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Monolithic Power Systems Inc. MPM3806GLE-12-AEC1-P
- Part No.:
- MPM3806GLE-12-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3806GLE-12-AEC1-P.pdf
- Description:
- 5.5V, 1A, SYNCHRONOUS STEP-DOWN
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MPM3806GLE-12-AEC1-P from Monolithic Power Systems is a fully integrated, AEC-Q100 Grade 1 qualified synchronous step-down power module with built-in inductor and MOSFETs, delivering up to 1A continuous output current at fixed 1.2V output. It operates from 2.5V–5.5V input, features constant-on-time (COT) control for fast transient response, and includes power good (PG), enable (EN), soft start (SS), and output discharge functionality. It is deployed in automotive ADAS sensors and camera modules requiring compact, reliable, high-efficiency DC/DC conversion.
For engineers reviewing the MPM3806GLE-12-AEC1-P datasheet, MPM3806GLE-12-AEC1-P pinout, MPM3806GLE-12-AEC1-P application, or MPM3806GLE-12-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-15 package, 1.2V ±2% output regulation accuracy over –40°C to +150°C, 2.4MHz switching frequency for EMI optimization, and integrated protections including cycle-by-cycle current limiting, thermal shutdown, and hiccup-mode OVP/SCP.
Technical Context
The MPM3806GLE-12-AEC1-P implements constant-on-time (COT) control with VIN feed-forward, enabling stable 2.4MHz switching across its 2.5V–5.5V input range and maintaining tight line/load regulation. Its internal architecture integrates a 75mΩ high-side and 45mΩ low-side MOSFET pair, a 470nH inductor, and a complete compensation network - eliminating external loop components.
It supports automotive-grade operation via AEC-Q100 Grade 1 qualification (–40°C to +150°C TJ), includes an open-drain PG signal referenced to 90% of FB threshold, and uses Advanced Asynchronous Modulation (AAM) with zero-current detection (50mA ZCD threshold) to sustain DCM efficiency under light loads while drawing only 21µA quiescent current in sleep mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% (1.176V–1.224V) over full temperature and load range - ensures stable core supply for automotive SoCs and image sensors. |
| Continuous Output Current | 1A - sufficient for powering dual-core microcontrollers, CMOS image sensors, or radar transceivers in space-constrained automotive modules. |
| Input Voltage Range | 2.5V to 5.5V - compatible with 3.3V and 5V automotive rails, including post-LDO battery domains and USB-powered subsystems. |
| Switching Frequency | 2.4MHz (±10%) - enables use of small external capacitors and reduces EMI fundamental energy above AM band, easing EMC compliance. |
| Quiescent Current | 21µA at TJ = 25°C - extends battery runtime in always-on ADAS vision systems during vehicle sleep mode. |
| Thermal Shutdown Threshold | 170°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without premature shutdown. |
| Feedback Accuracy | ±1% (0.594V–0.606V at TJ = 25°C) - directly determines output voltage precision; fixed-output version bypasses FB pin but retains same reference tolerance. |
Pinout & Package
MPM3806GLE-12-AEC1-P is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm), optimized for automated optical inspection (AOI) and robust solder joint reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference input | Internally tied to 0.6V reference; floated in fixed-output configuration - eliminates external resistor divider and saves board area. |
| 2 PG | Open-drain power good indicator | Pulled high when VOUT ≥ 90% of nominal (1.08V); pulled low when ≤ 85% (1.02V) - enables system-level power sequencing and fault monitoring. |
| 3 VIN | Main input supply | Accepts 2.5V–5.5V; requires local 10µF ceramic decoupling - supports direct connection to automotive 3.3V or 5V domain rails. |
| 4–6 SW | Switch node | Internal connection to high-side MOSFET drain and integrated inductor - must be routed with minimal loop area to reduce EMI and switching losses. |
| 7–9 OUT | Power output | Delivers regulated 1.2V; connects to load and output capacitor (e.g., 22µF X5R) - shared pins reduce trace inductance and improve current sharing. |
