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Monolithic Power Systems Inc. MPM3808CGLE-12-AEC1-P
- Part No.:
- MPM3808CGLE-12-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3808CGLE-12-AEC1-P.pdf
- Description:
- 5.5V, 3A, 2.4MHZ, SYNCHRONOUS ST
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MPM3808CGLE-12-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 at fixed 1.2V with ±2% regulation accuracy over -40°C to +150°C junction temperature, 2.5V–6V input range, and 2.4MHz switching frequency for compact automotive power rails.
For engineers reviewing the MPM3808CGLE-12-AEC1-P datasheet, MPM3808CGLE-12-AEC1-P pinout, MPM3808CGLE-12-AEC1-P application, or MPM3808CGLE-12-AEC1-P equivalent, this page delivers verified electrical specs, QFN-15 wettable flank package layout, automotive-grade thermal and protection behavior, and direct substitution guidance for ADAS camera and infotainment power design.
Technical Context
The MPM3808CGLE-12-AEC1-P uses constant-on-time (COT) control with VIN feed-forward to maintain stable 2.4MHz switching across 2.5V–6V input and full load range, enabling fast transient response without external compensation. Its FCCM operation eliminates mode transitions and minimizes output ripple under light and heavy loads.
It integrates 50mΩ high-side and 26mΩ low-side MOSFETs with a 470nH inductor (typ), supporting 100% duty cycle for low-dropout operation. Protection includes cycle-by-cycle peak/valley current limiting (5A/3A), thermal shutdown at 170°C, hiccup-mode short-circuit recovery, and output over-voltage regulation at 115% of VREF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2V ±2% (1.176V–1.224V) over full temperature and load range - enables precise core rail regulation for automotive SoCs and image sensors. |
| Max Output Current | 3A continuous - supports high-current camera ISPs and radar pre-processing units without external heatsinking. |
| Input Voltage Range | 2.5V to 6V - compatible with 3.3V, 5V, and automotive battery-supervised rails including cold-crank down to 2.5V. |
| Switching Frequency | 2.4MHz (±12.5%) - allows use of small external capacitors and avoids AM radio band interference. |
| Feedback Accuracy | ±1% at TJ = 25°C; ±1.5% over -40°C to +150°C - ensures stable voltage margining for safety-critical ADAS functions. |
| Thermal Shutdown | 170°C with 20°C hysteresis - protects against sustained overload while permitting brief 150°C junction operation per AEC-Q100 Grade 1. |
| PG Threshold | Rising at 90% of internal 0.6V reference (0.54V), falling at 85% (0.51V) - provides robust power sequencing signal with 70µs deglitching. |
Pinout & Package
MPM3808CGLE-12-AEC1-P 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 profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference input | Internally tied to fixed 1.2V divider; must be left floating - no external resistor network required. |
| 2 PG | Open-drain power good indicator | Pulled high when VOUT ≥ 1.08V; pulled low when VOUT ≤ 1.02V - used for system power sequencing and fault detection. |
| 3 VIN | Main input supply | Accepts 2.5V–6V; requires local 10µF ceramic decoupling - connects directly to vehicle power distribution net. |
| 4–6 SW | Switch node | Internal connection to high-side MOSFET drain and integrated inductor - forms critical high-di/dt loop requiring tight layout. |
| 7–9 OUT | Regulated output | Delivers 1.2V/3A; connects to load and output capacitor - shared pins reduce impedance and improve current sharing. |
| 10–11 GND | Power ground | Low-impedance return path for input/output caps and thermal pad - must connect via multiple vias to inner ground plane. |
| 12 EN | Enable control | Active-high logic: >0.9V enables, <0.65V disables; internal 2MΩ pull-down - supports microcontroller-controlled power-up timing. |
| 13 SS | Soft-start timing | Connects to external capacitor (min 1nF); charges at 3µA - controls VOUT ramp rate to prevent inrush into downstream capacitance. |
| 14 OUT_S | Output sense and discharge path | Monitors VOUT for regulation; activates 120Ω internal discharge FET during shutdown - ensures rapid rail collapse for safe reset. |
| 15 DNC | No-connect | Internally tied to SW node - 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 -40°C to +150°C operation with full electrical test coverage - meets automotive functional safety requirements for non-safety-critical ECUs. |
| Integrated 470nH inductor + MOSFETs | Eliminates external magnetics and reduces BOM count by ≥6 components - enables 25mm² total solution size including all passives. |
| Wettable flank QFN-15 package | Enables automated solder joint inspection on bottom-side pins - improves manufacturing yield and field-reliability in vibration-prone automotive environments. |
| FCCM across full load range | Maintains constant 2.4MHz switching from 0A to 3A - simplifies EMI filter design and avoids audible noise in infotainment systems. |
| Pre-biased start-up support | Starts cleanly even when output is pre-charged - essential for hot-swap and multi-rail sequencing in camera modules with standby bias. |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
Use Scenario: Powering high-resolution CMOS image sensors and ISP processors in surround-view and driver-monitoring cameras. IC Role / Device Role / Timing Role: Primary 1.2V core rail regulator delivering clean, low-noise power with fast transient response to handle burst pixel readout currents. Use Value: Maintains <±1.5% output regulation during 0–3A load steps at 1A/µs, preventing image corruption or frame loss under dynamic lighting conditions. |
Use Scenario: Supplying radar transceiver MMICs and lidar time-of-flight controllers requiring stable low-voltage bias. IC Role / Device Role / Timing Role: Fixed-output DC/DC converter providing ripple-free 1.2V at up to 3A with minimal external components for space-constrained sensor housings. Use Value: Achieves 92% peak efficiency at 2A/3.3VIN, reducing thermal load in sealed sensor enclosures while meeting ASIL-B EMC immunity targets. |
| Automotive Infotainment | Automotive V2X |
