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Monolithic Power Systems Inc. MPM3806CGLE-12-AEC1-Z
- Part No.:
- MPM3806CGLE-12-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3806CGLE-12-AEC1-Z.pdf
- Description:
- 5.5V, 1A, 2.4MHZ, SYNCHRONOUS ST
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MPM3806CGLE-12-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated synchronous step-down power module delivering 1A continuous output at fixed 1.2V with 2.4MHz switching frequency, integrated MOSFETs and inductor, and operation across 2.5V–5.5V input range - deployed in automotive ADAS sensors and camera modules.
For engineers reviewing the MPM3806CGLE-12-AEC1-Z datasheet, MPM3806CGLE-12-AEC1-Z pinout, MPM3806CGLE-12-AEC1-Z application, or MPM3806CGLE-12-AEC1-Z equivalent, key selection criteria include its wettable-flank QFN-15 package, ±2% output voltage accuracy over temperature, FCCM mode for EMI control, and PG/EN/SS pin support for automotive power sequencing and fault monitoring.
Technical Context
The MPM3806CGLE-12-AEC1-Z implements constant-on-time (COT) control with VIN feed-forward to maintain stable 2.4MHz switching across full input (2.5V–5.5V) and load (0–1A) ranges. Its internal 75mΩ high-side and 45mΩ low-side MOSFETs enable high efficiency at light loads while supporting 100% duty cycle for low-dropout operation.
FCCM ensures continuous conduction mode under all conditions, eliminating audible noise and improving ripple performance. The device integrates a 470nH inductor with 25mΩ DCR and uses a dedicated OUT_S pin for controlled output discharge, with PG threshold set at 90% of 0.6V reference for reliable rail monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% over -40°C to +150°C junction temperature - enables direct powering of 1.2V core rails without external feedback resistors. |
| Max Output Current | 1A continuous - supports single-core microcontrollers, image sensors, and radar transceivers in space-constrained automotive modules. |
| Switching Frequency | 2.4MHz nominal - allows use of small external capacitors and reduces EMI fundamental frequency above AM band. |
| Input Voltage Range | 2.5V to 5.5V - compatible with automotive 3.3V and 5V supply domains, including post-LDO or buck-boost intermediate rails. |
| Thermal Rating | AEC-Q100 Grade 1 (–40°C to +125°C ambient / –40°C to +150°C junction) - validated for under-hood and ADAS sensor placement. |
| Protection Features | Cycle-by-cycle current limiting, thermal shutdown at 170°C, hiccup-mode short-circuit protection, and output OVP at 115% VREF - ensures robustness during load faults and hot-swap events. |
| Package | QFN-15 (3mm × 4mm × 1.6mm) with wettable flanks - supports automated optical inspection (AOI) and improves solder joint reliability in automotive reflow profiles. |
Pinout & Package
MPM3806CGLE-12-AEC1-Z is housed in a thermally enhanced QFN-15 (3mm × 4mm × 1.6mm) package with wettable flank leads for solder joint inspection. The exposed thermal pad (pin 10–11 GND) must be connected to a large PCB copper area with multiple vias for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference input | Float for fixed 1.2V output; unused in this variant - eliminates need for external resistor divider and associated layout sensitivity. |
| 2 PG | Open-drain power good indicator | Pulled high when VFB ≥ 90% of 0.6V (i.e., VOUT ≥ 1.08V); pulled low if VOUT drops below 1.02V - enables system-level power sequencing and fault logging. |
| 3 VIN | Main input supply | Accepts 2.5V–5.5V; requires local 10µF ceramic decoupling - supports direct connection to automotive battery-derived rails with minimal filtering. |
| 4–6 SW | Switch node | Internally connects to drain of high-side P-MOSFET and inductor - shared high-current path requiring tight loop layout to minimize EMI and voltage spikes. |
| 7–9 OUT | Regulated output | Delivers 1.2V/1A to load; connects directly to output capacitor and load - low-impedance path critical for transient response in camera sensor applications. |
| 10–11 GND | Power and signal ground | Primary thermal and return path; must be tied to large copper pour with ≥6 vias - essential for thermal dissipation and noise immunity in automotive environments. |
