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Monolithic Power Systems Inc. MPQ4572GQBE-AEC1-P
- Part No.:
- MPQ4572GQBE-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 12-VFQFN
- Datasheet:
-
MPQ4572GQBE-AEC1-P.pdf
- Description:
- IC REG BUCK ADJ 2A 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,048
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Product details
Overview
MPQ4572GQBE-AEC1-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 a primary DC-DC regulator in automotive infotainment power rails where cold-crank (low-dropout) and high-efficiency light-load operation are critical.
For engineers reviewing the MPQ4572GQBE-AEC1-P datasheet, MPQ4572GQBE-AEC1-P pinout, MPQ4572GQBE-AEC1-P application, or MPQ4572GQBE-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-12 package for automotive solder-joint inspection, valley-current OCP architecture, 180° out-of-phase SYNC clock output, and AAM/CCM mode selectability under varying load conditions.
Technical Context
The MPQ4572GQBE-AEC1-P employs peak-current-mode control with valley-current detection for over-current protection and integrates both high-side and low-side power MOSFETs (250mΩ HS / 45mΩ LS at 25°C). Its advanced asynchronous modulation (AAM) dynamically scales switching frequency below 400kHz during light loads to minimize gate driver and switching losses.
It features internal compensation, 0.45ms soft-start, remote EN control, and a dedicated open-drain PG pin with ±8% regulation window (90–108% VFB). The CCM/SYNCO pin serves dual function: mode selection (CCM forced via resistor-to-GND) and synchronization output (180° phase-shifted clock).
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 4.5V) and load-dump transients (up to 60V). |
| Output Current | 2A continuous - sufficient for powering microcontrollers, display drivers, and LED backlights in automotive modules. |
| Quiescent Current | 40μA typical - enables always-on functionality in battery-sensitive systems without excessive standby drain. |
| Switching Frequency | Configurable 300kHz–2.2MHz via external resistor - allows optimization of size (higher fSW) vs. efficiency (lower fSW) and EMI compliance. |
| Feedback Reference | 0.800V ±1% at 25°C - enables precise output regulation across temperature with standard resistor-divider design. |
| Thermal Shutdown | 170°C with 25°C hysteresis - protects against sustained overload while permitting brief transient overloads without latch-off. |
| PG Accuracy Window | 90–108% VFB for assertion; 84–116% for deassertion - provides robust power-good signaling for downstream sequencers and safety monitors. |
Pinout & Package
MPQ4572GQBE-AEC1-P is housed in a wettable-flank QFN-12 package (2.5mm × 3mm, 0.5mm pitch), enabling automated optical inspection (AOI) of solder joints per automotive manufacturing requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BST | Bootstrap supply | Connects external capacitor between BST and SW to generate floating gate drive voltage for high-side MOSFET. |
| 2 SW | Switch node | Drives external inductor; requires wide PCB trace and low-inductance layout to minimize switching loss and EMI. |
| 3 PG | Power good indicator | Open-drain output pulled low if VOUT falls outside 90–108% of target; requires external pull-up for system monitoring. |
| 4 FB | Feedback input | Negative input of error amplifier; connects to resistor divider to set output voltage and enable PG/UVLO functions. |
| 5 FREQ | Frequency setting | Resistor-to-GND sets switching frequency from 300kHz to 2.2MHz; higher resistance yields lower frequency. |
| 6 VCC | Bias supply | Internal LDO output; requires ≥1µF ceramic decoupling capacitor placed adjacent to pin for stable gate drive. |
| 7 GND | Ground reference | Primary IC ground; must connect to large copper pour tied to input/output capacitor negatives for thermal and EMI performance. |
| 8 IN | Main power input | Accepts full 4.5–60V input; requires local ceramic decoupling capacitor placed as close as possible to reduce ringing. |
| 9,10 NC | No connection | Internally unconnected; recommended to tie to GND for improved thermal conduction and EMI shielding. |
| 11 CCM/SYNCO | Mode control & sync output | Configures light-load operation (CCM/AAM); also outputs 180° phase-shifted clock for multi-phase synchronization. |
| 12 EN | Enable input | Active-high logic input; 1.45V typical threshold with 330mV hysteresis ensures noise-immune startup/shutdown sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-12 package | Enables automated optical inspection (AOI) of solder fillets on all side pins-critical for zero-defect automotive production. |
| AAM light-load efficiency mode | Reduces switching frequency under light loads to cut gate charge and core losses, achieving >85% efficiency at 1mA output. |
| Valley-current OCP with hiccup SCP | Detects current at switch turn-off to prevent runaway; short-circuit triggers auto-restart hiccup mode instead of latch-off. |
| Low-dropout mode for cold crank | Maintains regulation down to VIN = VOUT + 0.5V, supporting engine start scenarios where battery drops to 4.5V. |
| 180° out-of-phase SYNC clock | Allows synchronized interleaving with other MPQ4572 or compatible converters to reduce input/output ripple and EMI peaks. |
| Internal 0.45ms soft-start | Prevents inrush current and output overshoot during power-up; eliminates need for external timing components. |
Applications
| Automotive Infotainment Head Unit | Automotive LED Headlamp Driver |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in a 12V/24V vehicle platform with cold-crank and load-dump immunity. IC Role / Device Role / Timing Role: Primary 5V/3.3V point-of-load regulator with PG signaling for safe system boot sequencing. Use Value: Wettable flank package ensures AOI-compliant assembly; AAM mode extends battery runtime during parked infotainment use. |
Use Scenario: Supplies constant-current LED driver ICs in adaptive front-lighting systems requiring stable 12V rail. IC Role / Device Role / Timing Role: High-voltage buck stage stepping down from battery to intermediate LED driver input voltage. Use Value: 60V absolute max rating withstands 48V load-dump transients; valley-current OCP prevents LED string fault escalation. |
| Automotive HVAC Control Module | Industrial CAN Node Power Supply |
|