Use Scenario: Generating processor I/O and memory interface rails in head-unit and digital cluster systems. IC Role / Device Role / Timing Role: Secondary power stage regulating 1.2V for LPDDR4 I/O buffers and display timing controllers. Use Value: Delivers 100% duty cycle capability down to 2.5VIN, sustaining operation during cold-crank events without brownout resets. |
Use Scenario: Powering DSRC/Wave and C-V2X communication modems operating in harsh RF environments. IC Role / Device Role / Timing Role: Immune, low-EMI 1.2V supply with FCCM operation and integrated shielding - minimizes conducted emissions into antenna paths. Use Value: Meets CISPR 25 Class 5 radiated emissions limits without additional ferrite beads or shielding, reducing bill-of-material 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 |
|---|---|---|---|
| TPS6286418RTER | Fixed 1.8V output; 4A rating; 3.3V–18V input; 2.25MHz fSW; no wettable flank | Higher voltage, wider input - suitable for post-regulation of 5V/12V domains, not direct 1.2V replacement | Select only if system requires 1.8V rail and higher input voltage tolerance; requires PCB redesign due to different pinout and package. |
| RTQ2132BGQW | Adjustable output (0.6V–5.5V); 3A; 2.7V–18V input; 2.2MHz fSW; AEC-Q100 Grade 2 | Requires external feedback resistors; lower temp grade - less suited for under-hood placement | Choose when adjustable output or extended input range is needed; verify thermal derating above 125°C ambient. |
Compared with TPS6286418RTER and RTQ2132BGQW, the MPM3808CGLE-12-AEC1-P offers tighter 1.2V regulation accuracy, wettable flank inspection readiness, and guaranteed -40°C to +150°C operation - making it optimal for front-end camera and radar power where precision and manufacturability are critical.
Availability
MPM3808CGLE-12-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 AEC-Q100 compliance and traceable sourcing.
Supply support for MPM3808CGLE-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 MPM3808C product line delivers fully integrated, AEC-Q100-qualified DC/DC modules targeting space- and reliability-constrained automotive subsystems such as camera, radar, and V2X communications - emphasizing minimal external components, wettable flank packaging, and wide-temperature operation.
FAQ
Is the FB pin required to be connected for the MPM3808CGLE-12-AEC1-P?
No. The MPM3808CGLE-12-AEC1-P is a fixed 1.2V output variant; the FB pin is internally connected to the feedback divider and must be left floating per datasheet specification. Connecting it externally will disrupt regulation and may cause instability or overvoltage.
What is the purpose of the OUT_S pin, and can it be left unconnected?
The OUT_S pin serves dual roles: sensing output voltage for regulation and enabling internal 120Ω discharge during shutdown. It must be connected to the same net as the OUT pins. Leaving it unconnected disables output discharge and may delay system reset timing after power-off.
Does the MPM3808CGLE-12-AEC1-P support pre-biased start-up?
Yes. The device initiates soft-start regardless of initial output voltage level, allowing safe power-up into pre-charged downstream capacitance - a key requirement for hot-swappable camera modules and systems with auxiliary bias rails.
How does the PG signal behave during thermal shutdown?
During thermal shutdown, the PG pin is actively pulled low within 70µs once VFB drops below 85% of 0.6V (0.51V). It remains low until thermal recovery and successful restart, providing unambiguous fault indication to host controllers without requiring external monitoring circuitry.
What is the minimum recommended soft-start capacitor value for this part?
The minimum recommended soft-start capacitor is 1nF, charged by a typical 3µA current source. This yields ~200ms soft-start time (tSS = 0.6V × CSS/ISS). Larger values extend ramp time but improve inrush control; values below 1nF risk overshoot or startup failure.
Can the MPM3808CGLE-12-AEC1-P operate with input voltage below 2.5V?
No. The absolute minimum input voltage is 2.5V per datasheet specifications. Below this, UVLO prevents startup, and operation below 2.3V (rising threshold) risks erratic behavior or latch-up. For sub-2.5V applications, consider alternative architectures like buck-boost or LDOs.
Is the DNC pin electrically isolated or tied internally?
Pin 15 (DNC) is internally connected to the SW node and must remain unconnected on the PCB. Routing traces or placing vias under this pad creates parasitic coupling, increases EMI, and risks solder bridging - violating the recommended layout in the datasheet.
MPM3808CGLE-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):
- 3A
- Power (Watts):
- 3.6 W
- Voltage - Isolation:
- -
- Applications:
- -
- 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:
- -
MPM3808CGLE-12-AEC1-P FAQ
1.How can I place an order for MPM3808CGLE-12-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3808CGLE-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 MPM3808CGLE-12-AEC1-P reliable?
The price and inventory of MPM3808CGLE-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 MPM3808CGLE-12-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPM3808CGLE-12-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808CGLE-12-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3808CGLE-12-AEC1-P?
MPM3808CGLE-12-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3808CGLE-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 MPM3808CGLE-12-AEC1-P?
For technical support, including MPM3808CGLE-12-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808CGLE-12-AEC1-P requirements.
6.How does Aetrix verify that MPM3808CGLE-12-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPM3808CGLE-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 MPM3808CGLE-12-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPM3808CGLE-12-AEC1-P?
All MPM3808CGLE-12-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808CGLE-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 MPM3808CGLE-12-AEC1-P part is unused and in its original packaging.
Return procedure for MPM3808CGLE-12-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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