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Monolithic Power Systems Inc. MPQ4316GRE-5-AEC1-P
- Part No.:
- MPQ4316GRE-5-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 20-PowerVFQFN
- Datasheet:
-
MPQ4316GRE-5-AEC1-P.pdf
- Description:
- IC REG BUCK 5V 6A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
MPQ4316GRE-5-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified synchronous step-down DC/DC converter delivering up to 6A continuous output at fixed 5V, with 3.3V–45V input range, 1.7μA shutdown current, and integrated 48mΩ high-side / 20mΩ low-side MOSFETs. It supports automotive cold-crank operation via low-dropout mode and integrates frequency spread spectrum (FSS) for CISPR25 Class 5 EMI compliance in infotainment and ADAS power rails.
For engineers reviewing the MPQ4316GRE-5-AEC1-P datasheet, MPQ4316GRE-5-AEC1-P pinout, MPQ4316GRE-5-AEC1-P application, or MPQ4316GRE-5-AEC1-P equivalent, key selection criteria include its AEC-Q100 qualification, 5V fixed output accuracy (±2%), 470kHz typical switching frequency with external synchronization capability, and wettable flank QFN-20 package for automated optical inspection in automotive PCB assembly.
Technical Context
The MPQ4316GRE-5-AEC1-P implements current-mode control with selectable Advanced Asynchronous Mode (AAM) or Forced Continuous Conduction Mode (FCCM), enabling optimized light-load efficiency or consistent ripple performance. Its internal gate drivers support bootstrap high-side drive and feature hiccup-mode over-current protection with 10–16A HS current limit and 8–12A LS valley current limit.
Thermal shutdown triggers at 170°C with 20°C hysteresis, and the device includes frequency foldback during start-up to prevent inductor current runaway. The 100ns minimum on-time and 80ns minimum off-time enable high VIN/VOUT ratios, while symmetric VIN routing and FSS reduce conducted and radiated EMI without external filters.
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 ±2% - factory-trimmed for precision; no external feedback resistors required. |
| Continuous Output Current | 6A - sustained delivery with thermal derating per θJA = 44°C/W on standard 4-layer PCB. |
| Quiescent Current | 18μA in sleep mode - enables always-on systems with minimal battery drain. |
| Switching Frequency | Configurable 350–1000kHz - set via FREQ pin resistor or synchronized externally; 470kHz typical for optimal efficiency/EMI trade-off. |
| EMI Performance | CISPR25 Class 5 compliant - achieved via integrated frequency spread spectrum and symmetric VIN layout. |
| Protection Features | Hiccup OCP, thermal shutdown (170°C), UVLO (3.0V rising), PG open-drain flag - ensures robust fault handling in harsh environments. |
Pinout & Package
MPQ4316GRE-5-AEC1-P is housed in a wettable flank QFN-20 (4mm × 4mm) package with exposed thermal pad, supporting automated optical inspection and enhanced thermal dissipation (θJC = 9°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | AAM/FCCM selection | Pull high for forced CCM (low ripple); pull low for AAM (high light-load efficiency); must not float. |
| 2 SYNCIN | External clock input | Accepts 350–1000kHz sync signal; enables multi-phase operation and EMI reduction via deterministic timing. |
| 3,12 VIN | Main input supply | Connects to 3.3–45V source; requires local ceramic decoupling close to pins to suppress switching noise. |
| 4,5,10,11 PGND | Power ground return | Low-impedance path for high di/dt switch currents; must be tied to thermal pad and separated from AGND. |
| 6 BST | Bootstrap supply | Drives high-side MOSFET gate; requires 0.1μF ceramic capacitor between BST and SW for reliable bootstrapping. |
| 7,8 SW | Switch node | Connects to inductor; high dv/dt node requiring minimized trace area and guard ring for EMI control. |
| 9 EN | Enable control | Active-high logic; 1V threshold enables, 0.85V disables - supports microcontroller-controlled power sequencing. |
| 13 SYNCO | Synchronized clock output | 180° out-of-phase with internal oscillator or inverted SYNCIN - enables interleaved multi-converter designs. |
| 14 PG | Power good indicator | Open-drain output active when VOUT is within 95–105% of 5V; requires external pull-up for system monitoring. |
| 15 NC | No connect | Internally unconnected; must remain floating - no routing or soldering required. |
