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Monolithic Power Systems Inc. MPQ4317GRE-5-AEC1-P
- Part No.:
- MPQ4317GRE-5-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 20-PowerVFQFN
- Datasheet:
-
MPQ4317GRE-5-AEC1-P.pdf
- Description:
- IC REG BUCK ADJ 7A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:470
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Product details
Overview
MPQ4317GRE-5-AEC1-P from Monolithic Power Systems is a 45V, 7A AEC-Q100 Grade 1 synchronous step-down converter with integrated 48mΩ high-side and 20mΩ low-side MOSFETs, frequency spread spectrum (FSS), and 1.7μA shutdown current-designed for automotive infotainment power rails requiring stable 5V output under cold-crank conditions.
For engineers reviewing the MPQ4317GRE-5-AEC1-P datasheet, MPQ4317GRE-5-AEC1-P pinout, MPQ4317GRE-5-AEC1-P application, or MPQ4317GRE-5-AEC1-P equivalent, this device delivers configurable 350–1000kHz switching, out-of-phase SYNC output, low-dropout mode, and ±1% output voltage accuracy at 5V-critical for ADAS camera modules and cluster display supplies where EMI compliance and thermal robustness are mandatory.
Technical Context
The MPQ4317GRE-5-AEC1-P implements current-mode control with selectable Advanced Asynchronous Modulation (AAM) or Forced Continuous Conduction Mode (FCCM), enabling optimized light-load efficiency or ripple-sensitive operation. Its internal gate drivers support bootstrap high-side drive and feature 100ns minimum on-time for high VIN-to-VOUT ratios.
It integrates frequency foldback during startup to prevent inductor current runaway, thermal shutdown at 170°C with 20°C hysteresis, and a precision 0.815V feedback reference with ±1.5% over temperature-enabling accurate fixed 5V regulation without external resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.3V to 45V - supports full automotive battery range including cold-crank (4.5V) and load-dump (42V) transients. |
| Output Voltage | Fixed 5.0V ±1% - eliminates external feedback divider; enables compact layout for space-constrained ECUs. |
| Continuous Output Current | 7A - sustains full load at TJ ≤ 125°C with standard 4-layer PCB and QFN-20 wettable flank package. |
| Shutdown Quiescent Current | 1.7μA - extends battery life in always-on automotive modules such as telematics and gateway controllers. |
| Switching Frequency Range | 350kHz to 1000kHz - configurable via resistor on FREQ pin; supports CISPR-25 Class 5 EMI compliance with FSS enabled. |
| Thermal Shutdown Threshold | 170°C with 20°C hysteresis - ensures fault-tolerant operation during sustained overload or poor heatsinking. |
| Power Good Accuracy | ±2.5% window (95–105% of VOUT) - provides reliable system-level power sequencing and fault detection. |
Pinout & Package
MPQ4317GRE-5-AEC1-P is housed in a wettable flank QFN-20 (4mm × 4mm) package with exposed thermal pad, rated MSL-1 and qualified to AEC-Q100 Grade 1 (−40°C to +125°C TJ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | AAM/FCCM selection | Pull high for forced CCM (low-noise); pull low for AAM (ultra-low IQ in standby); must not float. |
| 2 SYNCIN | External clock input | Accepts 350–1000kHz sync signal; enables multi-phase synchronization and EMI reduction via clock dithering. |
| 3,12 VIN | Main input supply | Connects to 3.3–45V source; requires local ceramic decoupling to suppress switching noise. |
| 4,5,10,11 PGND | Power ground return | Low-impedance path for high di/dt currents; must be tied directly to thermal pad and input/output caps. |
| 6 BST | Bootstrap supply | Drives high-side MOSFET gate; requires 0.1μF ceramic cap between BST and SW per datasheet guidelines. |
| 7,8 SW | Switch node | Connects to inductor; carries full switching current and high dv/dt-requires minimized trace area and guard ring. |
| 9 EN | Enable control | Logic-compatible input (1.0V rising threshold); supports controlled power-up/down sequencing. |
| 13 SYNCO | Synchronized clock output | 180° out-of-phase with internal oscillator; enables interleaved operation with second MPQ4317 or other converters. |
| 14 PG | Open-drain power good | Indicates VOUT within ±5%; requires external pull-up to valid rail (e.g., VOUT or VCC) for system monitoring. |
| 15 NC | No connect | Internally unconnected; must remain floating-no routing or soldering allowed. |
| 16 VCC | Bias supply | Internal 4.9V regulator output; requires dedicated 1μF ceramic decoupling to PGND near pin. |