| 12 EN | Enable control | Active-high logic input (0.9V threshold); internal 2MΩ pull-down - enables precise power-up timing and coordination with MCU reset signals. |
| 13 SS | Soft-start timing | Connects to external capacitor (≥1nF) to control VOUT ramp rate - prevents inrush current into downstream capacitive loads like image sensor arrays. |
| 14 OUT_S | Output sense & discharge path | Provides controlled discharge path (150Ω) when EN = low - avoids floating 1.2V rail during sleep modes, critical for functional safety compliance. |
| 15 DNC | No-connect pad | Internally tied to SW; must remain unconnected and un-routed - prevents parasitic coupling and ensures proper thermal pad isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated power stage | 75mΩ HS + 45mΩ LS MOSFETs + 470nH inductor in single QFN - eliminates discrete BOM items and layout variability for automotive-grade DC/DC design. |
| FCCM operation | Forced Continuous Conduction Mode across full load range - eliminates mode transitions, ensuring consistent EMI profile and ripple performance in ADAS systems. |
| Wettable flank package | QFN-15 with solderable side walls - enables AOI verification of solder joints per IPC-A-610 Class 3 requirements for automotive production. |
| Pre-biased soft start | Supports startup into pre-charged 1.2V output - required for systems with backup capacitors or cascaded regulators where output voltage is not zero at enable. |
| Output discharge path | Internal 150Ω discharge switch from OUT_S to GND - actively discharges 1.2V rail during shutdown, meeting ISO 26262 ASIL-B safe state requirements. |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
|
Use Scenario: Powering CMOS image sensors and ISP processors in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Primary 1.2V core supply with fast transient response to handle burst-mode pixel readout currents. Use Value: Integrated inductor and COT control deliver <50mV output deviation during 1A load steps, preventing image corruption. |
Use Scenario: Supplying radar MMICs and ultrasonic transceiver ASICs in front-end ADAS ECUs. IC Role / Device Role / Timing Role: Compact, AEC-Q100-compliant point-of-load regulator replacing discrete buck solutions. Use Value: Wettable flank QFN ensures solder joint integrity under thermal cycling, critical for 15-year automotive service life. |
| Automotive Infotainment | Automotive V2X |
|
Use Scenario: Providing clean 1.2V supply to SoC application processors in head-unit and digital cluster systems. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 3.3V or 5V domain, with EN-controlled sequencing. Use Value: PG signal synchronizes processor boot with stable 1.2V rail, eliminating firmware hang during cold cranking. |
Use Scenario: Powering DSRC/WAVE or C-V2X communication controllers in roadside units and vehicle telematics. IC Role / Device Role / Timing Role: Isolated 1.2V supply with hiccup-mode SCP for resilience against CAN bus-induced transients. Use Value: Short-circuit recovery time <50ms prevents communication dropout during ESD or load dump events. |
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 |
|---|---|---|---|
| TPS82084SILR | 1A, 1.2V fixed, 2.2MHz, QFN-12 (2.5mm×2.5mm), no wettable flanks, non-AEC-Q100 | Targeted at industrial IoT; lacks automotive qualification and PG/OUT_S pins | Select only for non-automotive designs requiring smaller footprint and lower cost. |
| MAX20004AATP+T | 1A, 1.2V fixed, 2.2MHz, 16-pin TQFN (3mm×3mm), AEC-Q100 Grade 1, includes spread-spectrum clocking | Offers lower EMI via frequency dithering but requires external compensation and has higher quiescent current (12µA vs. 0.65mA) | Prefer when board-level EMI testing fails and spread-spectrum is mandated; accept larger BOM and layout complexity. |
Compared with TPS82084SILR and MAX20004AATP+T, MPM3806CGLE-12-AEC1-Z uniquely combines wettable flank inspection capability, integrated output discharge (OUT_S), and FCCM operation - making it the only option qualified for ASIL-B-relevant ADAS sub-systems requiring verified solder joint integrity and controlled shutdown behavior.