| 16 VCC | Bias supply | Internal 4.9V regulator output; requires 4.7μF ceramic capacitor to GND for stable gate drive. |
| 17 AGND | Analog ground | Reference for FB, SS, MODE; must be star-connected to PGND under IC to minimize noise coupling. |
| 18 FB | Feedback input | Shorted to VOUT for fixed 5V version; 0.815V reference enables precise regulation without external divider. |
| 19 SS | Soft-start control | Capacitor-to-GND sets ramp time; 13μA internal current limits inrush current during power-up. |
| 20 FREQ | Frequency configuration | Resistor-to-GND sets fSW (e.g., 62kΩ → 470kHz); enables tuning for layout or EMI constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-20 | Enables automated optical inspection (AOI) of solder joints - critical for zero-defect automotive manufacturing. |
| Frequency spread spectrum (FSS) | Reduces peak EMI by >10dB across 150kHz–108MHz - eliminates need for external EMI filters in CISPR25 Class 5 systems. |
| Low-dropout mode | Maintains regulation down to VIN = 5.5V at 6A - sustains operation during automotive cold-crank events without brownout. |
| 100ns minimum on-time | Supports 5V output from 45V input at 470kHz (D ≈ 10.6%) - enables single-stage conversion in high-ratio applications. |
| Out-of-phase SYNCO output | Allows seamless interleaving with second MPQ4316 or compatible converter - cuts input/output ripple by up to 50%. |
| AEC-Q100 Grade 1 qualification | Rated for -40°C to +125°C junction temperature - validated for engine bay and dashboard-mounted automotive electronics. |
Applications
| Automotive Infotainment Head Unit | ADAS Camera Power Supply |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in centralized head unit with 12V battery input and strict EMI limits. IC Role / Device Role / Timing Role: Primary 5V rail generator with FSS-enabled low-noise operation and PG monitoring for safe boot sequence. Use Value: Eliminates external EMI filter components while meeting CISPR25 Class 5 radiated emissions - reduces BOM cost and board area by 12mm². |
Use Scenario: Supplies image sensor and ISP in rear-view or surround-view camera module exposed to wide temperature swings. IC Role / Device Role / Timing Role: High-reliability 5V source with thermal shutdown and cold-crank support for uninterrupted video streaming. Use Value: Maintains 5V regulation during 6V battery dips (cold crank) and survives 42V load dumps - extends field failure MTBF by 3.2× vs. non-AEC-Q100 parts. |
| Digital Instrument Cluster | Automotive Telematics Control Unit |
|
Use Scenario: Generates clean 5V for TFT LCD controller, microcontroller, and CAN transceiver in driver-facing cluster. IC Role / Device Role / Timing Role: Fixed-output buck converter with PG signal for MCU reset coordination and soft-start for flicker-free display wake-up. Use Value: 18μA sleep current enables <10μA system standby - extends parking mode battery life to >30 days without recharge. |
Use Scenario: Powers LTE modem, GNSS receiver, and secure element in telematics unit requiring always-on connectivity. IC Role / Device Role / Timing Role: Primary 5V supply with SYNCIN capability for phase-aligned operation with other power rails in multi-rail system. Use Value: SYNCO output enables interleaved switching with companion 3.3V rail - reduces input capacitor RMS current by 40%, lowering thermal stress. |
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 |
|---|---|---|---|
| MPQ4315GRE-5-AEC1-P | 5A output rating, identical pinout and features except lower current capability and slightly higher RDS(on) (52mΩ HS / 22mΩ LS). | Suitable for lower-power clusters or telematics modules where 5A suffices and thermal margin is acceptable. | Select when system peak load ≤5A and cost optimization is prioritized over headroom. |
| TPS54560QDGQRQ1 | 5.5A max, 3.5–60V input, no integrated FSS, requires external compensation, larger SOIC-8 package. | Lacks wettable flank and CISPR25 Class 5 pre-certification - demands additional EMI filtering and AOI process validation. | Choose only if legacy design reuse or TI ecosystem alignment outweighs AEC-Q100 robustness and EMI integration benefits. |
Compared with MPQ4315GRE-5-AEC1-P, the MPQ4316GRE-5-AEC1-P provides 1A higher current headroom and tighter RDS(on), enabling smaller thermal solution; versus TPS54560QDGQRQ1, it delivers drop-in EMI compliance and AOI-ready packaging - reducing qualification time by ~6 weeks.
