My Inquiry
My Account
Monolithic Power Systems Inc. MPQ4317GRE-5-AEC1-Z
- Part No.:
- MPQ4317GRE-5-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 20-PowerVFQFN
- Datasheet:
-
MPQ4317GRE-5-AEC1-Z.pdf
- Description:
- IC REG BUCK ADJ 7A 20QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPQ4317GRE-5-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified synchronous step-down converter delivering 5V fixed output at up to 7A continuous current, with 3.3V–45V input range, 1.7μA shutdown quiescent current, and frequency spread spectrum (FSS) for low EMI compliance in automotive infotainment and ADAS power rails.
For engineers reviewing the MPQ4317GRE-5-AEC1-Z datasheet, MPQ4317GRE-5-AEC1-Z pinout, MPQ4317GRE-5-AEC1-Z application, or MPQ4317GRE-5-AEC1-Z equivalent, key selection criteria include its wettable-flank QFN-20 package, AAM/FCCM mode selectability, 470kHz–1MHz configurable switching frequency, and integrated 48mΩ/20mΩ MOSFETs enabling high-efficiency operation under cold-crank and light-load conditions.
Technical Context
The MPQ4317GRE-5-AEC1-Z implements current-mode control with programmable switching frequency (350kHz–1000kHz) and supports external synchronization via SYNCIN with 180° out-of-phase SYNCO output. Its advanced asynchronous modulation (AAM) dynamically reduces switching frequency under light load to minimize gate driver and switching losses.
It integrates high-side (48mΩ) and low-side (20mΩ) MOSFETs, features a 0.815V feedback reference, 100ns minimum on-time, and low-dropout mode for automotive cold-crank support. Thermal shutdown (170°C) and hiccup-mode over-current protection ensure fault-tolerant operation in harsh environments.
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 (40V+). |
| Output Voltage | Fixed 5.0V ±2% - factory-trimmed for precision; eliminates external resistor divider for simplified layout. |
| Continuous Output Current | 7A - sustained delivery with thermal derating per θJA = 44°C/W (QFN-20 on 4-layer PCB). |
| Quiescent Current | 1.7μA in shutdown - enables always-on systems with ultra-low standby power consumption. |
| Switching Frequency | Configurable 350kHz–1000kHz - adjustable via FREQ pin resistor; supports CISPR25 Class 5 EMI compliance with FSS. |
| Protection Features | OCP (hiccup), thermal shutdown (170°C), UVLO (3.0V rising), PG open-drain flag - ensures robust system-level reliability. |
| Package | QFN-20 (4mm × 4mm) with wettable flanks - enables automated optical inspection (AOI) and improves solder joint reliability in automotive reflow. |
Pinout & Package
MPQ4317GRE-5-AEC1-Z uses a thermally enhanced QFN-20 (4mm × 4mm) package with wettable flanks for automotive-grade solder joint inspection and reliability. Exposed thermal pad (PGND-connected) must be soldered to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 MODE | AAM/FCCM selection | Pull high for forced CCM (stable ripple); pull low for AAM (ultra-low IQ at light load); floating prohibited. |
| 2 SYNCIN | External clock input | Accepts 350kHz–1000kHz sync signal; requires ≤51kΩ pulldown if unused to prevent floating. |
| 3,12 VIN | Main input supply | Connects to 3.3V–45V source; decoupling capacitor required near pin to suppress switching noise. |
| 4,5,10,11 PGND | Power ground return | Low-impedance path for high di/dt switch currents; must connect directly to thermal pad and PCB ground plane. |
| 6 BST | Bootstrap supply | Connect 0.1μF ceramic capacitor between BST and SW to drive high-side MOSFET gate. |
| 7,8 SW | Switch node | Drives external inductor; high dv/dt node requiring short, low-inductance routing to minimize EMI. |
| 9 EN | Enable control | Logic-high (>1.0V) enables regulator; <0.85V disables with 190mV hysteresis for noise immunity. |
| 13 SYNCO | Synchronization output | 180° out-of-phase clock; float when unused; supports multi-phase interleaving with other MPQ43xx devices. |
| 14 PG | Power good indicator | Open-drain output; pulled high when VOUT is within 95–105% of 5.0V; requires external pull-up. |
| 15 NC | No connect | Internally unconnected; must remain floating per datasheet. |
| 16 VCC | Bias supply | Internal 4.9V LDO output; decouple with 1μF ceramic cap to AGND for stable gate drive. |
| 17 AGND | Analog ground | Reference for FB, SS, MODE; separate from PGND but tied at single point near IC for noise isolation. |
| 18 FB | Feedback input | Connected directly to 5V output (fixed version); 0.815V internal reference enables precise regulation. |
| 19 SS | Soft-start timing | Capacitor to GND sets startup ramp time; 13μA current source limits inrush current during power-up. |
| 20 FREQ | Frequency programming | Resistor to GND sets fSW (e.g., 62kΩ → 470kHz); enables EMI optimization across operating conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Frequency Spread Spectrum (FSS) | Reduces peak radiated/conducted EMI by spreading switching energy across 20–30kHz bandwidth - meets CISPR25 Class 5 without added filters. |
| Wettable Flank QFN-20 | Enables AOI-compatible solder joint inspection and improves mechanical reliability under thermal cycling in automotive applications. |
| Advanced Asynchronous Modulation (AAM) | Dynamically scales switching frequency below 100mA load to reduce IQ to 18μA - extends battery life in always-on modules. |
| 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). |
| Integrated 48mΩ/20mΩ MOSFETs | Eliminates external power switches; achieves >92% efficiency at 5V/3A (12VIN) and >85% at 5V/7A (12VIN) in FCCM mode. |
Applications
| Automotive Infotainment Head Unit | ADAS Camera Module Power |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in centralized head unit with wide input voltage variation. IC Role / Device Role / Timing Role: Primary 5V buck regulator supplying core logic and memory subsystems. Use Value: AEC-Q100 Grade 1 qualification and 170°C thermal shutdown ensure uninterrupted operation during engine-off battery drain or hot ambient conditions. |
Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view camera with strict EMI limits. IC Role / Device Role / Timing Role: EMI-optimized 5V rail generator with FSS and symmetric VIN routing for CISPR25 Class 5 compliance. Use Value: 100ns minimum on-time enables stable 5V output even at 45V input, supporting long cable harnesses without overvoltage risk. |
| Automotive Digital Cluster | Industrial Telematics Gateway |
|
Use Scenario: Delivers clean 5V power to TFT-LCD controller, microcontroller, and CAN transceivers in instrument cluster. IC Role / Device Role / Timing Role: Fixed-output buck converter with PG signal for system-level power sequencing and fault reporting. Use Value: Open-drain PG output (95–105% window) enables reliable boot validation and watchdog reset coordination in safety-critical displays. |
Use Scenario: Powers LTE modem, GNSS receiver, and secure MCU in vehicle-to-cloud telematics units deployed in commercial fleets. IC Role / Device Role / Timing Role: High-reliability 5V DC-DC stage tolerant to 45V load dump transients and -40°C to +125°C junction temperature. Use Value: 45V absolute max VIN rating and AEC-Q100 qualification allow direct connection to vehicle battery without pre-regulator, reducing BOM cost and footprint. |
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-Z | 6A output current; identical pinout, package, and feature set except lower current limit. | Suitable for lower-power clusters or gateways where 7A margin is unnecessary. | Select when thermal budget or cost sensitivity favors reduced current capability without redesign. |
| TPS54560QDGQRQ1 | 60V max VIN, 5A output, no FSS, different pinout (SOIC-8), higher IQ (18μA active vs. 9.5mA FCCM). | Lacks wettable flank and CISPR25-optimized FSS; requires external MOSFETs for >5A loads. | Choose only if 60V VIN tolerance is mandatory and EMI filtering can be added externally. |
Compared with MPQ4317GRE-5-AEC1-Z, the MPQ4316 offers identical integration and automotive qualification at lower current, while the TPS54560Q1 trades FSS and wettable flanks for wider VIN range and legacy SOIC packaging-making the MPQ4317 optimal for EMI-constrained, high-current automotive modules.
Availability
MPQ4317GRE-5-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital instrument clusters requiring stable component supply with AEC-Q100 Grade 1 assurance and full production traceability.
Supply support for MPQ4317GRE-5-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MPQ43xx family targets automotive power conversion, delivering high-efficiency, low-EMI, AEC-Q100-qualified buck regulators with integrated MOSFETs and advanced features like FSS and wettable flanks for next-generation vehicle electronics.
FAQ
What is the difference between MPQ4317GRE-5-AEC1-Z and MPQ4317GRE-AEC1-Z?
The "-5" suffix denotes the fixed 5.0V output version, eliminating the need for external feedback resistors. The base part MPQ4317GRE-AEC1-Z is adjustable (0.815V reference) and requires an external resistor divider to set VOUT. Both share identical package, pinout, and AEC-Q100 qualification.
Does MPQ4317GRE-5-AEC1-Z require an external bootstrap capacitor?
Yes - a 0.1μF ceramic capacitor must be placed between BST and SW pins to provide gate drive voltage for the internal high-side MOSFET. This capacitor must be located adjacent to the IC with minimal trace length to maintain stability and efficiency.
Can MPQ4317GRE-5-AEC1-Z operate with input voltage below 3.3V?
No - the absolute minimum operating VIN is 3.3V per datasheet specifications. Below this, the device enters undervoltage lockout (UVLO) with 3.0V rising threshold and 2.7V falling threshold, preventing unreliable operation or damage.
How is the power good (PG) signal used in system design?
PG is an open-drain output that pulls low when VOUT deviates beyond ±5% of 5.0V. It requires an external pull-up resistor (typically 10kΩ to 5V or VCC) and is used for system power sequencing, microcontroller reset assertion, or fault logging in automotive ECUs.
Is the MPQ4317GRE-5-AEC1-Z compatible with lead-free and RoHS-compliant assembly processes?
Yes - it is fully lead-free, halogen-free, and RoHS-compliant. The QFN-20 package supports standard Pb-free reflow profiles (JEDEC J-STD-020), and the wettable flank design ensures compatibility with automated optical inspection in high-reliability automotive manufacturing lines.
What thermal performance can be expected on a standard 4-layer PCB?
With the recommended 9cm×9cm, 2oz copper, 4-layer evaluation board (EVB), θJA is 23°C/W. At 7A output and 12V input, typical case temperature rise is ~45°C above ambient - well within the 150°C max junction rating when ambient remains ≤105°C.
Does the FREQ pin support dynamic frequency adjustment during operation?
No - the FREQ pin resistor sets a fixed switching frequency at power-up. While the value can be changed externally, doing so mid-operation may cause transient instability or output droop; frequency changes should occur only during startup or controlled power cycles.
MPQ4317GRE-5-AEC1-Z 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-Z FAQ
1.How can I place an order for MPQ4317GRE-5-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-Z reliable?
The price and inventory of MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4317GRE-5-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4317GRE-5-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4317GRE-5-AEC1-Z?
MPQ4317GRE-5-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-Z?
For technical support, including MPQ4317GRE-5-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4317GRE-5-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4317GRE-5-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4317GRE-5-AEC1-Z?
All MPQ4317GRE-5-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4317GRE-5-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 MPQ4317GRE-5-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4317GRE-5-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPQ4317GRE-5-AEC1-Z Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
