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Monolithic Power Systems Inc. MPQ4572GQB-P
- Part No.:
- MPQ4572GQB-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 12-VFQFN
- Datasheet:
-
MPQ4572GQB-P.pdf
- Description:
- IC REG BUCK ADJ 2A 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,115
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Product details
Overview
MPQ4572GQB-P 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 the primary DC-DC power stage in automotive infotainment and lamp control systems requiring cold-crank operation and high efficiency across light-to-full load.
For engineers reviewing the MPQ4572GQB-P datasheet, MPQ4572GQB-P pinout, MPQ4572GQB-P application, or MPQ4572GQB-P equivalent, key selection considerations include its 2.2MHz configurable switching frequency, valley-current OCP with hiccup SCP, AAM/CCM light-load mode selection, and QFN-12 (2.5mm×3mm) wettable flank package for automotive-grade solder joint inspection.
Technical Context
The MPQ4572GQB-P employs peak-current-mode control with slope compensation and valley-current detection for over-current protection, enabling fast transient response and stable regulation under dynamic load conditions. Its integrated high-side and low-side MOSFETs eliminate external diode requirements while supporting low-dropout mode during automotive cold-crank (VIN down to 4.5V).
Advanced Asynchronous Modulation (AAM) dynamically scales switching frequency under light loads to minimize gate driver and switching losses, achieving high efficiency at microamp-level quiescent current. The device features internal compensation, 180° out-of-phase SYNC clock output, and remote EN control with 1.45V typical enable 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 DSPs, LED drivers, and motor gate drivers in automotive modules |
| Switching Frequency | Configurable up to 2.2MHz via external resistor - enables compact magnetics and EMI filtering for space-constrained PCBs |
| Quiescent Current | 40μA typical - extends battery life in always-on automotive subsystems such as telematics and body controllers |
| FB Reference Voltage | 0.800V ±1% at 25°C - enables precise output regulation with standard resistor-divider feedback networks |
| Thermal Shutdown | 170°C with 25°C hysteresis - protects against sustained overload or poor heatsinking in sealed enclosures |
| Protection Features | OCP (valley-current), hiccup SCP, UVLO (4.0V rising), thermal shutdown - ensures robust operation in harsh automotive environments |
Pinout & Package
MPQ4572GQB-P is housed in a thermally enhanced QFN-12 package (2.5mm × 3mm, 0.5mm pitch) with wettable flanks for automated optical solder-joint inspection per AEC-Q200 requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BST | Bootstrap supply | Connects external capacitor between BST and SW to bias high-side MOSFET gate driver above VIN |
| SW | Power switch node | High-current switching output; requires wide PCB trace and tight layout to minimize EMI and voltage spikes |
| PG | Power good indicator | Open-drain output signaling VOUT within ±10% of target (90–108% FB); pulls low on fault (±16% deviation) |
| FB | Feedback input | Negative input of error amplifier; sets output voltage via external resistor divider; also used by PG and UVLO circuits |
| FREQ | Frequency setting | Resistor-to-GND sets fSW from 300kHz to 2.2MHz; enables optimization for efficiency vs. size trade-offs |
| VCC | Internal bias supply | Regulated internal rail; requires ≥1µF ceramic decoupling capacitor placed adjacent to pin |
| GND | Signal and power ground | Common reference for all analog and power circuits; must connect to large copper pour tied to input/output capacitors |
| IN | Main power input | Primary VIN connection; requires local high-frequency ceramic capacitor (≥1µF) placed directly at pin |
| EN | Enable control | Logic-level input (1.45V typical threshold); floating or low disables converter and reduces IQ to 2μA |
| CCM/SYNCO | Mode select & sync output | Pull to GND via resistor for forced CCM; float for AAM; outputs 180° out-of-phase clock for multi-phase synchronization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade-1 qualification | Rated for -40°C to +125°C junction temperature - validated for under-hood automotive applications |
| Wettable flank QFN-12 package | Enables automated X-ray and AOI inspection of solder joints - critical for zero-defect automotive manufacturing |
| Low-dropout mode | Maintains regulation down to VIN = VOUT + 0.5V - sustains operation during 4.5V cold-crank events without dropout |
| Internal compensation | Eliminates external compensation network - reduces BOM count and design iteration time for production boards |
| 180° out-of-phase SYNC clock | Allows interleaved operation with second MPQ4572GQB-P or compatible controller - cuts input ripple current by ~70% |
Applications
| Automotive Infotainment | Automotive Lamps and LEDs |
|---|---|
Use Scenario: Powering head-unit SoCs, audio amplifiers, and display backlights in 12V/24V vehicle architectures. IC Role / Device Role / Timing Role: Primary 5V/3.3V step-down regulator supplying core logic and analog rails with tight load-transient response. Use Value: AAM mode maintains >85% efficiency at 10mA standby current, extending ignition-off battery life while meeting CISPR-25 Class 5 EMI limits. | Use Scenario: Driving adaptive front-lighting systems (AFS) and interior ambient LED strings with PWM dimming. IC Role / Device Role / Timing Role: Constant-voltage source feeding external LED driver ICs; PG signal enables system-level fault reporting. Use Value: 60V absolute max input withstands 48V load-dump transients; valley-current OCP prevents thermal runaway during LED short-circuit events. |
| Automotive Motor Control | Industrial Power Systems |
