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Monolithic Power Systems Inc. MPM3515GQVE-AEC1-Z
- Part No.:
- MPM3515GQVE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 17-PowerLQFN Module
- Datasheet:
-
MPM3515GQVE-AEC1-Z.pdf
- Description:
- DC DC CONVERTER 0.8-30V
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MPM3515GQVE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC power module integrating MOSFETs, inductor, and input/output capacitors in a single QFN-17 package. It delivers 1.5A continuous output current from a 4V–36V input, operates at 2.2MHz fixed switching frequency, features Power Good (PG) indication, and supports frequency synchronization from 450kHz to 2.2MHz for automotive infotainment power rails.
For engineers reviewing the MPM3515GQVE-AEC1-Z datasheet, MPM3515GQVE-AEC1-Z pinout, MPM3515GQVE-AEC1-Z application, or MPM3515GQVE-AEC1-Z equivalent, key selection criteria include its wettable flank QFN-17 package for automated optical inspection, integrated inductor eliminating external magnetics, valley-current OCP with hiccup mode, CISPR25 Class 5 EMI compliance, and thermal shutdown at 170°C.
Technical Context
The MPM3515GQVE-AEC1-Z uses peak-current-mode control with internal compensation, enabling stable regulation across 0.8V–VIN×0.85 output range without external loop components. Its forced CCM operation ensures fixed-frequency behavior from no-load to full-load, minimizing light-load output ripple and simplifying EMI filtering.
It integrates a 4.8V internal LDO (VCC), bootstrap capacitor, and valley-current detection circuitry-enabling robust short-circuit protection via dual-level current limiting (peak + valley) and automatic hiccup recovery. Frequency foldback activates at VIN >21V or during soft-start/short-circuit, reducing switching frequency to 1.1MHz to maintain control stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 36V - supports wide automotive battery transients including cold-crank (4.5V) and load-dump (36V). |
| Output Current | 1.5A continuous - sufficient for powering ADAS camera modules, MCU cores, or sensor interfaces. |
| Switching Frequency | Fixed 2.2MHz - enables compact external filter design and avoids AM radio band interference. |
| Feedback Reference | 0.807V ±13mV - sets precise output voltage via resistor divider; enables 0.8V minimum VOUT. |
| Thermal Shutdown | 170°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design. |
| OCP Threshold | 2.4A to 5.5A peak, 1.5A to 3.5A valley - provides graded fault response: cycle-by-cycle limit then hiccup on sustained overcurrent. |
| EMI Compliance | CISPR25 Class 5 - meets stringent automotive radiated emissions requirements without additional shielding. |
Pinout & Package
MPM3515GQVE-AEC1-Z is housed in a wettable flank QFN-17 package (3mm × 5mm × 1.6mm), optimized for automated optical inspection (AOI) and high-reliability solder joint formation in automotive PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power Good open-drain output | Signals valid regulation (VOUT ≥ 90% nominal); requires external pull-up for system power sequencing. |
| 2 (EN/SYNC) | Enable/synchronization input | Active-high enable; accepts 450kHz–2.2MHz external clock for EMI reduction or multi-rail synchronization. |
| 3 (FB) | Feedback input | Connects to resistor divider tap; internal 0.807V reference enables precise output voltage programming. |
| 4 (VCC) | Internal LDO output | 4.8V regulated supply for internal circuitry; no external capacitor required due to integrated decoupling. |
| 5 (AGND) | Analog ground reference | Internally tied to PGND; serves as reference for FB, EN/SYNC, and error amplifier-must be star-connected near IC. |
| 6,7,8,12 (SW) | Switch node | High-frequency drain connection of internal HS-FET; requires large copper pour for thermal dissipation and low-inductance routing. |
| 9,10,11 (OUT) | Power output | Delivers regulated DC output; connects directly to load and output capacitor (e.g., 47µF ceramic). |
| 13 (BST) | Bootstrap supply | Internally charged node for HS-FET gate drive; no external diode or capacitor needed under typical operating conditions. |
