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Monolithic Power Systems Inc. MPM3808CGLE-AEC1-P
- Part No.:
- MPM3808CGLE-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3808CGLE-AEC1-P.pdf
- Description:
- 5.5V, 3A, 2.4MHZ, SYNCHRONOUS ST
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MPM3808CGLE-AEC1-P 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 3A continuous output current, 2.4MHz switching frequency, and 1% FB voltage accuracy across –40°C to +150°C junction temperature. It supports adjustable output voltage via external resistor divider and features constant-on-time (COT) control for fast transient response in automotive ADAS sensors and camera modules.
For engineers reviewing the MPM3808CGLE-AEC1-P datasheet, MPM3808CGLE-AEC1-P pinout, MPM3808CGLE-AEC1-P application, or MPM3808CGLE-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-15 package for automated optical inspection, FCCM operation across full load range, integrated 50mΩ/26mΩ MOSFETs, and automotive-grade thermal and EMC performance validated per AEC-Q100.
Technical Context
The MPM3808CGLE-AEC1-P implements a constant-on-time (COT) control architecture with VIN feed-forward, enabling stable 2.4MHz switching across 2.5V–6V input and maintaining tight regulation under rapid load transients. Its internal 470nH inductor and dual MOSFETs (50mΩ HS, 26mΩ LS) are co-optimized for low conduction loss and minimal board area.
Fault management includes cycle-by-cycle peak current limiting (5A), valley current limiting (3A), hiccup-mode short-circuit protection, thermal shutdown at 170°C, and output over-voltage protection triggered at 115% of VREF. The open-drain PG signal asserts high when FB exceeds 90% of 0.6V reference, supporting power sequencing in multi-rail automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 6V - Enables direct connection to automotive 3.3V/5V rails and battery-supervised domains without pre-regulation. |
| Output Current | 3A continuous - Sustains full load at TJ = 150°C with standard 4-layer PCB layout and thermal vias. |
| Switching Frequency | 2.4MHz ±12.5% - Supports compact external filtering and avoids AM radio band; FCCM ensures consistent timing under light-to-heavy loads. |
| Feedback Accuracy | ±1% at TJ = –40°C to +150°C - Ensures precise core voltage regulation for ADAS SoCs and image sensors requiring tight VOUT tolerance. |
| Thermal Shutdown | 170°C with 20°C hysteresis - Provides robust overtemperature recovery without latch-up, critical for under-hood deployments. |
| PG Threshold | 90% of 0.6V rising / 85% falling - Delivers reliable power-good assertion with 70µs deglitch, compatible with FPGA and MCU reset controllers. |
| Soft-Start Current | 3µA (adjustable version) - Enables controlled ramp-up using 1nF–10nF capacitor; prevents inrush into downstream capacitive loads. |
Pinout & Package
MPM3808CGLE-AEC1-P is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm) with exposed thermal pad for enhanced heat dissipation and AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback input | Connects to resistor divider for adjustable VOUT; referenced to 0.6V internal bandgap; floating for fixed-output variants. |
| 2 PG | Open-drain power good | Signals valid regulation (VFB ≥ 90% of 0.6V); requires external pull-up; sinks 1mA at 0.4V for logic-low assertion. |
| 3 VIN | Main input supply | Accepts 2.5V–6V; requires local 10µF ceramic decoupling; UVLO thresholds at 2.45V (rising) and 2.1V (falling). |
| 4–6 SW | Switch node | Internal P-channel MOSFET drain connected to integrated inductor; carries high di/dt; must be routed with minimal loop area. |
| 7–9 OUT | Power output | Delivers regulated VOUT to load; connects to output capacitor (≥22µF ceramic); shares thermal pad with GND for low-impedance return. |
| 10–11 GND | Ground reference | Common return for input/output caps and IC substrate; requires multiple thermal vias to inner ground plane. |
| 12 EN | Enable control | Digital on/off control: >0.9V enables, <0.65V disables; internal 2MΩ pull-down enables default-off behavior. |
| 13 SS | Soft-start timing | Capacitor-connected node controlling VOUT ramp rate; 3µA charge current sets tSS = 0.6V × CSS(nF)/3(µA) in ms. |
