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Monolithic Power Systems Inc. MPQ4430GLE-5-AEC1-Z
- Part No.:
- MPQ4430GLE-5-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-PowerVQFN
- Datasheet:
-
MPQ4430GLE-5-AEC1-Z.pdf
- Description:
- IC REG BUCK 5V 3.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,406
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Product details
Overview
MPQ4430GLE-5-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 continuous output at a fixed 5V (±2.5% accuracy), operating from 3.3V–36V input, and featuring 10μA quiescent current in sleep mode for automotive battery-powered systems.
For engineers reviewing the MPQ4430GLE-5-AEC1-Z datasheet, MPQ4430GLE-5-AEC1-Z pinout, MPQ4430GLE-5-AEC1-Z application, or MPQ4430GLE-5-AEC1-Z equivalent, key selection criteria include its wettable flank QFN-16 package for automated optical inspection, AAM/CCM mode selectability via SYNC pin, 80ns minimum on-time for high-duty-cycle cold-crank operation, and CISPR25 Class 5 EMI compliance in automotive front-end power designs.
Technical Context
The MPQ4430GLE-5-AEC1-Z implements current-mode PWM control with valley-current OCP and hiccup-mode short-circuit protection, enabling fast transient response and robust fault handling in automotive environments. Its internal error amplifier compares FB voltage against a precision 800mV reference to regulate output.
It supports external clock synchronization (350kHz–2.5MHz), selectable in-phase or 180° out-of-phase operation via PHASE pin, and dual-mode operation: forced CCM for low-noise applications or advanced asynchronous mode (AAM) for ultra-high light-load efficiency - both configurable before startup via SYNC pin logic level.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0V ±2.5% (4.875–5.125V) - ensures stable MCU/Sensor rail without external feedback resistors. |
| Max Output Current | 3.5A continuous - sustains full load under worst-case thermal conditions (TJ ≤ 125°C) with QFN-16 package. |
| Input Voltage Range | 3.3V to 36V - accommodates 12V/24V automotive batteries including cold-crank dips down to 3.3V. |
| Quiescent Current | 10μA in sleep mode - extends battery runtime in always-on vehicle modules (e.g., telematics, ADAS sensors). |
| Switching Frequency | Programmable 350kHz–2.5MHz via FREQ pin resistor - enables optimization of size (high-freq) vs. efficiency (mid-freq) and EMI filtering. |
| Thermal Shutdown | 170°C with 20°C hysteresis - provides fail-safe thermal protection while allowing recovery without system reset. |
| EMI Performance | CISPR25 Class 5 compliant (conducted & radiated, 150kHz–1GHz) - meets OEM EMC requirements without added shielding. |
Pinout & Package
MPQ4430GLE-5-AEC1-Z is housed in a wettable flank QFN-16 (3mm × 4mm, 0.5mm pitch) package, optimized for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PHASE | Synchronization phase select | Drives high for in-phase sync with external clock; low for 180° out-of-phase - reduces system-level ripple when paralleling converters. |
| 2 VIN | Main power input | Accepts 3.3V–36V; requires local 10µF ceramic decoupling to suppress switching noise and stabilize control loop. |
| 3,10 SW | Power switch node | Internally connected high-side drain / low-side source node - critical for layout; must minimize loop area with inductor and PGND. |
| 4,9 PGND | Power ground return | Low-impedance path for MOSFET conduction current; requires dedicated copper pour and multiple vias to thermal pad. |
| 5 EN | Enable control | Active-high logic input (1.05V threshold); enables soft-start sequence when pulled above VEN_RISING. |
| 6 SYNC | Mode control & clock sync | Configures CCM (high) or AAM (low/floating) pre-startup; accepts 350kHz–2.5MHz external clock for EMI reduction. |
| 7 PG | Power-good indicator | Open-drain output asserting high when VOUT is within ±10% of 5V - used for sequencing or fault monitoring. |
| 8 BIAS | Efficiency boost supply | Optional 5V–18V external bias reduces internal LDO loss; improves efficiency >15% at high input voltages (e.g., 24V→5V). |
| 11 BST | High-side gate driver supply | Bootstrap capacitor (typically 0.1µF X7R) between BST and SW enables N-channel high-side MOSFET drive. |
| 12 VCC | Internal bias rail | Regulated ~5V supply for control circuitry; requires ≥1µF ceramic decoupling close to pin for stability. |