| 14,15 (PGND) | Power ground | High-current return path for MOSFETs and inductor; must be connected via multiple vias to inner ground plane. |
| 16 (IN) | Main input supply | Accepts 4V–36V; requires low-ESR ceramic input capacitor (e.g., 4.7µF) placed adjacent to pin with wide traces. |
| 17 (NC) | No connect | Must remain unconnected and floating-no internal connection or function. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Magnetics | On-module 2.2µH shielded inductor eliminates external coil selection, placement, and EMI tuning effort. |
| Wettable Flank Packaging | QFN-17 with solderable side walls enables AOI-compatible solder joint inspection for automotive zero-defect manufacturing. |
| Frequency Synchronization | 450kHz–2.2MHz sync range allows coordinated switching across multiple rails to suppress beat frequencies and simplify EMI filter design. |
| Valley-Current OCP + Hiccup | Dual-level current protection prevents thermal runaway during sustained overload while minimizing average fault current (<100mA typical in hiccup). |
| CISPR25 Class 5 Compliance | Validated radiated emissions performance up to 1GHz with standard layout and optional EMI filter-reduces qualification risk for Tier 1 suppliers. |
Applications
| Automotive Infotainment | ADAS Camera Power |
|---|---|
|
Use Scenario: Powering SoC I/O rails and display interface circuitry in head units with 12V battery input and transient immunity requirements. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering stable 3.3V/1.5A with fast transient response to handle burst-mode video processing loads. Use Value: Integrated inductor and 2.2MHz operation minimize board area and avoid AM-band noise; AEC-Q100 Grade 1 ensures reliability over -40°C to +125°C junction. |
Use Scenario: Supplying image sensor and ISP core voltage in surround-view or front-facing ADAS cameras exposed to engine bay temperatures. IC Role / Device Role / Timing Role: Compact, thermally robust 5V or 3.3V source with PG signaling for safe boot sequencing and fault reporting to host MCU. Use Value: Wettable flank QFN enables reliable reflow in high-vibration environments; thermal shutdown and hiccup mode prevent field failures during connector shorts. |
| Industrial Motor Control | Medical Imaging Interface |
|
Use Scenario: Generating isolated logic supply for gate drivers and position feedback circuits in brushless motor controllers with 24V bus input. IC Role / Device Role / Timing Role: Secondary buck stage converting 24V to 5V for microcontroller peripherals and communication interfaces (CAN, UART). Use Value: Wide 4V–36V input accommodates brownout and surge events; frequency sync capability aligns switching with main inverter to reduce conducted noise coupling. |
Use Scenario: Providing clean, low-noise 1.8V or 2.5V for high-speed ADCs and FPGA configuration in portable ultrasound or X-ray detector modules. IC Role / Device Role / Timing Role: Low-ripple, EMI-controlled power source meeting strict medical EMC standards without added ferrite beads or shielding. Use Value: CISPR25 Class 5 compliance verified per test setup in datasheet; fixed CCM operation ensures consistent ripple spectrum across load range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS82130SILR | Lower 6V max input, 3A output, 2.2MHz, but lacks AEC-Q100 qualification and wettable flank packaging. | Suitable for industrial IoT edge nodes-not automotive qualified or EMI-optimized for vehicle integration. | Select when cost-sensitive non-automotive designs require higher current and smaller footprint (2.05mm × 2.55mm). |
| MAX20004AATP+T | 4.5V–36V input, 1.5A, AEC-Q100 Grade 1, but uses external inductor and lacks frequency sync or PG pin. | Requires additional magnetics design and layout effort; no built-in power-good signaling for safety-critical sequencing. | Choose when board space permits discrete inductor placement and system-level monitoring replaces PG functionality. |
Compared with TPS82130SILR and MAX20004AATP+T, the MPM3515GQVE-AEC1-Z uniquely combines AEC-Q100 Grade 1, wettable flank QFN, integrated inductor, PG output, and CISPR25 Class 5 compliance-making it the only drop-in solution for space-constrained, safety-aware automotive power rails requiring zero external magnetics.