| 17 AGND | Analog ground | Reference for FB, SS, MODE; must be star-connected to PGND at single point to avoid noise coupling. |
| 18 FB | Feedback input | Connected directly to 5V output (fixed version); senses 0.815V reference for regulation accuracy. |
| 19 SS | Soft-start timing | 13μA current source charges external capacitor; sets monotonic VOUT ramp time to limit inrush current. |
| 20 FREQ | Frequency programming | Resistor-to-GND sets fSW (e.g., 62kΩ → 470kHz); enables precise EMI tuning across operating conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Frequency Spread Spectrum (FSS) | Reduces peak radiated/conducted EMI by >10dB across 150kHz–1GHz, enabling CISPR-25 Class 5 compliance without added filters. |
| Wettable Flank QFN-20 | Enables automated optical inspection (AOI) of solder joints in automotive production, improving manufacturing yield and field reliability. |
| Low-Dropout Mode | Maintains regulation down to VIN = VOUT + 0.5V (e.g., 5.5V input for 5V output), critical for automotive cold-crank (4.5V battery). |
| Out-of-Phase SYNCO Output | Allows seamless interleaving with second MPQ4317 or compatible converter to halve input/output ripple and reduce capacitor stress. |
| AEC-Q100 Grade 1 Qualification | Validated for −40°C to +125°C junction operation, including HTOL, TC, UHAST, and ESD testing-meets automotive functional safety requirements. |
| 100ns Minimum On-Time | Supports high step-down ratios (e.g., 45V→5V at 470kHz) without pulse-skipping instability or audible noise. |
Applications
| Automotive Infotainment Head Unit | ADAS Camera Module Power |
|---|---|
|
Use Scenario: Powers SoC, DDR memory, and display interface in centralized head units with 12V/24V battery input and strict EMI limits. IC Role / Device Role / Timing Role: Primary 5V buck regulator delivering 7A continuous current with FSS-enabled CISPR-25 Class 5 compliance. Use Value: Eliminates need for external EMI filters, reduces BOM cost by $0.35, and meets OEM EMC test requirements on first pass. |
Use Scenario: Supplies image sensor, ISP, and SerDes in rear-view or surround-view cameras mounted in high-temperature zones. IC Role / Device Role / Timing Role: High-efficiency 5V source with thermal shutdown and low-dropout mode for operation during engine-off battery drain. Use Value: Sustains 5V output down to 4.8V input at 7A, enabling uninterrupted video streaming during cold-crank events. |
| Digital Instrument Cluster | Automotive Gateway Controller |
|
Use Scenario: Generates clean 5V rail for TFT-LCD backlight driver, microcontroller, and CAN transceivers in digital dashboards. IC Role / Device Role / Timing Role: Fixed-output buck converter with PG signal for system power sequencing and fault reporting. Use Value: PG output triggers MCU reset if VOUT deviates >5%, preventing display corruption during transient load steps. |
Use Scenario: Provides always-on 5V supply for low-power MCU, CAN FD PHY, and secure boot circuitry in vehicle domain controllers. IC Role / Device Role / Timing Role: Ultra-low IQ (1.7μA shutdown, 18μA sleep) regulator supporting 10-year battery backup lifetime. Use Value: Reduces annual standby power consumption by 42% vs. legacy 5V LDO solutions, extending telematics battery life. |
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 |
|---|---|---|---|
| MPQ4316GRE-5-AEC1-P | 6A output rating, identical pinout and features except lower current capability and 55mΩ/22mΩ RDS(on). | Suitable for lower-power clusters or gateways with <6A 5V loads; marginally higher conduction loss at full load. | Select when thermal budget is constrained and peak load never exceeds 6A-reduces board temperature rise by ~3°C at 7A. |
| TPS54560QDGQRQ1 | 60V max VIN, 5A output, no FSS or wettable flank; uses external MOSFETs and requires more external components. | Used in industrial 24V systems where AEC-Q100 is not required; lacks automotive-grade qualification and EMI optimization. | Choose only if 60V input tolerance is mandatory and CISPR-25 compliance is handled externally-adds ≥3 components and 25% board area. |
Compared with MPQ4316GRE-5-AEC1-P, the MPQ4317GRE-5-AEC1-P delivers 1A higher continuous current with lower RDS(on), enabling smaller thermal solution; versus TPS54560QDGQRQ1, it integrates MOSFETs, adds FSS, and achieves AEC-Q100 Grade 1 with zero-compromise EMI performance.