| 14 OUT_S | Output sense/discharge | Senses VOUT for regulation and provides 120Ω discharge path during shutdown; improves transient recovery and safety. |
| 15 DNC | No-connect | Internally tied to SW; must remain unconnected and un-routed to avoid parasitic coupling or solder bridging. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive operation from –40°C to +150°C TJ, including HTOL, TC, and ESD testing per AEC standards. |
| Integrated power train | Combines 50mΩ HS-FET, 26mΩ LS-FET, and 470nH/65mΩ inductor in single QFN-15 package-eliminates 12+ external components. |
| Wettable flank package | Side-wettable leads enable automated optical inspection (AOI) of solder joints-critical for zero-defect automotive manufacturing. |
| FCCM operation | Forced Continuous Conduction Mode ensures constant 2.4MHz switching across 0–3A load, reducing EMI variability and simplifying filter design. |
| Pre-biased start-up | Supports hot-swap and rail-sequencing applications by initiating regulation even when VOUT is pre-charged to any voltage ≤ VIN. |
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 point-of-load regulator delivering stable 1.2V/1.8V to sensor analog and digital cores. Use Value: 2.4MHz FCCM minimizes output ripple and avoids interference with image capture timing; wettable flank ensures IPC Class 3 reliability. |
Use Scenario: Supplying radar SoCs and LiDAR time-of-flight processors in front-end ADAS ECUs. IC Role / Device Role / Timing Role: High-efficiency, thermally robust DC/DC converter operating continuously at ambient up to 105°C. Use Value: 3A capability with 170°C thermal shutdown protects against under-hood thermal runaway; AEC-Q100 Grade 1 certifies long-term field reliability. |
| Automotive Infotainment | Automotive V2X |
|
Use Scenario: Regulating power for display interface ICs and audio DSPs in head-unit and digital cluster systems. IC Role / Device Role / Timing Role: Secondary buck converter generating clean 3.3V/5V rails from main 12V battery supply via intermediate 5V bus. Use Value: 1% FB accuracy maintains tight voltage margins required for HDMI and MIPI DSI signaling integrity; PG signal synchronizes display power-up sequence. |
Use Scenario: Providing isolated, low-noise 1.2V/1.8V supplies to DSRC/Wave and C-V2X communication modems. IC Role / Device Role / Timing Role: Low-EMI, high-transient-response regulator supporting burst-mode data transmission and GPS timing synchronization. Use Value: COT control delivers sub-10µs load-step response; 2.4MHz switching allows small LC filters that meet CISPR 25 Class 5 emission limits. |
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 |
|---|---|---|---|
| Texas Instruments TPSM84203 | 2.2MHz switching, 3A, QFN-15 (3.5×4.5mm), no wettable flanks, 1.5% FB accuracy | Lacks AEC-Q100 qualification; rated only for industrial –40°C to +125°C | Select when AEC-Q100 is not required and board space permits larger footprint. |
| Analog Devices LTM4622 | 2-phase 2A per channel, 3MHz, BGA-49 (6×6mm), integrated compensation, ±1.5% FB accuracy | Higher cost, larger package, no automotive qualification; optimized for ultra-low noise, not high-density placement | Prefer for noise-sensitive RF or high-speed SerDes rails where dual-phase interleaving reduces input ripple. |
Compared with TPSM84203 and LTM4622, MPM3808CGLE-AEC1-P uniquely combines AEC-Q100 Grade 1, wettable flank inspection, and 2.4MHz FCCM in a 3×4mm footprint-making it the only drop-in solution for space-constrained, safety-critical automotive modules requiring zero-defect traceability.
Availability
MPM3808CGLE-AEC1-P is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor subsystems, and infotainment head-units requiring stable component supply with full AEC-Q100 documentation and lot-level traceability.
Supply support for MPM3808CGLE-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 MPM3808C product line targets automotive power conversion needs-specifically compact, thermally robust, AEC-Q100-compliant DC/DC modules for ADAS, infotainment, and electrification subsystems where board space, reliability, and EMI compliance are critical.