| 13 AGND | Analog reference ground | Separate ground for FB, SS, and error amplifier - must be star-connected to PGND at single point to avoid noise coupling. |
| 14 SS | Soft-start timing | Capacitor from SS to AGND sets ramp time; internal 10µA current source yields ~0.7ms default if floating. |
| 15 FB | Feedback input | Connected directly to 5V output (fixed version); no resistor divider needed - eliminates component tolerance errors. |
| 16 FREQ | Frequency programming | Resistor to GND sets fSW: 180kΩ → ~475kHz, 82kΩ → ~1MHz, 27kΩ → ~2.5MHz - enables EMI band steering. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable flank QFN-16 | Enables AOI-compatible solder joint inspection - critical for zero-defect automotive manufacturing. |
| AEC-Q100 Grade 1 qualification | Rated for -40°C to +125°C junction temperature - validated for engine bay and ADAS ECU deployment. |
| Advanced Asynchronous Mode (AAM) | Reduces light-load quiescent current to 10μA and scales switching frequency downward - achieves >85% efficiency at 1mA load. |
| 80ns minimum on-time | Supports >90% duty cycle at 3.3VIN/5VOUT - maintains regulation during automotive cold-crank events. |
| Valley-current overcurrent protection | Detects low-side MOSFET current at zero-crossing - prevents inductor saturation and enables accurate current limiting. |
| CISPR25 Class 5 EMI compliance | Validated with standard EMI filters per Figure 17 - eliminates need for custom ferrite beads or shielded inductors. |
Applications
| Infotainment Power Supply | ADAS Camera Module |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codec in head-unit systems with 12V battery input subject to load-dump and cold-crank transients. IC Role / Device Role / Timing Role: Primary 5V buck regulator providing clean, sequenced power with PG assertion for system boot coordination. Use Value: AAM mode extends standby battery life; 36V max input and 80ns tON(min) ensure uninterrupted operation during cranking. |
Use Scenario: Supplies image sensor, ISP, and serializer in rear-view or surround-view cameras mounted in exterior housings. IC Role / Device Role / Timing Role: Fixed 5V point-of-load regulator with low EMI and thermal robustness for compact, sealed camera PCBs. Use Value: CISPR25 Class 5 compliance avoids costly shielding; wettable flank package ensures solder joint reliability in thermal cycling. |
| Body Control Module (BCM) | Telematics Control Unit (TCU) |
|
Use Scenario: Powers microcontroller, CAN transceiver, and LED drivers in door modules and lighting controllers exposed to wide ambient temperatures. IC Role / Device Role / Timing Role: High-efficiency 5V supply supporting always-on wake-up functionality with <10μA shutdown current. Use Value: 1μA shutdown current minimizes parasitic drain; AEC-Q100 Grade 1 rating guarantees operation at 125°C ambient. |
Use Scenario: Powers LTE/V2X modem, GNSS receiver, and secure element in cellular-connected vehicle gateways requiring long-term battery backup. IC Role / Device Role / Timing Role: Primary 5V rail generator with precise PG signaling for safe firmware update sequencing and brown-out recovery. Use Value: ±2.5% output accuracy ensures modem RF performance; BIAS pin option improves efficiency at 24V input common in commercial fleets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480-Q1 | 4.5V–36V input, 5A output, fixed 5V option available; higher IQ (15μA sleep) and no wettable flank package. | Lacks AOI-supporting wettable flank; requires external feedback for 5V; larger thermal footprint (HTSSOP-16). | Choose when higher output current margin is required and AOI is not mandated by production line. |
| TPS54560-Q1 | 3.5V–60V input, 5A output, adjustable only; no fixed 5V variant; 18μA IQ; no AAM mode. | Requires external resistor divider; lacks light-load efficiency optimization; wider input range unnecessary for 12V/24V auto. | Prefer only if 60V input capability (e.g., industrial hybrid systems) outweighs fixed-output convenience and AAM benefit. |
Compared with LM61480-Q1 and TPS54560-Q1, MPQ4430GLE-5-AEC1-Z delivers tighter output accuracy (±2.5% vs. ±3%), lower quiescent current (10μA vs. ≥15μA), and built-in AOI support - making it optimal for cost-sensitive, high-volume automotive infotainment and ADAS modules where board space and test yield are critical.
