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Monolithic Power Systems Inc. MPQ4430GLE-AEC1-Z
- Part No.:
- MPQ4430GLE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-VQFN
- Datasheet:
-
MPQ4430GLE-AEC1-Z.pdf
- Description:
- IC REG 3.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,354
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Product details
Overview
MPQ4430GLE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter with integrated 90mΩ high-side and 40mΩ low-side MOSFETs, delivering up to 3.5A output current across a 3.3V–36V input range. It features programmable 350kHz–2.5MHz switching frequency, 10μA sleep-mode quiescent current, and advanced asynchronous mode (AAM) for automotive battery-powered systems requiring cold-crank support and CISPR 25 Class 5 EMI compliance.
For engineers reviewing the MPQ4430GLE-AEC1-Z datasheet, MPQ4430GLE-AEC1-Z pinout, MPQ4430GLE-AEC1-Z application, or MPQ4430GLE-AEC1-Z equivalent, key selection criteria include its wettable flank QFN-16 package for automated optical inspection, valley-current OCP with hiccup protection, low-dropout mode for automotive start-stop, and PG indicator with ±10% output voltage monitoring.
Technical Context
The MPQ4430GLE-AEC1-Z implements current-mode PWM control with internal error amplifier and valley-current sensing for fast transient response and precise overcurrent protection. Its dual-mode operation-selectable forced CCM or AAM-is controlled via the SYNC pin prior to startup, enabling deterministic ripple at full load or ultra-low IQ (<10μA) at light load.
It integrates a bootstrap driver (BST), internal 5V VCC regulator, and separate AGND/PGND planes to isolate analog and power return paths. The 80ns minimum on-time supports high VIN/VOUT ratios (e.g., 24V→3.3V at 2.2MHz), while BIAS pin connection enables efficiency optimization in high-input applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.3V to 36V - supports full automotive battery range including cold-crank (4.5V) and load-dump (40V abs max). |
| Output Current | 3.5A continuous - sustained at full load with thermal shutdown at 170°C and 20°C hysteresis. |
| Quiescent Current | 10μA in sleep mode - enables >1-year battery standby in always-on automotive modules. |
| Switching Frequency | 350kHz to 2.5MHz - programmable via FREQ resistor or external SYNC clock for EMI tuning and layout optimization. |
| Feedback Reference | 800mV ±2% - enables precision output regulation; fixed versions (e.g., 3.8V, 5V) route FB directly to VOUT. |
| Power Good Threshold | ±10% window (85–95% rising / 105–115% falling) - provides robust output monitoring for system sequencing. |
| Thermal Resistance | θJA = 43°C/W on EV4430-L-00A PCB - validates 3.5A operation without forced air in compact automotive enclosures. |
Pinout & Package
MPQ4430GLE-AEC1-Z is housed in a wettable flank QFN-16 (3mm × 4mm) package with exposed thermal pad, supporting automated optical solder-joint inspection and enhanced thermal performance (θJC = 5°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PHASE | Synchronization phase select | Configures in-phase or 180° out-of-phase sync relative to external clock; tie to GND if unused. |
| 2 VIN | Main input supply | Accepts 3.3V–36V; requires local ceramic decoupling to suppress switching noise. |
| 3,10 SW | Switch node | High dv/dt node connecting internal HS/LS MOSFETs; critical for EMI layout and inductor placement. |
| 4,9 PGND | Power ground | Low-impedance return path for power stage; must be connected via multiple vias to inner ground plane. |
| 5 EN | Enable control | Active-high logic (1.05V threshold); supports system-level power sequencing and deep-sleep entry. |
| 6 SYNC | Frequency sync & mode select | Enables external clock sync (350kHz–2.5MHz) and selects CCM (high) or AAM (low/floating) at startup. |
| 7 PG | Power good open-drain output | Signals VOUT within ±10%; requires external pull-up for MCU reset or enable chain coordination. |
| 8 BIAS | External bias supply | Connect to 5–18V rail to reduce internal dissipation and improve efficiency above 12V VIN. |
| 11 BST | Bootstrap supply | Drives HS gate; requires 0.1μF ceramic capacitor between BST and SW for reliable high-side turn-on. |
