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Monolithic Power Systems Inc. MPQ4572GQB-AEC1-P
- Part No.:
- MPQ4572GQB-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 12-VFQFN
- Datasheet:
-
MPQ4572GQB-AEC1-P.pdf
- Description:
- IC REG BUCK ADJ 2A 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:896
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Product details
Overview
MPQ4572GQB-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade-1 qualified, fully integrated synchronous buck converter delivering up to 2A continuous output current with 4.5V–60V input range, 250mΩ/45mΩ internal MOSFETs, and 40μA quiescent current - designed for automotive infotainment, LED lamps, and motor control power rails.
For engineers reviewing the MPQ4572GQB-AEC1-P datasheet, MPQ4572GQB-AEC1-P pinout, MPQ4572GQB-AEC1-P application, or MPQ4572GQB-AEC1-P equivalent, key selection criteria include cold-crank low-dropout mode, valley-current OCP, AAM/CCM light-load operation, and QFN-12 (2.5mm×3mm) wettable flank packaging for automotive-grade solder joint inspection.
Technical Context
The MPQ4572GQB-AEC1-P employs peak-current-mode control with valley-current over-current protection and zero-cross detection for precise current limiting. Its advanced asynchronous modulation (AAM) dynamically scales switching frequency under light load to minimize gate drive and switching losses.
It integrates a bootstrap regulator, internal 0.45ms soft-start, power-good indicator with ±8% window, and 180° out-of-phase SYNC output for multi-phase synchronization - all while maintaining AEC-Q100 Grade-1 reliability across –40°C to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports full automotive battery range including cold-crank (down to 4V) and load-dump transients (up to 65V abs max). |
| Output Current | 2A continuous - sustained at full thermal rating with proper PCB copper area and airflow per θJA = 45°C/W on EVB. |
| Switching Frequency | Configurable 300kHz–2.2MHz via external resistor - enables compact magnetics and EMI optimization without sacrificing efficiency. |
| Quiescent Current | 40μA typical - ensures minimal battery drain in always-on automotive modules during sleep mode. |
| Shutdown Current | 2μA - enables ultra-low-power system-level standby states compliant with ISO 16750-2 requirements. |
| FB Reference Voltage | 0.800V ±1% (25°C), ±2% (–40°C to +125°C) - enables accurate output regulation across automotive temperature extremes. |
| Thermal Shutdown | 170°C with 25°C hysteresis - provides robust self-protection during overload or poor heatsinking conditions. |
Pinout & Package
MPQ4572GQB-AEC1-P is housed in a wettable flank QFN-12 package (2.5mm × 3mm, 0.5mm pitch), optimized for automated optical inspection (AOI) of solder joints in automotive production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BST | Bootstrap supply | Drives high-side MOSFET gate; requires 0.1μF ceramic capacitor between BST and SW for reliable bootstrapping. |
| 2 SW | Power switch node | High-current switching output; must be routed with wide, low-inductance trace to minimize EMI and voltage spikes. |
| 3 PG | Power good open-drain | Asserts high when VOUT is within 90–108% of target; pulls low at <84% or >116% - used for system sequencing and fault reporting. |
| 4 FB | Feedback input | Negative input of error amplifier; connects to resistor divider to set output voltage - also used by PG and UVLO circuits. |
| 5 FREQ | Frequency programming | Resistor-to-GND sets fSW: 76.8kΩ → 400kHz, 28kΩ → 1MHz, 12.1kΩ → 2.2MHz. |
| 6 VCC | Bias supply | Internal LDO output; requires ≥1μF decoupling capacitor close to pin for stable gate driver operation. |
| 7 GND | Ground reference | Primary IC ground; must connect to large copper pour tied to input/output capacitor negatives for low-impedance return path. |
| 8 IN | Main input supply | High-current VIN path; place ≥10μF ceramic capacitor as close as possible to reduce switching noise injection. |
| 9,10 NC | No connection | Internally unconnected; recommended to tie to GND for improved thermal conduction and EMI suppression. |
| 11 CCM/SYNCO | Mode select / sync output | Pull to GND (10–300kΩ) forces CCM; floating enables AAM; outputs 180° out-of-phase clock for multi-converter synchronization. |
| 12 EN | Enable control | Logic-high (>1.45V) enables converter; logic-low or floating disables - supports remote system-level power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 250mΩ HS / 45mΩ LS MOSFETs | Eliminates need for external Schottky diode and reduces BOM count while enabling >92% peak efficiency at 12V→5V/2A. |
| AAM light-load efficiency mode | Reduces switching frequency under light load to cut gate charge and core losses - extends battery runtime in always-on systems. |
| Low-dropout & high-duty-cycle mode | Maintains regulation down to VIN = VOUT + 0.5V during cold-crank events (e.g., 4.5V start-up into 5V rail), preventing system brownout. |
| Hiccup-mode short-circuit protection | Detects hard shorts via valley-current sensing and enters safe intermittent restart - protects MOSFETs and input source during fault. |
| Wettable flank QFN-12 package | Enables automated X-ray and AOI verification of solder fillet integrity - critical for zero-defect automotive manufacturing compliance. |
Applications
| Automotive Infotainment | Automotive LED Lighting |
|---|---|
|
Use Scenario: Powering head-unit SoC cores, display drivers, and audio amplifiers in vehicles with wide battery voltage swings. IC Role / Device Role / Timing Role: Primary 5V/3.3V step-down regulator supplying multiple downstream LDOs and PMICs. Use Value: AEC-Q100 qualification, cold-crank support, and 2μA shutdown current ensure uninterrupted operation during engine start-stop cycles. |
Use Scenario: Driving interior ambient lighting, dashboard backlighting, and adaptive front-lighting systems (AFS). IC Role / Device Role / Timing Role: Constant-voltage power stage feeding LED driver ICs or PWM-controlled LED strings. Use Value: High efficiency across dimming ranges (via AAM) minimizes thermal stress on LED assemblies and extends module lifetime. |
