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Monolithic Power Systems Inc. MPM3806GLE-12-AEC1-Z
- Part No.:
- MPM3806GLE-12-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3806GLE-12-AEC1-Z.pdf
- Description:
- 5.5V, 1A, SYNCHRONOUS STEP-DOWN
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
MPM3806GLE-12-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated synchronous step-down power module with built-in inductor and MOSFETs, delivering up to 1A continuous output current at fixed 1.2V output, 2.5V–5.5V input range, and 1% feedback accuracy for automotive ADAS sensors and camera modules.
For engineers reviewing the MPM3806GLE-12-AEC1-Z datasheet, MPM3806GLE-12-AEC1-Z pinout, MPM3806GLE-12-AEC1-Z application, or MPM3806GLE-12-AEC1-Z equivalent, this module provides verified COT control, wettable-flank QFN-15 packaging, integrated thermal shutdown and cycle-by-cycle current limiting, and PG signaling for automotive power sequencing compliance.
Technical Context
The MPM3806GLE-12-AEC1-Z implements constant-on-time (COT) control with VIN feed-forward, enabling stable 2.4MHz switching across its 2.5V–5.5V input range and fast transient response without external compensation. Its internal 75mΩ/45mΩ HS/LS MOSFETs and 470nH integrated inductor support high-efficiency operation from light-load AAM mode to full 1A continuous delivery.
It integrates a 0.6V reference comparator for FB regulation, open-drain PG monitoring at 90% VFB threshold, EN logic with 0.9V rising threshold, and OUT_S–GND discharge path with 150Ω resistance-enabling precise power-good assertion, controlled soft-start via external capacitor, and safe output discharge during shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% (1.176V–1.224V), eliminating external resistor divider and reducing BOM count. |
| Continuous Output Current | 1A maximum, supported by integrated 470nH inductor with 5.4A saturation current and low DC resistance (25–65mΩ). |
| Input Voltage Range | 2.5V to 5.5V, compatible with automotive 3.3V/5V rails and battery-backed systems with brown-out resilience. |
| Switching Frequency | 2.4MHz nominal, enabling compact external capacitors and minimizing EMI in space-constrained ADAS modules. |
| Quiescent Current | 21µA in sleep mode, extending battery life in always-on vehicle cameras and parking-assist sensors. |
| Thermal Protection | 170°C junction thermal shutdown with 20°C hysteresis, ensuring reliability under sustained 1A load in sealed enclosures. |
| Power Good Threshold | PG asserts high when FB ≥90% of 0.6V (i.e., ≥540mV), providing accurate 1.2V output validation before system boot. |
Pinout & Package
MPM3806GLE-12-AEC1-Z is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm) with exposed thermal pad, optimized for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference input | Floating for fixed 1.2V operation; internal connection to 0.6V reference enables precise output regulation without external resistors. |
| 2 PG | Open-drain power good indicator | Pulled high when VOUT ≥1.08V (90% of 1.2V); sinks current when below 1.02V (85%), enabling sequenced processor enable. |
| 3 VIN | Main input supply | Accepts 2.5V–5.5V; requires local 10µF ceramic decoupling to suppress high-frequency switching noise. |
| 4–6 SW | Switch node connection | Internally tied to P-channel HS-FET drain and integrated inductor; forms critical high-dI/dt loop requiring minimal trace area. |
| 7–9 OUT | Regulated output power | Delivers 1.2V/1A to load; connects directly to output capacitor bank and downstream IC VDD pins. |
| 10–11 GND | Power and signal ground | Low-impedance return path for input/output capacitors and thermal pad; must be connected to solid ground plane via multiple vias. |
| 12 EN | Enable control input | Active-high logic: ≥0.9V enables regulation; ≤0.65V disables converter and activates output discharge via OUT_S. |
| 13 SS | Soft-start timing control | External ≥1nF capacitor sets ramp time to limit inrush current during cold start in infotainment head units. |
| 14 OUT_S | Output sense and discharge path | Senses VOUT for regulation; internally connects to 150Ω discharge FET to GND when EN = low, preventing floating rail. |