| 10–11 GND | Power ground | Low-impedance return path for input/output currents; requires large copper pour and multiple vias to thermal pad - critical for thermal performance and noise immunity. |
| 12 EN | Enable control | Active-high logic input (0.9V turn-on, 0.65V turn-off); internal 2MΩ pull-down - allows MCU-controlled power gating and cold-boot isolation. |
| 13 SS | Soft-start timing | Accepts ≥1nF capacitor to control VOUT ramp rate and limit inrush current - prevents input rail sag during startup in multi-rail systems. |
| 14 OUT_S | Output sense & discharge path | Senses VOUT and provides 150Ω discharge path to GND on shutdown - ensures rapid output collapse for safe state transitions in safety-critical systems. |
| 15 DNC | No-connect terminal | Internally tied to SW; must remain unconnected and un-routed - avoids unintended parasitic coupling or solder bridging. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +150°C junction operation, meeting automotive reliability and lifetime requirements for front-end sensor modules. |
| Integrated 470nH power inductor | Eliminates external magnetics, reduces BOM count by ≥4 components, and guarantees consistent saturation current (5.4A) and DCR (25–65mΩ). |
| MeshConnect™ flip-chip packaging | Reduces package inductance and improves thermal resistance (θJC = 10°C/W on EVM), enabling higher power density without external heatsinking. |
| Wettable flank leads | Enables automated solder-joint inspection (AOI) for zero-defect manufacturing in Tier-1 automotive production lines. |
| Hiccup-mode overvoltage/short-circuit protection | Auto-retries after fault clearance - maintains system availability during transient overloads without requiring manual reset or firmware intervention. |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
Use Scenario: Powering high-resolution CMOS image sensors in rear-view and surround-view cameras. IC Role / Device Role / Timing Role: Primary 1.2V core supply regulator with fast load-transient response to handle sensor pixel readout bursts. Use Value: Delivers <1% output deviation during 100mA–1A step loads, preventing image corruption or frame loss in real-time video streams. |
Use Scenario: Supplying radar MMICs and ultrasonic transducer drivers in lane-departure warning systems. IC Role / Device Role / Timing Role: Compact, thermally robust DC/DC converter mounted directly on sensor PCB near RF front-end. Use Value: Maintains stable 1.2V under 150°C ambient via 10°C/W θJC, avoiding thermal derating and ensuring consistent sensor accuracy. |
| Automotive Infotainment Systems | Automotive V2X Modules |
Use Scenario: Generating 1.2V for application processors and GPU cores in head-unit SoCs. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 3.3V or 5V main domain, supporting dynamic voltage scaling. Use Value: Achieves >90% efficiency at 500mA load with 2.4MHz switching, minimizing heat buildup inside sealed infotainment enclosures. |
Use Scenario: Providing clean, low-noise 1.2V supply for DSRC/WAVE or C-V2X baseband processors in roadside units. IC Role / Device Role / Timing Role: EMI-optimized point-of-load regulator with integrated filtering and PG signaling for functional safety diagnostics. Use Value: Meets CISPR-25 Class 5 radiated emissions limits without additional shielding, reducing system cost and weight. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TPS82084 | 0.8V fixed output, 0.6A rating, 2.2MHz fSW, no wettable flank, non-AEC-Q100 | Limited to lower-current microcontrollers; lacks automotive qualification and PG signal | Select only for non-automotive portable designs where 1.2V and 1A are not required. |
| Analog Devices LTM8071 | 1.2V adjustable (external resistors), 1.2A rating, 2.25MHz fSW, AEC-Q100 Grade 1, larger 6.25mm × 9mm package | Requires external feedback resistors and compensation; occupies 2.3× more board area than MPM3806 | Prefer when higher output current margin or programmable soft-start is needed, accepting size penalty. |
Compared with TPS82084 and LTM8071, the MPM3806GLE-12-AEC1-P uniquely combines fixed 1.2V output, 1A capability, wettable flank QFN-15 packaging, and integrated PG/SS/OUT_S in a single AEC-Q100 Grade 1 device - optimizing for space, qualification, and functional integration in camera and ADAS edge nodes.