| Automotive Motor Control | Industrial Power Systems |
|
Use Scenario: Supplying gate drivers, position sensors, and MCU peripherals in HVAC blower, seat actuator, and window lift modules. IC Role / Device Role / Timing Role: Robust intermediate rail generator tolerant to load dump (65V abs max) and reverse battery conditions. Use Value: Integrated OCP, SCP, UVLO, and thermal shutdown eliminate need for discrete protection circuitry - reducing footprint and cost. |
Use Scenario: Providing isolated auxiliary rails in industrial PLCs, HMIs, and CAN gateway nodes operating in harsh environments. IC Role / Device Role / Timing Role: High-input-voltage primary DC-DC stage converting 24V/48V bus to 5V/3.3V logic supplies. Use Value: QFN-12 package with wettable flanks and AEC-Q100 reliability enable use in extended-temperature industrial deployments beyond automotive. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480-Q1 | 4.5V–60V input, 3.5A, 12-pin WQFN; higher current rating but larger package (3mm×4mm) and no wettable flanks. | Preferred where >2A output or lower RDS(on) is required; less suitable for space-constrained AOI-critical layouts. | Select LM61480-Q1 only if 3.5A capability is needed - MPQ4572GQB-AEC1-P offers better size efficiency and AOI compatibility at 2A. |
| TPS54560-Q1 | 3.5V–60V input, 5A, SOIC-8; external MOSFETs, higher BOM count, no integrated AAM, and no wettable flank option. | Suitable for cost-sensitive designs where layout area is not constrained and thermal design allows SOIC-8 footprint. | Choose TPS54560-Q1 only if external FET flexibility and legacy SOIC-8 assembly are mandatory - MPQ4572GQB-AEC1-P delivers superior integration and automotive manufacturability. |
Compared with LM61480-Q1 and TPS54560-Q1, MPQ4572GQB-AEC1-P uniquely combines AEC-Q100 Grade-1 reliability, wettable flank QFN-12 packaging, and AAM/CCM dual-mode operation in a 2.5mm×3mm footprint - optimizing for space, thermal, and automotive production requirements simultaneously.
Availability
MPQ4572GQB-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, LED lighting, and motor control applications requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for MPQ4572GQB-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 for automotive, industrial, and consumer markets.
The MPQ4572 product line delivers fully integrated, AEC-Q100-qualified buck converters targeting automotive subsystems requiring high input voltage tolerance, low quiescent current, and robust fault protection - especially in space- and reliability-constrained environments.
FAQ
What is the maximum allowable input voltage for MPQ4572GQB-AEC1-P?
The absolute maximum input voltage is 65V, with recommended operating range from 4.5V to 60V. This accommodates automotive battery transients including load dump (up to 65V) and cold-crank (down to ~4V), ensuring robust operation across ISO 16750-2 test profiles.
Does MPQ4572GQB-AEC1-P support synchronization with other converters?
Yes - the CCM/SYNCO pin functions as both a mode-select input and a 180° out-of-phase synchronization output. When configured as output, it drives an external clock signal to coordinate switching of multiple MPQ4572 devices, reducing input ripple and EMI peaks.
How does the AAM mode improve light-load efficiency?
AAM (Advanced Asynchronous Modulation) reduces switching frequency proportionally to load current, lowering gate driver and switching losses. At 1mA load, frequency drops below 100kHz - achieving >85% efficiency where forced CCM would fall below 60%.
What is the purpose of the wettable flank feature in the QFN-12 package?
Wettable flanks expose solderable metal along the vertical side walls of the QFN package, enabling automated optical inspection (AOI) of solder joint quality - a mandatory requirement for zero-defect automotive manufacturing per IATF 16949.
Can MPQ4572GQB-AEC1-P operate during automotive cold-crank conditions?
Yes - it features low-dropout mode and high-duty-cycle operation, sustaining regulation down to VIN = VOUT + 0.5V. At 5V output, it remains functional with input as low as 4.5V, meeting ISO 16750-2 cold-crank pulse requirements.
What protection features are integrated into MPQ4572GQB-AEC1-P?
It integrates valley-current OCP, hiccup-mode SCP, input UVLO (3.5V rising threshold), thermal shutdown (170°C), BST-SW UVLO, and PG monitoring - eliminating need for external protection components in most automotive designs.
Is the FB reference voltage stable over temperature?
Yes - VREF is 0.800V ±1% at 25°C and ±2% across –40°C to +125°C, with measured drift of <±10mV over full range. This ensures tight output regulation in engine bay and cabin environments without external trimming.
MPQ4572GQB-AEC1-P 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
- Supplier Device Package:
- 12-QFN (2.5x3)
MPQ4572GQB-AEC1-P FAQ
1.How can I place an order for MPQ4572GQB-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4572GQB-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 MPQ4572GQB-AEC1-P reliable?
The price and inventory of MPQ4572GQB-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 MPQ4572GQB-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4572GQB-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4572GQB-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4572GQB-AEC1-P?
MPQ4572GQB-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4572GQB-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 MPQ4572GQB-AEC1-P?
For technical support, including MPQ4572GQB-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4572GQB-AEC1-P requirements.
6.How does Aetrix verify that MPQ4572GQB-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4572GQB-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 MPQ4572GQB-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4572GQB-AEC1-P?
All MPQ4572GQB-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4572GQB-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 MPQ4572GQB-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4572GQB-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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