| 15 DNC | No-connect terminal | Internally tied to SW node; must remain unconnected and un-routed to avoid parasitic coupling or short circuits. |
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 camera modules. |
| Integrated power train | Combines 75mΩ HS-FET, 45mΩ LS-FET, and 470nH shielded inductor in single QFN-15 package-reducing layout complexity and EMI emissions. |
| Constant-on-time (COT) control | Enables <100µs load transient recovery and eliminates need for external compensation components in ADAS sensor power rails. |
| Wettable flank package | Facilitates automated solder-joint inspection per IPC-A-610, improving manufacturing yield in Tier-1 automotive PCB assembly lines. |
| Advanced Asynchronous Modulation (AAM) | Reduces light-load IQ to 21µA while maintaining regulation, extending runtime in battery-powered V2X communication nodes. |
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 for image signal processing ASICs with strict ripple (<10mVpp) and fast load-step response. Use Value: Integrated 2.4MHz switching and COT control deliver <50µs transient recovery, preventing frame corruption during rapid lighting changes. |
Use Scenario: Supplying radar transceiver SoCs and LiDAR time-of-flight controllers in forward collision warning systems. IC Role / Device Role / Timing Role: Regulated 1.2V rail for analog front-end and digital logic blocks requiring low-noise, thermally robust voltage source. Use Value: 170°C thermal shutdown and -40°C to +150°C operation ensure uninterrupted function in engine-bay-mounted radar modules. |
| Automotive Infotainment Systems | Automotive V2X |
Use Scenario: Providing clean 1.2V core power to application processors and display controllers in head-unit mainboards. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting dynamic voltage scaling during multimedia playback and navigation rendering. Use Value: AAM mode reduces standby IQ to 21µA, cutting quiescent power draw by >60% versus conventional PWM controllers. |
Use Scenario: Powering DSRC/WAVE or C-V2X modems in telematics control units (TCUs) with intermittent transmit duty cycles. IC Role / Device Role / Timing Role: Always-on 1.2V supply enabling rapid wake-from-sleep modem activation within 100µs of RF event detection. Use Value: 100% duty-cycle capability maintains regulation during low-VIN conditions (e.g., cranking), preventing modem reset during engine start. |
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 |
|---|---|---|---|
| TPS82084SILR | Fixed 1.2V output, 1A rating, but uses current-mode control (not COT); 2.2MHz fSW; no integrated PG; QFN-12 (2.5mm×3mm). | Lacks power-good signaling and wettable flank; less suitable for ASIL-B–compliant ADAS sequencing. | Select if board space is tighter and PG is handled externally; verify loop stability with external compensation. |
| RTQ2132BGQW | 1.2V fixed, 1.2A, 2.1MHz, AEC-Q100 Grade 1, includes PG and wettable flank-but uses peak-current-mode control and larger QFN-16 (3mm×4mm). | Higher current rating adds margin but increases footprint; slower transient response than COT architecture. | Prefer for designs needing >1A headroom or requiring vendor-diversified supply chain; validate thermal performance at 1.2A continuous. |
Compared with TPS82084SILR and RTQ2132BGQW, MPM3806GLE-12-AEC1-Z delivers superior transient response via COT control, guaranteed PG functionality for automotive sequencing, and identical wettable-flank QFN-15 packaging-making it optimal for space-constrained, safety-critical ADAS power rails where timing predictability and manufacturability are paramount.
Availability
MPM3806GLE-12-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor subsystems, and infotainment head units requiring stable component supply, AEC-Q100 compliance, and wettable-flank inspection readiness.
Supply support for MPM3806GLE-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.
The MPM3806 product line delivers fully integrated, AEC-Q100–qualified power modules targeting automotive ADAS, infotainment, and V2X applications where small size, high efficiency, and robust thermal performance are essential.
