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Monolithic Power Systems Inc. MPQ4360GRE-AEC1-Z
- Part No.:
- MPQ4360GRE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 20-PowerVFQFN
- Datasheet:
-
MPQ4360GRE-AEC1-Z.pdf
- Description:
- IC REG BUCK ADJ 6A 20QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MPQ4360GRE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter with integrated 50mΩ high-side and 22mΩ low-side MOSFETs, delivering up to 6A continuous output current across a 3.3V–40V input range. It features 1.7μA shutdown quiescent current, configurable switching frequency (350kHz–2.2MHz), and supports automotive cold-crank operation via low-dropout mode. It is deployed in infotainment power rails requiring high efficiency and robust thermal performance.
For engineers reviewing the MPQ4360GRE-AEC1-Z datasheet, MPQ4360GRE-AEC1-Z pinout, MPQ4360GRE-AEC1-Z application, or MPQ4360GRE-AEC1-Z equivalent, key selection criteria include its AEC-Q100 qualification, 6A output capability at 40V max VIN, 0.815V feedback reference, QFN-20 wettable flank package, and support for multi-phase synchronization via SYNCIN/SYNCO/ICS pins.
Technical Context
The MPQ4360GRE-AEC1-Z uses current-mode control with fast loop response and implements Advanced Asynchronous Modulation (AAM) for light-load efficiency optimization. Its internal power stage integrates matched high- and low-side MOSFETs with temperature-compensated on-resistance (RON_HS: 50–83mΩ, RON_LS: 22–44mΩ) and supports frequency foldback during startup to prevent inductor current runaway.
It provides dual operating modes-FCCM (forced continuous conduction) and AAM-selected via the MODE pin, and includes dedicated pins for external soft-start (SS), power-good monitoring (PG), current sharing (ICS), and precise output voltage regulation (FB = 0.815V ±1.5%). Thermal shutdown triggers at 170°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.3V to 40V - supports full automotive battery range including cold-crank (down to 3.3V) and load-dump transients. |
| Output Current | 6A continuous - enables single-chip power supply for high-current domains like display backlight or SoC core rails. |
| Quiescent Current | 1.7μA in shutdown - extends battery life in always-on automotive modules such as telematics wake-up circuits. |
| Feedback Reference | 0.815V ±1.5% - sets precise output voltage with external resistor divider; stable over -40°C to +150°C junction temp. |
| Switching Frequency | Configurable 350kHz–2.2MHz - allows EMI optimization and inductor size reduction; supports external sync and out-of-phase multi-phase operation. |
| Thermal Protection | 170°C shutdown with 20°C hysteresis - ensures fault-tolerant operation under sustained overload or poor PCB thermal design. |
| Package | QFN-20 (4mm × 4mm) with wettable flanks - enables automated optical inspection (AOI) and improves solder joint reliability in automotive reflow processes. |
Pinout & Package
MPQ4360GRE-AEC1-Z is housed in a thermally enhanced QFN-20 (4mm × 4mm) package with wettable flanks for reliable solder joint inspection. The exposed thermal pad (Pin 17 AGND) must be connected to a solid ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | Mode selection | High = FCCM; Low = AAM; floating prohibited - determines light-load efficiency strategy and ripple profile. |
| 2 SYNCIN | External clock input | Accepts 350kHz–2.2MHz sync signal; enables multi-phase interleaving and EMI spread-spectrum alignment. |
| 3,12 VIN | Main power input | Dual-input configuration reduces high-frequency noise coupling; requires local ceramic decoupling near each pin. |
| 4,5,10,11 PGND | Power ground return | Four dedicated PGND pins minimize ground bounce and improve current sharing between high-side/low-side switches. |
| 6 BST | Bootstrap supply | Connects to SW node via capacitor; supplies gate drive for high-side MOSFET; critical for duty cycle >90% operation. |
| 7,8 SW | Switch node | Drives external inductor; high di/dt node requiring tight layout and minimized loop area to reduce EMI. |
| 9 EN | Enable control | Active-high logic (1V threshold); enables precise sequencing with external microcontroller or PMIC. |
| 13 SYNCO | Synchronization output | 180° out-of-phase clock output - simplifies multi-phase timing without external delay networks. |
| 14 PG | Power-good indicator | Open-drain output active when VOUT is within ±5% of target; used for system reset or enable sequencing. |
| 15 ICS | Current share control | Enables accurate current balancing across parallel phases; tied to VCC in single-phase configurations. |
