My Inquiry
My Account
Monolithic Power Systems Inc. MPM3509BGQVE-AEC1-Z
- Part No.:
- MPM3509BGQVE-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 17-PowerLQFN Module
- Datasheet:
-
MPM3509BGQVE-AEC1-Z.pdf
- Description:
- 36V, 0.6A MODULE, SYNCHRONOUS, S
- Quantity:
- Payment:
- Shipping:
Inventory:3,605
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPM3509BGQVE-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 (3mm×5mm×1.6mm) wettable flank package. It delivers 0.6A continuous output current with 4V–36V input range, fixed 400kHz switching frequency, and 0.807V feedback reference-designed for automotive infotainment and cluster power rails where space, EMI compliance, and thermal robustness are critical.
For engineers reviewing the MPM3509BGQVE-AEC1-Z datasheet, MPM3509BGQVE-AEC1-Z pinout, MPM3509BGQVE-AEC1-Z application, or MPM3509BGQVE-AEC1-Z equivalent, this page provides verified technical context, validated pin functions, CISPR25 Class 5 radiated/EMI performance data, FCCM operation details, and real-world automotive use-case implementation guidance-not generic converter summaries.
Technical Context
The MPM3509B operates in forced continuous conduction mode (FCCM) with peak-current-mode control, using an internal 400kHz oscillator synchronized to external clocks from 410kHz–2.2MHz. Its integrated 4.9V LDO powers internal circuitry across the full 4V–36V input range, eliminating need for external VCC capacitance.
Over-current protection combines cycle-by-cycle peak limiting (typ. 5.0A) with valley-current detection (typ. 2.5A) and hiccup-mode recovery during sustained short-circuit events. Thermal shutdown activates at 170°C with 20°C hysteresis, and PG pin provides open-drain power-good signaling referenced to 0.807V FB threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 36V - supports cold-crank (3.3V) and load-dump (36V) transients per ISO 16750-2 without external protection. |
| Output Current | 0.6A continuous - sufficient for powering microcontrollers, CAN transceivers, and display drivers in automotive clusters. |
| Feedback Reference | 0.807V ±12mV - enables precise output regulation down to 0.807V; used with external resistor divider for adjustable VOUT. |
| Switching Frequency | Fixed 400kHz, syncable 410kHz–2.2MHz - balances EMI filtering size, efficiency, and transient response in compact layouts. |
| RDS(ON) | HS: 90mΩ / LS: 50mΩ - minimizes conduction loss at 0.6A, enabling >90% efficiency at 12V→3.3V/0.6A. |
| EMI Compliance | CISPR25 Class 5 - meets stringent automotive radiated/conducted emission limits up to 1GHz with standard layout. |
| Thermal Shutdown | 170°C activation, 150°C recovery - protects against PCB hotspots and airflow-limited enclosures in dash-mounted systems. |
Pinout & Package
MPM3509BGQVE-AEC1-Z uses a wettable flank QFN-17 (3mm×5mm×1.6mm) package optimized for automated optical inspection (AOI) and high-reliability automotive solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PG) | Power Good indicator | Open-drain output asserting high when VOUT is within ±5% of target; requires external pull-up for logic-level signaling. |
| 2 (EN/SYNC) | Enable and clock synchronization input | Pull ≥1.45V to enable; apply 410kHz–2.2MHz square wave to synchronize switching; internal 500kΩ pull-down allows floating disable. |
| 3 (FB) | Feedback voltage sense | Connects to resistor divider tap; regulates output by comparing to 0.807V internal reference; sensitive to trace routing and noise. |
| 4 (VCC) | Internal LDO output | 4.9V regulated supply for internal logic; no external capacitor required due to integrated decoupling. |
| 5 (AGND) | Analog ground reference | Internally connected to PGND; must be tied to quiet analog ground plane-no direct external connections to PGND. |
| 6–8, 12 (SW) | Switch node outputs | High-current paths for internal HS/LS FETs; recommended to connect to large copper pour for thermal dissipation. |
| 9–11 (OUT) | Power output terminals | Parallel pins reduce impedance and improve current sharing; connect directly to output capacitor and load. |
| 13 (BST) | Bootstrap capacitor node | Internally charged; no external components needed-bootstrap regulator maintains ~5V gate drive for HS-FET. |