Use Scenario: Provides regulated 5V for microcontroller, motor drivers, and sensor interfaces in cabin climate control units. IC Role / Device Role / Timing Role: Main system power regulator with EN-controlled sleep/wake and PG-monitored brownout recovery. Use Value: 2μA shutdown current enables ultra-low-power wake-on-event capability; thermal shutdown protects against enclosed enclosure overheating. |
Use Scenario: Generates isolated 5V rail for CAN transceiver and microcontroller in industrial gateways operating from 24V DC bus. IC Role / Device Role / Timing Role: Non-isolated pre-regulator feeding isolated DC-DC stage; operates in fixed-frequency CCM for predictable EMI. Use Value: CISPR25 Class 5 compliant with standard filter (per EVQ4572-QB-00A); SYNC output enables multi-rail EMI alignment. |
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 die, standard QFN-12 (non-wettable flank); identical electrical specs and pinout. | Lacks AOI capability; suitable for non-automotive or less stringent manufacturing environments. | Select when AOI is not required and cost sensitivity outweighs process inspection needs. |
| LM61480-Q1 | TI part: 60V, 8A, 2.1MHz max, no SYNC output, different OCP method (peak-only), larger HTSSOP-16 package. | Higher current capacity but lacks 180° sync clock and wettable flank; requires more board area. | Choose only if >2A output or TI ecosystem compatibility is mandatory; otherwise MPQ4572GQBE-AEC1-P offers superior integration and footprint. |
Compared with MPQ4572GQB-AEC1, the GQBE variant adds manufacturability assurance via wettable flanks; versus LM61480-Q1, it delivers smaller size, built-in sync capability, and tighter light-load efficiency control-making it optimal for space-constrained, EMI-sensitive automotive modules.
Availability
MPQ4572GQBE-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, LED lighting, and motor control applications requiring stable component supply, AEC-Q100 qualification, and wettable-flank inspection support.
Supply support for MPQ4572GQBE-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, with over two decades of leadership in DC-DC conversion and automotive-grade solutions.
The MPQ4572 product line targets automotive subsystems requiring high-input-voltage resilience, compact footprint, and AEC-Q100 reliability-designed specifically for infotainment, lighting, and body electronics where cold-crank and EMI compliance are non-negotiable.
FAQ
What is the purpose of the CCM/SYNCO pin?
The CCM/SYNCO pin has dual functionality: when pulled to GND via resistor (10kΩ–300kΩ), it forces continuous conduction mode (CCM); when left floating, it enables advanced asynchronous modulation (AAM) under light loads. It also outputs a 180° out-of-phase clock signal for synchronizing multiple converters to reduce input ripple and EMI peaks.
How does the MPQ4572GQBE-AEC1-P handle cold-crank conditions?
It enters low-dropout mode when input voltage falls near output voltage, maintaining regulation down to VIN = VOUT + 0.5V. Combined with 4.5V UVLO threshold and hysteresis, this ensures uninterrupted operation during engine cranking events where battery voltage dips to ~4.5V for several hundred milliseconds.
Is external compensation required for stability?
No. The MPQ4572GQBE-AEC1-P features fully internal compensation, eliminating the need for external Type-II or Type-III networks. Stability is guaranteed across the full input/output/load range using only the recommended external components: input/output capacitors, inductor, feedback resistors, and BST capacitor.
What is the significance of the wettable flank package?
The wettable flank QFN-12 exposes solderable metal on the vertical side walls of each pin, enabling automated optical inspection (AOI) of solder joint quality-mandatory for zero-defect requirements in automotive Tier-1 manufacturing. It does not affect electrical performance but significantly improves process yield verification.
Does the device support forced PWM operation at all load levels?
Yes. Connecting the CCM/SYNCO pin to GND via a resistor (10kΩ–300kΩ) forces continuous conduction mode (CCM) regardless of load, eliminating frequency variation and ensuring predictable EMI behavior-a key requirement for noise-sensitive automotive sensors and RF modules.
How is power good (PG) asserted and deasserted?
PG asserts (pulls low) when VFB is within 90–108% of the 0.800V reference; it deasserts (goes high-impedance) when VFB falls below 84% or rises above 116%. This 16% hysteresis window ensures robust noise immunity and prevents false toggling during transient load steps or input dips.
What protection features are implemented beyond OCP and thermal shutdown?
In addition to valley-current OCP and auto-recovery thermal shutdown, the device includes hiccup-mode short-circuit protection, input UVLO with 500mV hysteresis, BST-SW UVLO (1.4–2.5V), and negative-current limiting in CCM mode (–1.3A typical) to prevent reverse inductor current damage during light-load transitions.
MPQ4572GQBE-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, Wettable Flank
- Supplier Device Package:
- 12-QFN (2.5x3)
MPQ4572GQBE-AEC1-P FAQ
1.How can I place an order for MPQ4572GQBE-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4572GQBE-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 MPQ4572GQBE-AEC1-P reliable?
The price and inventory of MPQ4572GQBE-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 MPQ4572GQBE-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4572GQBE-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4572GQBE-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4572GQBE-AEC1-P?
MPQ4572GQBE-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4572GQBE-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 MPQ4572GQBE-AEC1-P?
For technical support, including MPQ4572GQBE-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4572GQBE-AEC1-P requirements.
6.How does Aetrix verify that MPQ4572GQBE-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4572GQBE-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 MPQ4572GQBE-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4572GQBE-AEC1-P?
All MPQ4572GQBE-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4572GQBE-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 MPQ4572GQBE-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4572GQBE-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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