Availability
MPM3806CGLE-12-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor nodes, infotainment SoC supplies, and V2X communication controllers requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for MPM3806CGLE-12-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, and global manufacturing partnerships.
The MPM3806C product line delivers fully integrated, AEC-Q100-qualified DC/DC modules targeting space-constrained automotive subsystems - emphasizing thermal robustness, EMI control, and functional safety features like PG and output discharge.
FAQ
What is the maximum allowable input voltage for MPM3806CGLE-12-AEC1-Z?
The absolute maximum input voltage is 6.5V, but the recommended operating range is 2.5V to 5.5V. Exceeding 5.5V risks triggering VIN over-voltage protection at 6.15V, causing immediate shutdown until VIN drops below 6.0V. This limit ensures compatibility with automotive 12V battery-derived rails after LDO or buck pre-regulation.
Does MPM3806CGLE-12-AEC1-Z require external feedback resistors?
No. As a fixed 1.2V output variant, the FB pin (Pin 1) must be left floating - the internal resistor divider is factory-trimmed to deliver 1.2V ±2% across temperature. Adding external resistors would disrupt regulation and void AEC-Q100 validation.
How does the OUT_S pin function during normal operation?
During normal operation (EN = high), OUT_S is internally disconnected from the discharge path and serves only as a remote sense point for output voltage monitoring. Discharge activation occurs only when EN is pulled low or the device shuts down due to fault, enabling controlled rail collapse without external circuitry.
Can MPM3806CGLE-12-AEC1-Z operate in discontinuous conduction mode (DCM)?
No. It operates exclusively in forced continuous conduction mode (FCCM) across all load conditions, maintaining constant 2.4MHz switching frequency. This eliminates mode transitions, ensures predictable EMI behavior, and guarantees minimum output ripple - critical for noise-sensitive imaging and radar applications.
What is the thermal resistance (θJA) of the QFN-15 package on a standard 4-layer PCB?
Measured per JESD51-7 on a 4-layer board, θJA is 65°C/W. On MPS's reference EVB (6.3cm × 6.3cm, 2oz copper), it improves to 53°C/W. These values assume full thermal pad connection to inner ground planes via ≥6 vias - insufficient copper area increases junction temperature by up to 30°C at 1A load.
Is the PG signal compatible with 1.8V logic systems?
Yes. PG is open-drain and can be pulled up to any voltage between 1.8V and VIN (max 5.5V) using a 10kΩ–100kΩ resistor. When active, PG sinks ≤1mA with <0.4V drop, ensuring valid low-level signaling even with 1.8V microcontroller I/O thresholds.
What happens during pre-biased start-up?
When EN rises above 0.9V, the device initiates soft-start regardless of existing VOUT voltage. The internal SS capacitor charges from 0V, ramping VOUT from its pre-biased level upward - preventing reverse current flow and enabling safe power sequencing in multi-rail automotive systems.
MPM3806CGLE-12-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 15-PowerLFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 1.2V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 1A
- Power (Watts):
- 1.2 W
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- -
- Operating Temperature:
- -40°C ~ 150°C
- Efficiency:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 15-QFN (3x4)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3806CGLE-12-AEC1-Z FAQ
1.How can I place an order for MPM3806CGLE-12-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3806CGLE-12-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 MPM3806CGLE-12-AEC1-Z reliable?
The price and inventory of MPM3806CGLE-12-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 MPM3806CGLE-12-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3806CGLE-12-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3806CGLE-12-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3806CGLE-12-AEC1-Z?
MPM3806CGLE-12-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3806CGLE-12-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 MPM3806CGLE-12-AEC1-Z?
For technical support, including MPM3806CGLE-12-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3806CGLE-12-AEC1-Z requirements.
6.How does Aetrix verify that MPM3806CGLE-12-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3806CGLE-12-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 MPM3806CGLE-12-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3806CGLE-12-AEC1-Z?
All MPM3806CGLE-12-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3806CGLE-12-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 MPM3806CGLE-12-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3806CGLE-12-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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