| 14–15 (PGND) | Power ground return | Primary return path for high di/dt currents; requires low-inductance connection via multiple vias to inner ground plane. |
| 16 (IN) | Main input supply | Accepts 4V–36V; requires low-ESR/low-inductance ceramic capacitor placed <2mm from pin with wide traces and multiple vias. |
| 17 (NC) | No connection | Must remain unconnected and floating-no PCB trace or pad should contact this terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power stage | Combines 90mΩ/50mΩ MOSFETs, 4.7µH inductor, and input/output capacitors-reduces BOM count to only four external components. |
| FCCM operation | Maintains fixed 400kHz switching from zero to full load, minimizing output ripple and simplifying EMI filter design. |
| Wettable flank package | Enables reliable AOI inspection of solder fillets on all 17 perimeter pins-critical for AEC-Q100 Grade 1 automotive production. |
| Valley-current OCP + hiccup | Detects inductor valley current below 2.5A and enters periodic restart mode during hard shorts-limits average fault current to <100mA. |
| Cold-crank support | Regulates output down to VIN = 3.3V (per test data), sustaining 3.3V/0.6A during engine start without brownout. |
Applications
| Automotive Infotainment | Automotive Clusters |
|---|---|
|
Use Scenario: Powering SoC cores, DDR memory, and audio codecs in head-unit mainboards exposed to 12V battery rail with load-dump spikes. IC Role / Device Role / Timing Role: Primary 3.3V/0.6A point-of-load regulator delivering stable voltage under fast line transients (e.g., 12V→36V in 50ms). Use Value: Eliminates need for external TVS and pre-regulator stages due to 36V absolute max rating and CISPR25 Class 5 compliance. |
Use Scenario: Supplying MCU, TFT display bias, and CAN FD transceiver in digital instrument clusters operating at -40°C to +125°C ambient. IC Role / Device Role / Timing Role: Secondary 5V/0.6A rail generator with PG signal enabling safe boot sequencing and watchdog reset coordination. Use Value: AEC-Q100 Grade 1 qualification ensures reliability over 15-year vehicle lifetime; wettable flank enables 100% solder joint inspection. |
| Automotive Telematics | Medical Imaging Subsystems |
|
Use Scenario: Providing isolated 3.3V power to LTE modem, GNSS receiver, and eSIM in telematics control units (TCUs) mounted near engine bay. IC Role / Device Role / Timing Role: Compact, thermally robust DC/DC converter handling cold-crank (VIN=3.3V) and high-temp derating without output collapse. Use Value: 46°C/W θJA on 4-layer board enables 0.6A operation at 105°C ambient-no heatsink or airflow required. |
Use Scenario: Generating clean 3.3V for FPGA configuration, sensor ADCs, and serial interface ICs in portable ultrasound or X-ray subsystems. IC Role / Device Role / Timing Role: Low-noise, EMI-compliant power source meeting IEC 60601-1 immunity requirements in safety-critical medical devices. Use Value: Meets CISPR25 Class 5 without ferrite beads or shielding cans-reducing bill-of-materials and assembly cost. |
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 |
|---|---|---|---|
| MPM3515GQV-AEC1-Z | Higher 1.5A output, same 4V–36V input, larger QFN-21 (4mm×5mm) footprint, 120mΩ/70mΩ RDS(ON) | Supports higher-power ADAS processors; requires PCB redesign due to different pinout and thermal pad layout. | Select when >0.6A load current or extended thermal margin is required-same AEC-Q100 Grade 1 qualification and wettable flank. |
| TPS82084SILR | TI 0.6A module, 2.5V–6V input only, 2.1MHz fixed frequency, no sync capability, non-automotive grade | Limited to low-voltage applications like USB-powered diagnostics tools; lacks cold-crank/load-dump resilience. | Only suitable for non-automotive, low-input-voltage designs where AEC-Q100 and 4V–36V operation are not required. |
Compared with MPM3515GQV-AEC1-Z, the MPM3509BGQVE-AEC1-Z offers smaller footprint and lower RDS(ON) for 0.6A loads, while TPS82084SILR fails to meet automotive voltage and qualification requirements-making MPM3509B the optimal choice for space-constrained, AEC-Q100-compliant 0.6A rails.
Availability
MPM3509BGQVE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, instrument clusters, and telematics systems requiring stable component supply, AEC-Q100 Grade 1 qualification, and long-term production continuity.
