-flank QFN-12 package (2.5mm × 3mm, 0.5mm pitch), enabling automated optical solder-joint inspection for automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST | Bootstrap supply | Connects external capacitor between BST and SW to generate floating gate drive voltage for high-side MOSFET. |
| SW | Power switch node | High-current switching output; requires wide PCB trace and low-inductance layout to minimize EMI and voltage spikes. |
| PG | Power good indicator | Open-drain output asserting high when VOUT is within ±10% of target; used for system power sequencing and fault monitoring. |
| FB | Feedback input | Connects to resistor divider tap; error amplifier compares this to 0.8V reference to regulate output voltage. |
| FREQ | Frequency programming | Resistor-to-GND sets switching frequency; enables synchronization or EMI spread-spectrum tuning. |
| VCC | Internal bias supply | Requires ≥1µF ceramic decoupling capacitor close to pin to stabilize internal logic and gate drivers. |
| GND | Ground reference | Must connect to large copper pour tied to input/output capacitor negatives for low-impedance return path. |
| IN | Main power input | Accepts 4.5V–60V; place low-ESR bulk capacitor ≤2mm from pin to suppress switching noise. |
| EN | Enable control | Logic-high (>1.45V) enables converter; floating or low disables with 2μA shutdown current. |
| CCM/SYNCO | Mode select / sync output | Pull to GND for forced CCM; float for AAM; outputs 180° out-of-phase clock for multi-phase synchronization. |
| NC (9,10) | No connection | May be tied to GND to improve thermal dissipation and reduce EMI coupling in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-12 | Enables AOI-compatible solder joint inspection for zero-defect automotive manufacturing. |
| AEC-Q100 Grade-1 qualification | Rated for -40°C to +125°C junction temperature - validated for engine bay and head-unit environments. |
| Valley-current OCP with hiccup SCP | Detects overcurrent at switch turn-off point and enters safe, self-recovering shutdown during sustained short circuits. |
| Low-dropout mode | Maintains regulation down to VIN = VOUT + dropout voltage (~1.5V at 2A), critical for 6V cold-crank survival. |
| Internal compensation | Eliminates need for external Type-II/III compensation network - reduces BOM count and layout sensitivity. |
Applications
| Automotive Infotainment | Automotive LED Lighting |
|---|---|
Use Scenario: Powering SoC, audio DSP, and touch controller in head units with variable battery voltage (6V–16V) and EMI-sensitive analog circuitry. IC Role / Device Role / Timing Role: Primary 5V/3.3V step-down regulator with PG signaling for safe boot sequence and AAM mode for low-noise standby operation. Use Value: Delivers >90% efficiency across 10mA–2A load range while meeting CISPR-25 Class 5 radiated/conducted emissions limits without added filters. | Use Scenario: Driving RGB LED clusters in instrument panels and ambient lighting with dimming control and thermal derating. IC Role / Device Role / Timing Role: Constant-voltage source with tight line/load regulation (±0.2%) and fast transient response (<50μs recovery from 1A step load). Use Value: Maintains stable LED brightness during load dump (48V) and cold crank (4.5V) without flicker or reset, enabled by low-dropout mode and robust OCP. |
| Automotive Motor Control | Industrial Power Systems |
Use Scenario: Supplying gate drivers and MCU for BLDC fans and HVAC actuators exposed to high-temperature under-hood conditions. IC Role / Device Role / Timing Role: High-reliability 12V intermediate rail generator with thermal shutdown (170°C) and auto-recovery behavior. Use Value: Survives 150°C ambient via thermal derating and delivers consistent 2A output without external heatsink due to 11°C/W θJC (EVB). | Use Scenario: Replacing discrete buck controllers in industrial HMIs and PLC I/O modules requiring long-term supply continuity. IC Role / Device Role / Timing Role: Drop-in replacement for legacy 60V buck ICs with enhanced light-load efficiency and simplified layout (no external Schottky diode). Use Value: Reduces total solution size by 35% versus discrete solutions and eliminates external freewheeling diode conduction losses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4570GQ-AEC1-Z | 1.2A output current, same 4.5V–60V input, identical pinout and features except reduced current capability. | Suitable only for sub-1.2A loads; not interchangeable in 2A designs without revalidation. | Select when system load is ≤1.2A and board space or cost optimization is prioritized over margin. |
| TPS54360BQPWPRQ1 | TI part with 3.5A rating, 3.5V–60V input, but requires external compensation and lacks wettable flank package. | Higher current headroom but larger solution size and no AOI support; different EN/PG logic thresholds. | Choose if higher output current or TI ecosystem compatibility is required, accepting increased layout complexity and test overhead. |
Compared with MPQ4570GQ-AEC1-Z, the MPQ4572GQBE-AEC1-Z provides 67% higher output current in the same footprint; compared with TPS54360BQPWPRQ1, it offers integrated compensation and wettable flank inspection readiness at the expense of 1.5A current headroom.