Use Scenario: Supplying gate drivers and position sensors in electric power steering (EPS) and HVAC blower modules. IC Role / Device Role / Timing Role: High-reliability auxiliary supply generating isolated 12V/5V rails from main battery; operates through cold-crank dips. Use Value: Low-dropout mode sustains 5V output at VIN = 4.8V, preventing microcontroller brownout during engine start. | Use Scenario: Providing regulated 5V/12V rails in industrial HMIs, PLC I/O modules, and railway onboard electronics. IC Role / Device Role / Timing Role: Robust primary DC-DC stage replacing discrete buck solutions in extended-temperature (-40°C to +105°C) environments. Use Value: QFN-12 thermal resistance (θJA = 45°C/W on 4-layer board) enables 2A operation without heatsink in convection-cooled enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4572GQB-AEC1 | Same silicon die, AEC-Q100 Grade-1 certified; identical electrical specs and pinout | Required for automotive production programs needing formal qualification documentation | Select when automotive OEM compliance (PPAP, AEC test reports) is mandatory |
| LM61480QPWRQ1 | TI part: 60V, 8A, 2.1MHz, but higher IQ (15μA), no wettable flanks, different pinout (16-pin HTSSOP) | Higher current capability suits larger motors; lacks AAM and low-IQ advantage for always-on nodes | Choose only if >2A output or TI ecosystem alignment outweighs footprint and efficiency trade-offs |
Compared with MPQ4572GQB-AEC1, the MPQ4572GQB-P offers identical performance but lacks formal AEC-Q100 certification documentation-suitable for pre-qualification prototyping. Versus LM61480QPWRQ1, it delivers superior light-load efficiency and smaller footprint but lower current rating and no TI-specific support tools.
Availability
MPQ4572GQB-P is available at Aetrix Electronics and suitable for automotive infotainment, LED lighting, and motor control applications requiring stable component supply with AEC-Q100-aligned reliability and wettable flank inspection capability.
Supply support for MPQ4572GQB-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 design centers in the US, China, and Taiwan.
The MPQ4572 belongs to MPS's automotive-qualified buck converter product line, engineered specifically for harsh-environment DC-DC conversion in vehicles-emphasizing cold-crank resilience, EMI robustness, and zero-defect manufacturability.
FAQ
What is the maximum allowable input voltage for MPQ4572GQB-P?
The absolute maximum input voltage is 65V, but the recommended operating range is 4.5V to 60V. Operation at 60V is supported during load-dump events per ISO 7637-2 Pulse 5a, and the device maintains regulation down to 4.5V during cold-crank, verified per ISO 16750-2.
Does MPQ4572GQB-P require an external bootstrap capacitor?
Yes-a ceramic capacitor (typically 0.1µF) must be placed between BST and SW pins. This forms the floating supply for the high-side gate driver; incorrect placement or value causes erratic switching or failure to start.
How does the CCM/SYNCO pin function in AAM mode?
When left floating, CCM/SYNCO forces AAM operation under light loads, reducing switching frequency to minimize losses. When pulled to GND via 10kΩ–300kΩ, it forces fixed-frequency CCM-critical for noise-sensitive applications like audio amplifiers.
What is the purpose of the PG pin's 84%–116% voltage window?
The PG pin asserts high when VOUT is between 84% and 116% of the nominal setpoint (e.g., 4.2V–5.8V for 5V output), providing early fault detection before catastrophic regulation loss. Its open-drain structure allows wired-OR connection to system supervisors.
Can MPQ4572GQB-P operate without an external compensation network?
Yes-the device integrates full Type-II compensation, eliminating external RC networks. Only the feedback resistors (for VOUT setting) and input/output capacitors are required, reducing design complexity and bill-of-materials cost.
Is the QFN-12 package of MPQ4572GQB-P lead-free and RoHS compliant?
Yes-MPQ4572GQB-P is lead-free, halogen-free, and fully compliant with the EU RoHS directive (2011/65/EU). Full green status documentation is available on the MPS Quality Assurance website.
What thermal performance can be expected on a standard 4-layer PCB?
On an 8.9cm×8.9cm, 4-layer evaluation board (EVQ4572-QB-00A) with 2oz copper, θJA is 45°C/W. At 2A load and 25°C ambient, junction temperature rise is ~90°C, well below the 150°C limit-enabling full-rated output without heatsink.
MPQ4572GQB-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-P FAQ
1.How can I place an order for MPQ4572GQB-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4572GQB-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-P reliable?
The price and inventory of MPQ4572GQB-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-P is usually 5 days.
3.What payment methods are accepted for MPQ4572GQB-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4572GQB-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4572GQB-P?
MPQ4572GQB-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4572GQB-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-P?
For technical support, including MPQ4572GQB-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4572GQB-P requirements.
6.How does Aetrix verify that MPQ4572GQB-P is sourced from the original manufacturer or authorized distributors?
All MPQ4572GQB-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-P meets industry standards.
7.What is the process for return or replacement of MPQ4572GQB-P?
All MPQ4572GQB-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4572GQB-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-P part is unused and in its original packaging.
Return procedure for MPQ4572GQB-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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