Availability
MPQ4430GLE-5-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply across extended temperature ranges and rigorous quality traceability.
Supply support for MPQ4430GLE-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 analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MPQ4430 product line targets automotive-grade DC/DC conversion, emphasizing AEC-Q100 qualification, ultra-low IQ, and EMI-hardened design for safety-critical and always-on vehicle subsystems.
FAQ
What is the purpose of the BIAS pin on MPQ4430GLE-5-AEC1-Z?
The BIAS pin accepts an external 5V–18V supply to power the internal gate drivers and control circuitry, bypassing the internal LDO. This reduces power dissipation-especially beneficial at high input voltages like 24V-improving full-load efficiency by up to 3% and lowering die temperature.
How does the PHASE pin affect system-level EMI in multi-converter designs?
The PHASE pin allows synchronization of MPQ4430GLE-5-AEC1-Z to an external clock with selectable 0° or 180° phase offset. When paralleling multiple converters, setting complementary phases reduces input capacitor RMS current and spreads spectral energy-lowering peak conducted EMI by up to 6dB.
Can MPQ4430GLE-5-AEC1-Z operate reliably during automotive cold-crank events?
Yes. With a 3.3V minimum input rating, 80ns minimum on-time, and low-dropout mode, it maintains regulated 5V output even when battery voltage sags to 3.3V for up to 15ms-meeting ISO 16750-2 cold-crank requirements for gasoline and diesel vehicles.
Is the FB pin left unconnected or tied to ground in the fixed 5V version?
In the MPQ4430GLE-5-AEC1-Z (fixed 5V variant), the FB pin must be connected directly to the output (VOUT) - not left floating or grounded. This configures the internal reference to assert regulation at 5V; leaving it open causes undefined behavior and potential regulation failure.
What is the recommended layout practice for the PGND and AGND connections?
PGND and AGND must be separated on the PCB and joined at a single point near the IC's thermal pad or input capacitor. PGND carries high di/dt switching currents and requires wide copper pours and multiple vias; AGND serves sensitive analog circuits and must avoid noise coupling from PGND traces or planes.
Does the wettable flank feature require special stencil or reflow profile adjustments?
No. The wettable flank QFN-16 uses standard lead-free reflow profiles (J-STD-020). The flank geometry is compatible with standard Type 3 solder paste and 0.15mm laser-cut stencils. AOI systems detect solder meniscus height on the side walls, eliminating need for X-ray inspection.
How is soft-start time calculated when using an external capacitor on the SS pin?
Soft-start time is determined by tSS = CSS × 0.8V / 10μA. For example, a 100nF capacitor yields tSS ≈ 8ms. The internal 0.7ms default occurs when SS is left floating - sufficient for most automotive loads but adjustable for inrush-sensitive downstream circuits.
MPQ4430GLE-5-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 16-PowerVQFN
- 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):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 3.5A
- Frequency - Switching:
- 350kHz ~ 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x4)
MPQ4430GLE-5-AEC1-Z FAQ
1.How can I place an order for MPQ4430GLE-5-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4430GLE-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 MPQ4430GLE-5-AEC1-Z reliable?
The price and inventory of MPQ4430GLE-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 MPQ4430GLE-5-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ4430GLE-5-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4430GLE-5-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4430GLE-5-AEC1-Z?
MPQ4430GLE-5-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4430GLE-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 MPQ4430GLE-5-AEC1-Z?
For technical support, including MPQ4430GLE-5-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4430GLE-5-AEC1-Z requirements.
6.How does Aetrix verify that MPQ4430GLE-5-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4430GLE-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 MPQ4430GLE-5-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ4430GLE-5-AEC1-Z?
All MPQ4430GLE-5-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4430GLE-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 MPQ4430GLE-5-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ4430GLE-5-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPQ4430GLE-5-AEC1-Z Tags
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