| 12 VCC | Internal bias regulator output | 5V regulated supply; requires ≥1μF local decoupling for stable gate drive and control logic. |
| 13 AGND | Analog ground reference | Separate ground for FB, SS, COMP; must be star-connected to PGND at single point to avoid noise coupling. |
| 14 SS | Soft-start timing | 10μA current source charges external capacitor; sets inrush current limit and startup time (e.g., 2.2nF = 2.2ms). |
| 15 FB | Feedback input | 800mV reference; for fixed-output variants (e.g., MPQ4430GLE-38-AEC1-Z), connect directly to VOUT. |
| 16 FREQ | Frequency programming | Resistor-to-GND sets fSW: 180kΩ = 475kHz, 82kΩ = 1MHz, 27kΩ = 2.5MHz (typical). |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-16 | Enables AOI-compatible solder joint inspection for automotive zero-defect manufacturing requirements. |
| AEC-Q100 Grade 1 qualification | Validated for -40°C to +125°C junction operation, meeting automotive reliability and stress-test standards. |
| Advanced Asynchronous Mode (AAM) | Reduces light-load IQ to 10μA by dynamically scaling switching frequency and entering pulse-skipping sleep. |
| Valley-current OCP with hiccup | Detects inductor current at LS-FET turn-off; triggers foldback and hiccup restart to limit fault energy during short circuits. |
| Low-dropout mode | Maintains regulation down to VIN ≈ VOUT + 0.5V (e.g., 4.5V→3.3V), critical for automotive cold-crank conditions. |
| CISPR 25 Class 5 compliant | Meets stringent automotive radiated/conducted EMI limits up to 1GHz with standard EMI filter design. |
Applications
| ADAS Camera Module Power | Automotive Infotainment SoC Core Rail |
|---|---|
|
Use Scenario: Powering 3.3V image sensor and ISP in rear-view camera under stop-start cycling and engine cranking. IC Role / Device Role / Timing Role: Primary buck regulator supplying clean, sequenced 3.3V with PG confirmation before sensor initialization. Use Value: Low 10μA sleep IQ extends battery life during vehicle off-state; 80ns min on-time enables 24V→3.3V conversion at 2.2MHz for compact filtering. |
Use Scenario: Generating 1.1V core voltage for ARM-based infotainment processor with dynamic DVFS and rapid load transients. IC Role / Device Role / Timing Role: High-efficiency synchronous buck with fast current-mode loop response to track CPU load steps <1μs. Use Value: Valley-current OCP prevents inductor saturation during burst-mode CPU loads; PG signal synchronizes SoC reset release. |
| Telematics Control Unit (TCU) Backup Rail | Automotive Gateway ECU Auxiliary Supply |
|
Use Scenario: Providing always-on 5V rail for GNSS module and RTC during ignition-off, powered by 12V battery. IC Role / Device Role / Timing Role: Fixed 5V output buck with ultra-low IQ and cold-crank dropout recovery. Use Value: 1μA shutdown current minimizes parasitic drain; low-dropout mode sustains 5V output down to 5.8V input during cranking. |
Use Scenario: Generating isolated 3.3V supply for CAN FD transceivers and Ethernet PHY in multi-protocol gateway. IC Role / Device Role / Timing Role: EMI-optimized buck with SYNC pin synchronized to system clock to avoid beat frequencies. Use Value: CISPR 25 Class 5 compliance eliminates need for external EMI filters; wettable flank ensures IPC-A-610 Class 3 solder quality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4433GLE-AEC1-Z | Higher 5A output current; identical pinout and feature set; shares same QFN-16 wettable flank package. | Required where peak load exceeds 3.5A (e.g., multi-core domain controllers); same thermal footprint but higher current capability. | Select when future-proofing for higher load growth or parallel operation; no layout change needed. |
| TPS54360BQPWPRQ1 | 4.5V–60V input; 3.5A; non-synchronous (external diode); 145μA IQ; no AAM or wettable flank. | Suitable for cost-sensitive industrial applications; lacks automotive-grade EMI performance and cold-crank support. | Choose only if input exceeds 36V or AEC-Q100 is not required; expect higher board area and thermal overhead. |
Compared with MPQ4430GLE-AEC1-Z, MPQ4433GLE-AEC1-Z offers headroom for higher current without redesign, while TPS54360BQPWPRQ1 trades automotive compliance and light-load efficiency for wider VIN range and lower cost in non-automotive use cases.