Availability
MPQ4317GRE-5-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital instrument clusters requiring stable component supply with full AEC-Q100 traceability and long-term automotive lifecycle support.
Supply support for MPQ4317GRE-5-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MPQ4317 belongs to MPS's automotive-qualified DC/DC converter product line, engineered specifically for harsh automotive environments-emphasizing AEC-Q100 reliability, ultra-low EMI, and cold-crank resilience in infotainment and ADAS subsystems.
FAQ
What is the purpose of the MODE pin on MPQ4317GRE-5-AEC1-P?
The MODE pin selects between Advanced Asynchronous Modulation (AAM) and Forced Continuous Conduction Mode (FCCM). Pulling it low enables AAM for ultra-low quiescent current (18μA) at light loads; pulling it high forces FCCM for consistent switching frequency and reduced output ripple-critical for noise-sensitive analog circuits.
Can MPQ4317GRE-5-AEC1-P operate with input voltage below 3.3V?
No. The absolute minimum input voltage is 3.3V due to internal UVLO thresholds (rising at 3.0V, falling at 2.7V). Below this, the device remains disabled. For sub-3.3V operation, an upstream boost stage or alternative regulator with lower VIN capability is required.
How does the FREQ pin set switching frequency?
A resistor from FREQ to GND sets fSW using the curve in the datasheet: e.g., 62kΩ yields 470kHz, 26.1kΩ yields 1000kHz. The relationship is monotonic but non-linear; values outside 10kΩ–100kΩ may cause instability or out-of-spec operation.
Is external feedback compensation required for the fixed 5V version?
No. The MPQ4317GRE-5-AEC1-P has internal feedback network configured for 5.0V output. The FB pin is internally tied to the output divider; users must connect FB directly to VOUT-no external resistors or compensation components are needed.
What thermal derating applies above 100°C ambient?
With θJA = 44°C/W on standard JEDEC board, maximum continuous output current drops linearly: at TA = 100°C, derated IOUT ≈ 5.2A; at TA = 125°C, derated IOUT ≈ 3.1A. Use θJC = 9°C/W with proper PCB copper pour for higher sustained loads.
Does the PG pin require a pull-up resistor?
Yes. PG is open-drain and requires an external pull-up resistor (typically 10kΩ) to a valid voltage rail (e.g., VOUT or VCC). Without it, the pin cannot assert high state, disabling power-good monitoring and system sequencing functionality.
How is CISPR-25 Class 5 compliance achieved?
Compliance is achieved through integrated Frequency Spread Spectrum (FSS), symmetric VIN layout support, and optimized internal gate drivers-verified on MPS's EVQ4317-R-00A evaluation board with specified EMI filters. Layout adherence to the reference design is mandatory for certification.
MPQ4317GRE-5-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- 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):
- 45V
- Voltage - Output (Min/Fixed):
- 0.815V
- Voltage - Output (Max):
- 42.75V
- Current - Output:
- 7A
- Frequency - Switching:
- 350kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 20-QFN (4x4)
MPQ4317GRE-5-AEC1-P FAQ
1.How can I place an order for MPQ4317GRE-5-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-P reliable?
The price and inventory of MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4317GRE-5-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4317GRE-5-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4317GRE-5-AEC1-P?
MPQ4317GRE-5-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-P?
For technical support, including MPQ4317GRE-5-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4317GRE-5-AEC1-P requirements.
6.How does Aetrix verify that MPQ4317GRE-5-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4317GRE-5-AEC1-P?
All MPQ4317GRE-5-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4317GRE-5-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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