Availability
MPM3806GLE-12-AEC1-P is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor nodes, infotainment SoC supplies, and V2X communication subsystems requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for MPM3806GLE-12-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 power management ICs and modules, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MPM3806 product line delivers fully integrated, AEC-Q100-qualified power modules targeting space-constrained, thermally demanding automotive subsystems - specifically engineered for ADAS, camera, and infotainment applications requiring minimal external components and guaranteed reliability.
FAQ
What is the purpose of the OUT_S pin on the MPM3806GLE-12-AEC1-P?
The OUT_S pin serves dual functions: it senses the output voltage for internal regulation feedback and provides a dedicated 150Ω resistive discharge path from VOUT to GND during shutdown. This ensures rapid, controlled collapse of the 1.2V rail - critical for safe state transitions in ASIL-B/C automotive systems where residual voltage could cause undefined behavior.
Can the MPM3806GLE-12-AEC1-P operate with input voltage below 2.5V?
No. The device has a hard UVLO threshold of 2.45V (rising) and will not start switching until VIN exceeds this level. Below 2.3V, the internal circuitry remains disabled, and the PG signal stays low. Operation below 2.5V violates the recommended operating conditions and risks unstable regulation or failure to maintain 1.2V output.
How does the AAM mode improve light-load efficiency?
AAM mode reduces switching frequency and disables non-essential blocks (e.g., error amplifier) under light loads, cutting quiescent current to 21µA. It uses zero-current detection (50mA threshold) to terminate low-side conduction early, sustaining discontinuous conduction mode (DCM) and minimizing diode reverse-recovery losses - boosting efficiency to >85% at 1mA load.
Is external compensation required for stability?
No. The MPM3806GLE-12-AEC1-P integrates a complete Type-II compensation network internally, including 25kΩ resistor and 25pF capacitor. No external compensation components are needed - simplifying layout, reducing BOM count, and guaranteeing stability across all valid input/output conditions per the datasheet.
What is the maximum allowable thermal resistance for the PCB layout?
For continuous 1A operation at TA = 105°C, the total θJA must not exceed 45°C/W to keep TJ ≤ 150°C. On a 4-layer 2oz copper board per JESD51-7, the MPM3806's rated θJA is 65°C/W - so adequate copper area, thermal vias under the exposed pad, and airflow are essential to meet automotive thermal targets.
Does the PG signal require an external pull-up resistor?
Yes. PG is an open-drain output and must be pulled up to a logic-compatible voltage (e.g., 3.3V or 5V) using an external resistor (typically 10kΩ–100kΩ). Without pull-up, PG cannot assert high and will remain floating, preventing proper power-good assertion to host controllers or PMIC sequencers.
How is the 1.2V output voltage set in this variant?
The "-12" suffix indicates factory-trimmed fixed 1.2V output. Internal resistor dividers are laser-trimmed during test; the FB pin is left unconnected (floated) in application. Output regulation relies solely on the internal 0.6V reference and trimmed feedback ratio - achieving ±2% accuracy without external components.
MPM3806GLE-12-AEC1-P 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 15-QFN (3x4)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3806GLE-12-AEC1-P FAQ
1.How can I place an order for MPM3806GLE-12-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3806GLE-12-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 MPM3806GLE-12-AEC1-P reliable?
The price and inventory of MPM3806GLE-12-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 MPM3806GLE-12-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPM3806GLE-12-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3806GLE-12-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3806GLE-12-AEC1-P?
MPM3806GLE-12-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3806GLE-12-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 MPM3806GLE-12-AEC1-P?
For technical support, including MPM3806GLE-12-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3806GLE-12-AEC1-P requirements.
6.How does Aetrix verify that MPM3806GLE-12-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPM3806GLE-12-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 MPM3806GLE-12-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPM3806GLE-12-AEC1-P?
All MPM3806GLE-12-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPM3806GLE-12-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 MPM3806GLE-12-AEC1-P part is unused and in its original packaging.
Return procedure for MPM3806GLE-12-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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