Availability
MPQ4430GLE-AEC1-Z is available at Aetrix Electronics and suitable for automotive ADAS, infotainment, telematics, and gateway ECUs requiring stable component supply with AEC-Q100 traceability and long-term production support.
Supply support for MPQ4430GLE-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 analog and power ICs, with focus on energy-efficient DC/DC conversion and motor control solutions.
The MPQ4430 product line delivers AEC-Q100 qualified, high-voltage synchronous buck regulators optimized for automotive subsystems demanding ultra-low quiescent current, EMI robustness, and cold-crank resilience.
FAQ
What is the purpose of the BIAS pin on MPQ4430GLE-AEC1-Z?
The BIAS pin accepts an external 5V–18V supply to power the internal gate drivers and control circuitry, reducing power dissipation in the IC and improving overall efficiency-especially beneficial when VIN exceeds 12V. Leaving BIAS floating or grounded disables this feature and reverts to internal VCC regulation.
How does the MPQ4430GLE-AEC1-Z achieve CISPR 25 Class 5 compliance?
It achieves CISPR 25 Class 5 compliance through integrated features including programmable switching frequency (to avoid sensitive bands), optimized internal gate drivers with controlled slew rates, and a layout-friendly pinout that minimizes high-di/dt loops. Test data confirms compliance using the reference EMI filter in Figure 17 of the datasheet.
Can MPQ4430GLE-AEC1-Z operate with a 3.3V input?
Yes-the absolute minimum input voltage is 3.3V per datasheet specifications. However, at 3.3V input and 3.3V output, operation relies entirely on low-dropout mode with reduced duty cycle headroom; efficiency drops significantly, and thermal margin must be verified for 3.5A loads.
What is the function of the PHASE pin?
The PHASE pin selects synchronization phase relative to the external SYNC clock: driven high for in-phase operation, low for 180° out-of-phase. This enables interleaving with other converters to reduce input/output ripple. If unused, it must be tied to GND to prevent floating node issues.
Does MPQ4430GLE-AEC1-Z support adjustable output voltage?
No-MPQ4430GLE-AEC1-Z is a fixed-output variant with internal feedback divider. Adjustable versions (e.g., MPQ4430GL-AEC1-Z) require external resistor network on FB. For fixed 3.8V or 5V outputs, use MPQ4430GLE-38-AEC1-Z or MPQ4430GLE-5-AEC1-Z respectively.
How is soft-start configured on this device?
Soft-start is configured by connecting an external capacitor from SS pin to AGND. The IC sources a precise 10μA current into this capacitor, generating a linear ramp on SS voltage that scales the FB reference during startup. A 2.2nF capacitor yields ~2.2ms soft-start time; floating SS enables internal 0.7ms default.
What thermal derating applies at 125°C ambient?
At TA = 125°C, maximum continuous output current is limited by thermal design. With θJA = 43°C/W on the EV4430-L-00A board, PD(MAX) = (125°C – 125°C)/43 = 0W-so full 3.5A operation requires heatsinking or airflow. Derated current at 125°C ambient is ~1.8A with no airflow and standard 2oz copper.
MPQ4430GLE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- *
- Package/Case:
- 16-VQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 16-QFN (3x4)
MPQ4430GLE-AEC1-Z FAQ
1.How can I place an order for MPQ4430GLE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4430GLE-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 MPQ4430GLE-AEC1-Z reliable?
The price and inventory of MPQ4430GLE-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 MPQ4430GLE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4430GLE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4430GLE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4430GLE-AEC1-Z?
MPQ4430GLE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4430GLE-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 MPQ4430GLE-AEC1-Z?
For technical support, including MPQ4430GLE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4430GLE-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4430GLE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4430GLE-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 MPQ4430GLE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4430GLE-AEC1-Z?
All MPQ4430GLE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4430GLE-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 MPQ4430GLE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4430GLE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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