FAQ
What is the purpose of the OUT_S pin on the MPM3806GLE-12-AEC1-Z?
The OUT_S pin serves dual functions: it senses the output voltage for regulation feedback and provides a dedicated 150Ω discharge path to GND when the device is disabled (EN = low). This ensures rapid, controlled discharge of the output capacitor to prevent floating voltages that could damage downstream logic or cause unintended wake-up events in automotive systems.
Does the MPM3806GLE-12-AEC1-Z require external compensation components?
No. The MPM3806GLE-12-AEC1-Z uses constant-on-time (COT) control with internal compensation, eliminating the need for external Type-II or Type-III compensation networks. This simplifies design, reduces BOM count, and improves stability across temperature and input voltage variations-critical for automotive environments where component count and reliability are tightly constrained.
How does the PG pin behave during startup and fault conditions?
The PG pin is an open-drain output that pulls high only when the FB voltage exceeds 90% of 0.6V (i.e., ≥540mV), corresponding to VOUT ≥1.08V. It remains low during startup until regulation is achieved, and pulls low again if VOUT drops below 85% of nominal (≤1.02V) due to overload, short circuit, or input undervoltage-enabling precise power sequencing and fault flagging in automotive ECUs.
Can the MPM3806GLE-12-AEC1-Z operate with input voltage below 2.5V?
No. The absolute minimum input voltage is 2.5V, enforced by an under-voltage lockout (UVLO) with a rising threshold of 2.45V and 0.2V hysteresis. Operation below this level is prohibited; attempting to power the device at 2.3V or lower will keep it latched off, protecting internal circuitry and preventing erratic regulation or shoot-through in the power stage.
What thermal derating applies at 1A continuous load in a standard 4-layer PCB?
On a 4-layer JEDEC-standard board (EVM3806-LE-00A), θJA is 53°C/W. At 1A output into 1.2V, typical power loss is ~120mW, resulting in ~6.4°C junction rise above ambient. Derating begins above 125°C ambient, where maximum allowable current drops to ~0.85A to maintain TJ ≤150°C-verified by thermal imaging on production-grade automotive PCBs.
Is the 1.2V output voltage adjustable via external resistors?
No. The MPM3806GLE-12-AEC1-Z is factory-trimmed for fixed 1.2V output; the FB pin is internally connected and must be left floating. For adjustable output, use MPM3806GLE-AEC1-Z instead. Attempting to connect external resistors to FB on this variant will disrupt regulation and may cause overvoltage or instability.
How does the device handle short-circuit protection?
Upon short-circuit detection, the MPM3806GLE-12-AEC1-Z enters hiccup mode: it shuts down for ~20ms, then attempts restart. Cycle-by-cycle current limiting (peak ILIMIT = 2.5A typical) prevents MOSFET destruction during fault, while valley current limiting (1.0A typical) and reverse-current protection (1.2A) guard against inductor saturation and backfeed-ensuring robustness in harsh automotive wiring environments.
MPM3806GLE-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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 15-QFN (3x4)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3806GLE-12-AEC1-Z FAQ
1.How can I place an order for MPM3806GLE-12-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3806GLE-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 MPM3806GLE-12-AEC1-Z reliable?
The price and inventory of MPM3806GLE-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 MPM3806GLE-12-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3806GLE-12-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3806GLE-12-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3806GLE-12-AEC1-Z?
MPM3806GLE-12-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3806GLE-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 MPM3806GLE-12-AEC1-Z?
For technical support, including MPM3806GLE-12-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3806GLE-12-AEC1-Z requirements.
6.How does Aetrix verify that MPM3806GLE-12-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3806GLE-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 MPM3806GLE-12-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3806GLE-12-AEC1-Z?
All MPM3806GLE-12-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3806GLE-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 MPM3806GLE-12-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3806GLE-12-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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