Availability
MPM3515GQVE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and industrial motor control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MPM3515GQVE-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 across Asia and North America and global distribution infrastructure.
The MPM3515 product line targets automotive and industrial power conversion needs where small size, high efficiency, and AEC-Q100 reliability are mandatory-delivering fully integrated DC/DC modules that eliminate magnetics design complexity.
FAQ
What is the purpose of the BST pin, and is an external bootstrap capacitor required?
No external bootstrap capacitor or diode is required. The MPM3515GQVE-AEC1-Z integrates both the bootstrap capacitor and charging circuitry. The BST pin is internally connected to a dedicated regulator that maintains ~4.8V relative to SW during LS-FET conduction, ensuring robust HS-FET gate drive across the full input range.
How does the frequency foldback feature operate, and when is it triggered?
Frequency foldback reduces the switching frequency from 2.2MHz to 1.1MHz when VIN exceeds ~21V, during soft-start, or under short-circuit conditions. This prevents current-limit runaway by extending off-time, maintaining control loop stability, and reducing power dissipation during fault events without disabling regulation.
Can the MPM3515GQVE-AEC1-Z be used without the PG pin connected?
Yes-the PG pin is optional. Leaving it unconnected disables power-good signaling, but all regulation functions remain fully operational. For systems requiring power sequencing or fault detection, a 10kΩ pull-up to VOUT is recommended to interface with MCU reset or supervisor IC inputs.
What is the maximum allowable output voltage, and how is it set?
The maximum output voltage is VIN × DMAX, where DMAX = 85%. With VIN = 36V, theoretical maximum is 30.6V-but practical limits are governed by external resistor divider ratings and output capacitor voltage rating. Output voltage is set using R1/R2 per VOUT = 0.807V × (1 + R1/R2), with R1 typically 75kΩ.
Does the device support forced PWM mode at light load, and how is it enabled?
Yes-it operates exclusively in Forced Continuous Conduction Mode (CCM) across all load conditions, eliminating mode transitions and associated output ripple spikes. No external configuration is needed; CCM is inherent to the control architecture and ensures predictable EMI behavior from zero to full load.
What is the significance of the "E" suffix in MPM3515GQVE-AEC1-Z?
The "E" denotes wettable flank packaging-meaning the QFN-17's peripheral sidewalls are metallized to enable automated optical inspection (AOI) of solder joints after reflow. This is critical for automotive manufacturing process control and zero-defect quality requirements under IATF 16949.
How does the valley-current OCP differ from standard peak-current limiting?
Valley-current detection monitors inductor current at the end of each switching cycle. If the valley current remains above 1.5A–3.5A (depending on temp), the HS-FET is inhibited-even if the clock pulses-preventing runaway during overload. Combined with peak limiting, this provides two-stage protection that reduces thermal stress versus single-threshold schemes.
MPM3515GQVE-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 17-PowerLQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 36V
- Voltage - Output 1:
- 0.8 ~ 30V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 1.5A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, UVLO
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-QFN (3x5)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3515GQVE-AEC1-Z FAQ
1.How can I place an order for MPM3515GQVE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3515GQVE-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 MPM3515GQVE-AEC1-Z reliable?
The price and inventory of MPM3515GQVE-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 MPM3515GQVE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3515GQVE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3515GQVE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3515GQVE-AEC1-Z?
MPM3515GQVE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3515GQVE-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 MPM3515GQVE-AEC1-Z?
For technical support, including MPM3515GQVE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3515GQVE-AEC1-Z requirements.
6.How does Aetrix verify that MPM3515GQVE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3515GQVE-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 MPM3515GQVE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3515GQVE-AEC1-Z?
All MPM3515GQVE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3515GQVE-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 MPM3515GQVE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3515GQVE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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