| 16 VCC | Bias supply | Internally regulated 4.9V rail powers gate drivers and control logic; requires local 1μF ceramic decoupling. |
| 17 AGND | Analog ground | Separate ground for FB, SS, and MODE; must be connected to PGND only at single point to avoid noise coupling. |
| 18 FB | Feedback input | 0.815V reference; connects to resistor divider midpoint - dictates output voltage with <±0.5% typical accuracy. |
| 19 SS | Soft-start timing | 6µA current source charges external capacitor; controls ramp rate of output voltage to limit inrush current. |
| 20 FREQ | Frequency setting | Resistor-to-ground sets fSW (e.g., 62kΩ → 470kHz); enables fine-tuned EMI compliance without changing inductors. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for operation from −40°C to +150°C junction temperature - meets automotive power system reliability requirements. |
| MeshConnect™ flip-chip packaging | Reduces parasitic inductance and improves thermal resistance (θJC = 2.5°C/W on EV board) - enhances efficiency and EMC performance. |
| Configurable frequency with external sync | Supports 350kHz–2.2MHz operation and synchronization to external clock - enables deterministic EMI management in complex vehicle ECUs. |
| Hiccup-mode over-current protection | Auto-retry current limiting during short-circuit - prevents thermal runaway while maintaining system visibility via PG flag. |
| Low-dropout mode | Maintains regulation down to VIN ≈ VOUT + 0.5V - sustains functionality during automotive cold-crank (e.g., 6V start with 5V output). |
| CISPR-25 Class 5 compliance | Validated EMI performance in automotive environments - reduces need for external filtering in infotainment and cluster designs. |
Applications
| Automotive Infotainment | Automotive Clusters |
|---|---|
|
Use Scenario: Powering LCD display backlight and audio amplifier in head-unit systems with wide input voltage variation. IC Role / Device Role / Timing Role: Primary 5V/3.3V buck regulator supplying power to SoC peripherals and analog subsystems. Use Value: AAM mode reduces no-load IQ to 22μA, extending standby time; CISPR-25 Class 5 compliance eliminates external EMI filters. |
Use Scenario: Generating instrument cluster MCU core voltage (1.2V) and CAN transceiver supply (5V) from 12V battery. IC Role / Device Role / Timing Role: Dual-output capable via external LDO post-regulation; supports cold-crank with dropout <0.5V. Use Value: 170°C thermal shutdown protects against prolonged overtemperature in sealed dash enclosures; wettable flanks ensure solder joint integrity. |
| Automotive Telematics | Industrial Power Systems |
|
Use Scenario: Supplying LTE modem, GNSS receiver, and secure element in connected car TCU modules. IC Role / Device Role / Timing Role: High-efficiency 3.3V/1.8V regulator with ultra-low shutdown IQ (1.7μA) for always-on wake-up circuitry. Use Value: Multi-phase capability (via ICS/SYNCIN/SYNCO) enables scalable 12A+ solutions without redesign; AEC-Q100 ensures field reliability. |
Use Scenario: Replacing legacy discrete buck controllers in industrial HMIs and programmable logic controllers with extended temperature range. IC Role / Device Role / Timing Role: Single-chip 6A solution replacing controller + external MOSFETs - reduces BOM count and layout complexity. Use Value: QFN-20 package with 44°C/W θJA enables operation at full load without heatsink in 70°C ambient industrial cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4361GRE-AEC1-Z | Same architecture but rated for 4A output; lower RON_HS (45mΩ) and RON_LS (18mΩ); identical pinout and feature set. | Targeted at lower-power clusters or ADAS sensors where 4A suffices; reduced thermal stress at same PCB area. | Select when full 6A capability is unnecessary - lowers cost and improves light-load efficiency due to lower MOSFET losses. |
| TPS546B24RVFT | TI part with 10A rating, 3.5V–18V input, PMBus interface, and digital loop compensation; different package (VQFN-26) and pinout. | Used where telemetry, dynamic voltage scaling, or multi-rail coordination is required - not drop-in compatible. | Choose only if digital control, telemetry, or higher current is needed; requires full schematic and layout redesign. |
Compared with MPQ4361GRE-AEC1-Z, the MPQ4360GRE-AEC1-Z delivers 50% higher output current in identical footprint and thermal profile; versus TPS546B24RVFT, it offers simpler analog control, broader input range, and lower system-level cost - but lacks digital configurability.
