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Monolithic Power Systems Inc. MPQ4430GLE-5-AEC1-P
- Part No.:
- MPQ4430GLE-5-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-VQFN
- Datasheet:
-
MPQ4430GLE-5-AEC1-P.pdf
- Description:
- IC REG BUCK 5V 3.5A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,012
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Product details
Overview
MPQ4430GLE-5-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter delivering 3.5A continuous output at fixed 5V with 3.3V–36V input range, 10μA sleep-mode quiescent current, and integrated 90mΩ/40mΩ MOSFETs - designed for automotive infotainment power rails, ADAS camera modules, and body control units requiring cold-crank operation.
For engineers reviewing the MPQ4430GLE-5-AEC1-P datasheet, MPQ4430GLE-5-AEC1-P pinout, MPQ4430GLE-5-AEC1-P application, or MPQ4430GLE-5-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-16 package for automated optical inspection, programmable 350kHz–2.5MHz switching frequency, valley-current OCP with hiccup mode, and low-dropout mode enabling stable regulation down to 2.4V VIN during cold-crank.
Technical Context
The MPQ4430GLE-5-AEC1-P implements current-mode PWM control with internal high-side and low-side MOSFETs, supporting both forced CCM (via SYNC high) and advanced asynchronous mode (AAM) for light-load efficiency optimization. Its 80ns minimum on-time enables high VIN-to-VOUT ratios, while valley-current detection provides precise over-current protection independent of duty cycle.
It integrates a precision 0.8V feedback reference, power-good (PG) open-drain indicator with ±10% threshold hysteresis, and configurable soft-start via external capacitor. The BIAS pin supports external 5–18V biasing to reduce thermal stress, and PHASE pin enables in-phase or 180° out-of-phase synchronization with external clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.3V to 36V - supports full automotive battery range including cold-crank (down to 2.4V UVLO threshold). |
| Output Voltage | Fixed 5.0V ±2.5% - factory-trimmed; no external resistor divider required. |
| Continuous Output Current | 3.5A - sustained delivery with integrated MOSFETs and thermal shutdown at 170°C. |
| Quiescent Current | 10μA in sleep mode - enables >1-year battery standby in always-on vehicle modules. |
| Switching Frequency | 350kHz to 2.5MHz - programmable via FREQ pin resistor or external SYNC clock. |
| Package | QFN-16 (3mm × 4mm) with wettable flanks - ensures solder joint reliability and AOI compatibility. |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C TJ) - qualified for under-hood and safety-critical automotive applications. |
Pinout & Package
MPQ4430GLE-5-AEC1-P is housed in a thermally enhanced, lead-free, wettable-flank QFN-16 (3mm × 4mm) package with exposed thermal pad. Pin 1 is marked by a dot or chamfered corner; pins are numbered counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PHASE | Synchronization phase select | Drives high for in-phase sync, low for 180° out-of-phase; 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 | Power switch node | Internal connection point of HS/LS MOSFETs; critical for EMI layout and inductor placement. |
| 4,9 PGND | Power ground return | High-current return path; must be connected to large copper pour with multiple vias to thermal pad. |
| 5 EN | Enable control | Active-high logic input (1.05V threshold); enables/disables regulation and reduces IQ to 1μA in shutdown. |
| 6 SYNC | Frequency sync & mode select | Accepts 350kHz–2.5MHz clock; sets CCM (high) or AAM (low/floating) before startup. |
| 7 PG | Power-good indicator | Open-drain output asserting high when VOUT is within ±10% of 5V; requires pull-up resistor. |
| 8 BIAS | External bias supply | Optional 5–18V input to reduce internal LDO dissipation and improve efficiency at high VIN. |
| 11 BST | Bootstrap supply | Connects 0.1μF ceramic capacitor between BST and SW to drive high-side gate. |
| 12 VCC | Internal bias rail | Supplies control circuitry; requires ≥1μF ceramic decoupling to AGND. |
| 13 AGND | Analog ground reference | Low-noise reference for FB, SS, and error amplifier; separate from PGND except at single-point star ground. |
| 14 SS | Soft-start timing | 10μA current source charges external capacitor; floating defaults to 0.7ms internal soft-start. |
| 15 FB | Feedback input | Connected directly to 5V output (fixed version); not used for resistor divider. |
| 16 FREQ | Frequency programming | Resistor-to-GND sets fSW: 180kΩ = ~475kHz, 82kΩ = ~1MHz, 27kΩ = ~2.5MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Asynchronous Mode (AAM) | Reduces light-load quiescent current to 10μA by dynamically scaling switching frequency and entering sleep mode. |
| Low-Dropout Mode | Maintains regulation down to VIN = 2.4V (UVLO rising threshold), supporting automotive cold-crank conditions. |
| Valley-Current Over-Current Protection | Detects inductor current at zero-crossing to prevent runaway during short-circuit; triggers hiccup mode. |
| Wettable Flank Package | Enables automated optical inspection (AOI) of solder joints on bottom leads - critical for automotive traceability. |
| EMI-Optimized Design | Meets CISPR 25 Class 5 conducted/radiated emissions limits with standard EMI filter per Figure 17. |
| Programmable Minimum On-Time | 80ns minimum on-time allows stable 5V output from up to 36V input at high switching frequencies. |
Applications
| Automotive Infotainment Power Supply | ADAS Camera Module Rail |
|---|---|
|
Use Scenario: Powers SoC, display interface, and audio codecs in head-unit systems with wide battery voltage swing and strict EMI requirements. IC Role / Device Role / Timing Role: Primary 5V buck regulator supplying core logic rails; operates in forced CCM for low ripple and predictable EMI profile. Use Value: Wettable flank QFN ensures manufacturing yield; AEC-Q100 Grade 1 qualification guarantees operation at 125°C junction temperature. |
Use Scenario: Supplies image sensor and ISP in rear-view or surround-view cameras exposed to engine bay temperatures. IC Role / Device Role / Timing Role: Fixed 5V point-of-load regulator with low dropout mode maintaining output during 6V cold-crank events. Use Value: 10μA sleep current extends battery backup runtime; valley-current OCP protects against lens motor short circuits. |