Availability
MPQ4316GRE-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 production support.
Supply support for MPQ4316GRE-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 core expertise in DC/DC conversion, motor drivers, and LED lighting controllers.
The MPQ4316 belongs to MPS's automotive-grade synchronous buck converter product line, designed specifically for demanding vehicle subsystems requiring AEC-Q100 qualification, ultra-low quiescent current, and integrated EMI mitigation.
FAQ
What is the exact output voltage tolerance for MPQ4316GRE-5-AEC1-P?
The MPQ4316GRE-5-AEC1-P delivers a factory-trimmed 5.0V output with ±2% accuracy over temperature (-40°C to +125°C) and line/load conditions, verified per electrical characteristics table (VOUT = 4850–5150mV at TJ = 25°C, 4850–5150mV over full range).
Does this part require external feedback resistors for the 5V output?
No. The MPQ4316GRE-5-AEC1-P is the fixed 5V variant: the FB pin is internally connected to the output, eliminating external resistors. For adjustable versions (e.g., MPQ4316GRE-AEC1-P), a resistor divider would be required.
Can MPQ4316GRE-5-AEC1-P synchronize to an external clock while operating in FCCM mode?
Yes. The SYNCIN pin accepts 350–1000kHz external clocks regardless of MODE pin state. In FCCM mode, synchronization maintains constant frequency and phase alignment - essential for interleaved multi-phase designs.
What is the thermal performance difference between wettable flank and standard QFN packages?
The wettable flank variant (GRE) maintains identical θJA (44°C/W) and θJC (9°C/W) as standard QFN but adds solderable side walls for AOI. Thermal performance is unchanged; the benefit is manufacturing yield assurance, not thermal enhancement.
Is the PG (power good) signal active-high or open-drain?
The PG pin is open-drain with no internal pull-up. It pulls low when VOUT falls outside 95–105% of 5V and floats otherwise. An external pull-up resistor (typically 10–100kΩ to 3.3V or 5V) is mandatory for proper logic-level signaling.
How does frequency foldback improve start-up reliability?
During start-up, frequency foldback reduces switching frequency under heavy load or low VIN, limiting peak inductor current and preventing saturation. This avoids current runaway before regulation is established - critical for cold-crank scenarios.
What is the maximum recommended PCB copper area for the thermal pad?
MPS recommends a 25mm² (5mm × 5mm) thermal pad with 4–6 thermal vias (0.3mm diameter, 1mm pitch) to inner ground plane. This achieves the rated θJA = 44°C/W on JEDEC-standard 4-layer board per datasheet Figure 14.
MPQ4316GRE-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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.3V
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 6A
- Frequency - Switching:
- 350kHz ~ 1MHz
- 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)
MPQ4316GRE-5-AEC1-P FAQ
1.How can I place an order for MPQ4316GRE-5-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4316GRE-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 MPQ4316GRE-5-AEC1-P reliable?
The price and inventory of MPQ4316GRE-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 MPQ4316GRE-5-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4316GRE-5-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4316GRE-5-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4316GRE-5-AEC1-P?
MPQ4316GRE-5-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4316GRE-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 MPQ4316GRE-5-AEC1-P?
For technical support, including MPQ4316GRE-5-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4316GRE-5-AEC1-P requirements.
6.How does Aetrix verify that MPQ4316GRE-5-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4316GRE-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 MPQ4316GRE-5-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4316GRE-5-AEC1-P?
All MPQ4316GRE-5-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4316GRE-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 MPQ4316GRE-5-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4316GRE-5-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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