Availability
MPQ4572GQBE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, LED lighting, and motor control applications requiring stable component supply under AEC-Q100 Grade-1 compliance and long-term production continuity.
Supply support for MPQ4572GQBE-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.
The MPQ4572 product line delivers compact, AEC-Q100-qualified synchronous buck converters optimized for harsh automotive environments, emphasizing cold-crank resilience, low EMI, and zero-defect manufacturability.
FAQ
What is the purpose of the CCM/SYNCO pin?
The CCM/SYNCO pin serves dual functions: pulling it to GND forces continuous conduction mode (CCM) for constant-frequency operation, while leaving it floating enables adaptive asynchronous modulation (AAM) for light-load efficiency. It also outputs a 180° out-of-phase clock signal to synchronize multiple converters and reduce input ripple current.
How does the MPQ4572GQBE-AEC1-Z handle cold-crank conditions?
It maintains regulation down to 4.5V input via low-dropout mode, where the high-side MOSFET operates in linear region to sustain output voltage during engine cranking. The device remains functional without reset or dropout, and resumes normal PWM operation once VIN exceeds the UVLO rising threshold (4.0V typical).
What is the significance of the wettable flank package?
The wettable flank QFN-12 allows automated optical inspection (AOI) of solder joints on the side walls of the package, enabling 100% solder quality verification in automotive SMT lines. This meets zero-defect requirements for safety-critical applications and eliminates reliance on X-ray inspection.
Can the MPQ4572GQBE-AEC1-Z be used without an external compensation network?
Yes - it features fully internal compensation, eliminating the need for external Type-II or Type-III networks. This simplifies design, reduces component count, and improves immunity to layout parasitics, while maintaining stability across all operating conditions specified in the datasheet.
What protection features are implemented beyond over-current and thermal shutdown?
In addition to valley-current OCP and auto-recovery thermal shutdown, it includes hiccup-mode short-circuit protection, input UVLO with 500mV hysteresis, power-good monitoring with ±10% window, BST-SW UVLO, and negative-current limiting in forced CCM mode to prevent reverse inductor current.
Is the PG pin compatible with 3.3V logic systems?
Yes - the open-drain PG pin requires an external pull-up resistor to the system's logic rail (e.g., 3.3V or 5V). It sinks ≥4mA when active-low and leaks <1μA when high, ensuring reliable interfacing with standard microcontroller GPIOs without level-shifting.
How is EMI performance validated for automotive use?
EMI performance was measured per CISPR-25 Class 5 on the EVQ4572-QB-00A evaluation board with integrated EMI filter, demonstrating compliance for both conducted (150kHz–108MHz) and radiated (150kHz–1GHz) emissions in horizontal/vertical polarization - meeting OEM requirements without additional filtering.
MPQ4572GQBE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 12-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 54V
- Current - Output:
- 2A
- Frequency - Switching:
- 400kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 12-QFN (2.5x3)
MPQ4572GQBE-AEC1-Z FAQ
1.How can I place an order for MPQ4572GQBE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4572GQBE-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 MPQ4572GQBE-AEC1-Z reliable?
The price and inventory of MPQ4572GQBE-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 MPQ4572GQBE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4572GQBE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4572GQBE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4572GQBE-AEC1-Z?
MPQ4572GQBE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4572GQBE-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 MPQ4572GQBE-AEC1-Z?
For technical support, including MPQ4572GQBE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4572GQBE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4572GQBE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4572GQBE-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 MPQ4572GQBE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4572GQBE-AEC1-Z?
All MPQ4572GQBE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4572GQBE-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 MPQ4572GQBE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4572GQBE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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