Availability
MPQ4360GRE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, instrument clusters, and telematics modules requiring stable component supply under AEC-Q100-compliant production programs.
Supply support for MPQ4360GRE-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 focus on efficiency, integration, and automotive-grade reliability.
The MPQ4360 belongs to MPS's automotive-qualified DC/DC converter product line, designed specifically for demanding vehicular power systems requiring wide VIN range, low IQ, and robust thermal/EMI performance.
FAQ
What is the minimum input voltage required for regulation under cold-crank conditions?
The MPQ4360GRE-AEC1-Z maintains regulation down to VIN ≈ VOUT + 0.5V in low-dropout mode. For a 5V output, it operates stably at VIN as low as 5.5V - sufficient to sustain function during automotive cold-crank events where battery voltage dips to 6V.
How does the MODE pin affect efficiency and output ripple?
When MODE is pulled low, the device enters Advanced Asynchronous Modulation (AAM), skipping pulses under light load to reduce switching losses - improving efficiency but increasing low-frequency ripple. When pulled high, Forced Continuous Conduction Mode (FCCM) maintains constant frequency and lower ripple at the cost of higher light-load IQ.
Can MPQ4360GRE-AEC1-Z synchronize to an external clock below 350kHz?
No. The SYNCIN pin accepts only 350kHz–2.2MHz external clocks. Frequencies below 350kHz are not supported and may cause unstable operation or failure to lock. For sub-350kHz applications, use internal oscillator with FREQ pin resistor.
What is the recommended layout practice for the BST capacitor?
The BST capacitor must be placed directly between BST and SW pins with minimal trace length and width ≥0.3mm. Use a 0.1μF X7R ceramic capacitor rated for ≥16V. Avoid routing other signals near this node to prevent coupling into the high-side gate drive path.
Does the PG pin require an external pull-up resistor?
Yes. PG is an open-drain output and must be pulled up to a valid logic-high voltage (e.g., VOUT or VCC) using a 10kΩ–100kΩ resistor. Without pull-up, PG remains floating and cannot assert power-good status to downstream logic or sequencers.
How is current sharing implemented across multiple MPQ4360 devices?
Parallel operation uses the ICS pin: tie all ICS pins together and connect the common node to VCC (for single-phase) or to a shared current-sense resistor (for multi-phase). SYNCIN and SYNCO pins coordinate phase alignment, while MODE pins must be configured identically across all units.
What thermal derating applies above 25°C ambient?
With θJA = 44°C/W on standard JEDEC board, maximum continuous power drops linearly: at TA = 70°C, PD(MAX) = (150°C − 70°C)/44°C/W ≈ 1.82W. Derated output current is ~4.2A at 12V input, assuming 90% efficiency - consult thermal simulation for actual PCB layout.
MPQ4360GRE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 20-PowerVFQFN
- 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):
- 3.3V
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 0.815V
- Voltage - Output (Max):
- 38V
- Current - Output:
- 6A
- Frequency - Switching:
- 350kHz ~ 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:
- 20-QFN (4x4)
MPQ4360GRE-AEC1-Z FAQ
1.How can I place an order for MPQ4360GRE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4360GRE-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 MPQ4360GRE-AEC1-Z reliable?
The price and inventory of MPQ4360GRE-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 MPQ4360GRE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4360GRE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4360GRE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4360GRE-AEC1-Z?
MPQ4360GRE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4360GRE-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 MPQ4360GRE-AEC1-Z?
For technical support, including MPQ4360GRE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4360GRE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4360GRE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4360GRE-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 MPQ4360GRE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4360GRE-AEC1-Z?
All MPQ4360GRE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4360GRE-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 MPQ4360GRE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4360GRE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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