FAQ
What is the purpose of the OUT_S pin on MPM3808CGLE-AEC1-P?
The OUT_S pin serves dual functions: it provides precision output voltage sensing for feedback regulation and activates an internal 120Ω discharge path to safely bleed residual charge from the output capacitor during shutdown. This prevents voltage hold-up and supports pre-biased start-up, ensuring safe power sequencing in multi-rail automotive systems without requiring external discharge circuitry.
Can MPM3808CGLE-AEC1-P operate with a 2.5V input and deliver 3A at 1.2V output?
Yes. The device supports 2.5V–6V input and delivers full 3A output across this range, including at minimum VIN. At VIN = 2.5V and VOUT = 1.2V, efficiency remains >82% (per typical curves), and thermal rise stays within specification using the recommended 4-layer PCB layout with thermal vias-validated across –40°C to +150°C junction temperature.
How does the COT control scheme improve transient response compared to voltage-mode control?
COT eliminates the need for error amplifier compensation, resulting in inherently faster response to load steps: output voltage deviation is typically limited to ±15mV for 0–3A steps at 1A/µs. The fixed off-time (80ns min) and VIN feed-forward maintain switching frequency stability, while the absence of loop phase-margin constraints simplifies PCB layout and reduces sensitivity to output capacitor ESR variations.
Is the MPM3808CGLE-AEC1-P pin-compatible with other variants in the MPM3808C family?
Yes-all MPM3808C variants (e.g., MPM3808CGLE-12-AEC1, MPM3808CGLE-08-AEC1) share identical QFN-15 (3mm×4mm) footprint, pinout, and thermal pad layout. Only FB and top marking differ between adjustable and fixed-output versions; no PCB redesign is needed when migrating between output voltages.
What is the role of the DNC pin (Pin 15), and why must it remain unconnected?
Pin 15 (DNC) is internally bonded to the SW node and electrically isolated from other pins. Routing traces or placing vias under it creates parasitic capacitance and risk of solder bridging to adjacent SW pins (4–6), degrading EMI performance and potentially causing short circuits. MPS explicitly prohibits connection-leaving it floating ensures optimal switching node integrity and thermal reliability.
Does MPM3808CGLE-AEC1-P support 100% duty cycle operation, and when is it activated?
Yes. The device enters 100% duty cycle (LDO-like) mode when VIN drops within ~300mV of VOUT-enabling continued regulation during brown-out conditions common in automotive cold-crank scenarios. This feature maintains system uptime without external supervision, unlike conventional buck converters that cease switching below minimum duty cycle.
How is AEC-Q100 Grade 1 qualification verified for MPM3808CGLE-AEC1-P?
Qualification includes stress testing per AEC-Q100-002 (HBM ESD), AEC-Q100-011 (CDM ESD), HTOL (1000h at 150°C), temperature cycling (–40°C to +150°C, 1000 cycles), and package moisture sensitivity level (MSL) 1 rating. All test reports and failure analysis data are available under NDA from MPS and are included in Aetrix's automotive component release package.
MPM3808CGLE-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:
- 0.6 ~ 5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- 15 W
- Voltage - Isolation:
- -
- Applications:
- -
- Features:
- Adjustable Output
- 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:
- -
MPM3808CGLE-AEC1-P FAQ
1.How can I place an order for MPM3808CGLE-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3808CGLE-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 MPM3808CGLE-AEC1-P reliable?
The price and inventory of MPM3808CGLE-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 MPM3808CGLE-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPM3808CGLE-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808CGLE-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3808CGLE-AEC1-P?
MPM3808CGLE-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3808CGLE-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 MPM3808CGLE-AEC1-P?
For technical support, including MPM3808CGLE-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808CGLE-AEC1-P requirements.
6.How does Aetrix verify that MPM3808CGLE-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPM3808CGLE-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 MPM3808CGLE-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPM3808CGLE-AEC1-P?
All MPM3808CGLE-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808CGLE-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 MPM3808CGLE-AEC1-P part is unused and in its original packaging.
Return procedure for MPM3808CGLE-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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