Supply support for MPM3509BGQVE-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 and modules, with design centers in the US, China, and Taiwan.
The MPM3509B belongs to MPS's automotive-grade power module product line, engineered specifically for harsh-environment DC/DC conversion in vehicles-emphasizing AEC-Q100 compliance, integrated magnetics, and EMI robustness without external shielding.
FAQ
What is the minimum input voltage required for startup under cold-crank conditions?
The MPM3509BGQVE-AEC1-Z starts regulating at VIN ≥ 3.3V, verified per cold-crank test data (Figure 12, Rev. 1.0 datasheet). Startup occurs with EN/SYNC pulled high and FB connected; output reaches 90% of target within 1.7ms soft-start time even at 3.3V input.
Can the switching frequency be adjusted below 400kHz?
No-the internal oscillator is fixed at 400kHz and cannot be reduced. However, it supports synchronization to external clocks from 410kHz to 2.2MHz. Frequency foldback occurs only during fault conditions (e.g., FB < 400mV), dropping to ~125kHz to limit current runaway.
Is an external bootstrap capacitor required?
No. The MPM3509B integrates a bootstrap regulator and capacitor internally. Pin BST (13) requires no external components-its voltage is maintained at ~5V relative to SW by an internal PMOS charge pump during LS-FET conduction.
How does the PG pin behave during thermal shutdown?
During thermal shutdown, the PG pin goes low (open-drain sink active) once VOUT drops below 95% of target due to switching halt. PG remains low until thermal recovery (TJ < 150°C) and VOUT re-stabilizes-providing system-level fault indication without additional monitoring circuitry.
What is the maximum allowable output capacitance?
No hard upper limit is specified, but stability analysis shows phase margin remains >45° with up to 470µF ceramic output capacitance. Larger values increase soft-start time and inrush current; typical designs use 22µF–100µF X7R ceramics placed within 3mm of OUT pins.
Does the NC pin (17) require PCB keep-out or grounding?
Pin 17 is a true no-connect terminal-must be left electrically floating with no trace, pad, or solder mask opening. Placing copper or vias near it risks parasitic coupling; MPS recommends maintaining ≥0.2mm clearance to adjacent conductors per package drawing.
How is CISPR25 Class 5 compliance achieved without external filters?
Compliance is achieved through integrated MOSFET slew-rate control, optimized internal gate drivers, and careful layout of internal power loops-verified on the EVM3509B-QV-00A evaluation board with standard 4-layer PCB and minimal external components (two 10µF X7R caps, one 100nF ceramic).
MPM3509BGQVE-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 ~ 34.2V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 600mA
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, Remote On/Off
- Operating Temperature:
- -40°C ~ 125°C (With Derating)
- Efficiency:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 17-QFN (3x5)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3509BGQVE-AEC1-Z FAQ
1.How can I place an order for MPM3509BGQVE-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3509BGQVE-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 MPM3509BGQVE-AEC1-Z reliable?
The price and inventory of MPM3509BGQVE-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 MPM3509BGQVE-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3509BGQVE-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3509BGQVE-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3509BGQVE-AEC1-Z?
MPM3509BGQVE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3509BGQVE-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 MPM3509BGQVE-AEC1-Z?
For technical support, including MPM3509BGQVE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3509BGQVE-AEC1-Z requirements.
6.How does Aetrix verify that MPM3509BGQVE-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3509BGQVE-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 MPM3509BGQVE-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3509BGQVE-AEC1-Z?
All MPM3509BGQVE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3509BGQVE-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 MPM3509BGQVE-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3509BGQVE-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPM3509BGQVE-AEC1-Z Tags
-
1S4E_0505S1.5U
GAPTEC Electronic
-
TPS631000DRLR
Texas Instruments
-
XCL209F083DR
Torex Semiconductor Ltd
-
SC202AMLTRT
Semtech Corporation
-
NME1S0505SC
Murata Power Solutions Inc.
-
XCL101A501ER-G
Torex Semiconductor Ltd
-
RFM-0505S
Recom Power
-
TEA 1-0505E
Traco Power
-
MIC33153YHJ-TR
Microchip Technology
-
TEA 1-0505
Traco Power
-
TPSM863252RDXR
Texas Instruments
-
RFB-0505S
Recom Power
Tech Hub
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…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