| Body Control Unit (BCU) Subsystem | Automotive Gateway Microcontroller Rail |
|
Use Scenario: Powers CAN transceivers, LIN nodes, and door module MCUs in distributed vehicle networks. IC Role / Device Role / Timing Role: Secondary 5V rail derived from 12V battery; uses AAM to minimize standby power in sleep states. Use Value: 1μA shutdown current prevents battery drain; PG signal enables MCU-controlled power sequencing. |
Use Scenario: Supplies 5V to gateway microcontrollers managing domain communication and OTA updates. IC Role / Device Role / Timing Role: High-reliability buck converter with thermal shutdown and hiccup-mode fault recovery. Use Value: Integrated 90mΩ/40mΩ MOSFETs eliminate external components; BIAS pin reduces thermal load at 24V input. |
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 |
|---|---|---|---|
| MPQ4433GLE-5-AEC1-P | Higher 5A output current rating; identical pinout, package, and feature set. | Required where peak load currents exceed 3.5A (e.g., multi-sensor fusion gateways). | Select when future-proofing for higher current or margin expansion without layout change. |
| TPS54360BQPWPRQ1 | Lower 3.5A rating but wider 3.5V–60V input range; no wettable flanks; different pinout. | Suitable for 48V mild-hybrid systems where 36V max is insufficient. | Choose only if >36V input capability is mandatory and board redesign is acceptable. |
Compared with MPQ4430GLE-5-AEC1-P, the MPQ4433 offers headroom for current growth in same footprint, while TPS54360BQPWPRQ1 trades automotive manufacturability (no wettable flanks) for extended input range - making MPQ4430 the optimal balance of AEC-Q100 compliance, EMI performance, and production-ready packaging.
Availability
MPQ4430GLE-5-AEC1-P 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 long product lifecycles.
Supply support for MPQ4430GLE-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 analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MPQ4430 belongs to MPS's automotive-grade DC/DC converter product line, engineered specifically for AEC-Q100-compliant power conversion in harsh-temperature, high-reliability vehicle subsystems.
FAQ
What is the purpose of the BIAS pin on MPQ4430GLE-5-AEC1-P?
The BIAS pin accepts an external 5V–18V supply to power the internal LDO, reducing power dissipation and improving efficiency-especially at high input voltages like 24V or 36V. When unused, it should be left floating or tied to GND; connecting it improperly can cause regulation instability or thermal overload.
How does the MPQ4430GLE-5-AEC1-P handle cold-crank conditions?
It maintains regulation down to VIN = 2.4V (UVLO rising threshold) using low-dropout mode, where the high-side MOSFET remains on longer to sustain 5V output even during engine cranking. This is enabled automatically and requires no external configuration beyond proper input capacitance and layout.
Can the MPQ4430GLE-5-AEC1-P be synchronized to an external clock?
Yes - apply a 350kHz–2.5MHz square wave to the SYNC pin. The external clock must exceed the RFREQ-set frequency by ≥250kHz. PHASE pin selects in-phase or 180° out-of-phase alignment, supporting multi-rail EMI reduction in complex power trees.
What is the function of the PG (power good) pin?
PG is an open-drain output that pulls high when VOUT is within ±10% of 5.0V (i.e., 4.5V–5.5V). It asserts after soft-start completes and de-asserts during undervoltage, overvoltage, or thermal shutdown. A pull-up resistor to 3.3V or 5V is required for proper logic-level signaling to MCU reset controllers.
Is the MPQ4430GLE-5-AEC1-P RoHS and halogen-free compliant?
Yes - all MPQ4430 variants are lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU. MPS confirms green status via its Quality Assurance portal, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life.
How is soft-start configured on this fixed-output variant?
Soft-start time is set by an external capacitor from SS to AGND, charged by a 10μA internal current source. For example, a 47nF capacitor yields ~0.47ms start-up. If SS is left floating, the device defaults to internal 0.7ms soft-start - ensuring controlled inrush current without external components.
Does the MPQ4430GLE-5-AEC1-P support spread-spectrum frequency modulation?
No - the MPQ4430 does not implement spread-spectrum modulation. EMI compliance (CISPR 25 Class 5) is achieved through optimized gate drive, integrated MOSFETs, low-noise control architecture, and recommended external EMI filters shown in Figure 17 of the datasheet.
MPQ4430GLE-5-AEC1-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MPQ
- Package/Case:
- 16-VQFN
- 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, Wettable Flank
- Supplier Device Package:
- 16-QFN (3x4)
MPQ4430GLE-5-AEC1-P FAQ
1.How can I place an order for MPQ4430GLE-5-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4430GLE-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 MPQ4430GLE-5-AEC1-P reliable?
The price and inventory of MPQ4430GLE-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 MPQ4430GLE-5-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPQ4430GLE-5-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4430GLE-5-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4430GLE-5-AEC1-P?
MPQ4430GLE-5-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4430GLE-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 MPQ4430GLE-5-AEC1-P?
For technical support, including MPQ4430GLE-5-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4430GLE-5-AEC1-P requirements.
6.How does Aetrix verify that MPQ4430GLE-5-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPQ4430GLE-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 MPQ4430GLE-5-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPQ4430GLE-5-AEC1-P?
All MPQ4430GLE-5-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4430GLE-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 MPQ4430GLE-5-AEC1-P part is unused and in its original packaging.
Return procedure for MPQ4430GLE-5-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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