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Monolithic Power Systems Inc. MPM3808CGLE-12-AEC1-Z
- Part No.:
- MPM3808CGLE-12-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3808CGLE-12-AEC1-Z.pdf
- Description:
- 5.5V, 3A, 2.4MHZ, SYNCHRONOUS ST
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MPM3808CGLE-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 3A continuous output current at a fixed 1.2V output, 2.4MHz switching frequency, and ±2% output regulation over -40°C to +150°C junction temperature - deployed in automotive ADAS camera modules and infotainment systems.
For engineers reviewing the MPM3808CGLE-12-AEC1-Z datasheet, MPM3808CGLE-12-AEC1-Z pinout, MPM3808CGLE-12-AEC1-Z application, or MPM3808CGLE-12-AEC1-Z equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade thermal and EMC performance, and real-world selection guidance for high-density, safety-critical DC/DC conversion.
Technical Context
The MPM3808CGLE-12-AEC1-Z implements constant-on-time (COT) control with VIN feed-forward, enabling stable 2.4MHz operation across 2.5V–6V input while maintaining FCCM mode under all load conditions. Its internal 376–564nH inductor and matched 50mΩ/26mΩ HS/LS MOSFETs support fast transient response and low-noise regulation.
It integrates fault protection including 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 VFB. The fixed 1.2V output eliminates external feedback resistors, and the wettable flank QFN-15 package enables automated optical inspection in automotive production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.2V ±2% (1.176V–1.224V) - no external resistor divider required; simplifies layout and improves accuracy vs. adjustable variants. |
| Max output current | 3A continuous - supported by integrated 376–564nH inductor and low-RDS(ON) MOSFETs (50mΩ HS / 26mΩ LS). |
| Switching frequency | 2.4MHz (2000–2700kHz) - enables compact external components and reduces EMI fundamental energy in sensitive automotive bands. |
| Input voltage range | 2.5V to 6V - compatible with 3.3V, 5V, and automotive 12V-derived rails via pre-regulation. |
| Operating junction temp | -40°C to +150°C - AEC-Q100 Grade 1 qualification ensures reliability in engine bay and ADAS sensor environments. |
| Thermal resistance θJA | 65°C/W (JESD51-7, 4-layer PCB) - enables 3A operation without forced airflow in typical automotive PCB layouts. |
| Protection features | SCP with hiccup mode, OVP (115% VFB), thermal shutdown (170°C), UVLO (2.45V rising), PG indicator - supports ASIL-B system-level fault containment. |
Pinout & Package
MPM3808CGLE-12-AEC1-Z is housed in a wettable flank QFN-15 package (3mm × 4mm × 1.6mm) with exposed thermal pad for enhanced heat dissipation in automotive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference | Floating in fixed-output configuration; internal resistor divider sets 1.2V output - eliminates external components and layout sensitivity. |
| 2 PG | Power good indicator | Open-drain signal pulled high when VFB ≥ 90% of 0.6V reference; used for system power sequencing and fault detection. |
| 3 VIN | Main input supply | Accepts 2.5V–6V; requires local ceramic decoupling to suppress high-frequency switching noise on shared rail. |
| 4–6 SW | Switch node | Internal connection to high-side P-MOSFET drain and integrated inductor - critical for EMI layout; must minimize loop area. |
| 7–9 OUT | Regulated output | Delivers 1.2V/3A; connects directly to load and output capacitor - low-ESR ceramic cap (≥22µF) required for stability. |
| 10–11 GND | Power ground | Common return for input/output capacitors and thermal pad; multiple vias to inner ground plane essential for thermal and noise performance. |
| 12 EN | Enable control | Digital input with 0.9V rising / 0.65V falling thresholds; internal 2MΩ pull-down enables default-off behavior for safety-critical startup. |
| 13 SS | Soft-start timing | External capacitor sets ramp rate; 1.5–4.5µA charge current enables controlled 1.2V rise time - prevents inrush into downstream loads. |
| 14 OUT_S | Output sense & discharge | Senses VOUT for regulation and provides 120Ω discharge path during shutdown - ensures rapid, safe output collapse. |
| 15 DNC | No-connect terminal | 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 use from -40°C to +150°C TJ, including HTOL, TC, and ESD testing per AEC standards. |
| Integrated inductor + MOSFETs | Eliminates 4 external components (inductor, HS/LS FETs, bootstrap cap); reduces BOM count and board area by >40% vs. controller-based solutions. |
| Wettable flank QFN package | Enables automated AOI of solder joints on bottom leads - critical for zero-defect requirements in Tier-1 automotive manufacturing. |
| FCCM across full load range | Maintains constant 2.4MHz switching regardless of load, improving EMI predictability and easing filter design for CISPR 25 Class 5 compliance. |
| 100% duty cycle capability | Supports LDO-like operation at ultra-low dropout (e.g., 1.2V out from 1.3V in), extending usable input range in battery-depleted scenarios. |
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 for ISP and sensor interface logic, synchronized to pixel clock timing constraints. Use Value: 2.4MHz FCCM minimizes beat frequencies with image sensor clocks; ±2% regulation ensures consistent ADC reference stability across temperature. |
Use Scenario: Supplying radar SoCs and LiDAR time-of-flight processors in front-end ADAS ECUs. IC Role / Device Role / Timing Role: Point-of-load regulator for digital processing cores requiring clean, low-noise 1.2V at up to 3A peak current. Use Value: Integrated inductor and COT control deliver <100ns transient response to burst-mode compute loads, preventing logic errors during object detection. |
| Automotive Infotainment | Automotive V2X |
Use Scenario: Powering application processors and GPU subsystems in head-unit displays and digital clusters. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 5V domain, supporting dynamic voltage scaling during UI rendering. Use Value: Wettable flank QFN ensures solder joint reliability under thermal cycling; 150°C TJ rating sustains operation near display backlight drivers. |
Use Scenario: Providing stable 1.2V supply to DSRC/Wave or C-V2X communication SoCs in telematics control units. IC Role / Device Role / Timing Role: Always-on low-quiescent regulator supporting wake-on-RF functionality with <1µA shutdown current. Use Value: 0.01µA typical shutdown current extends battery life during vehicle sleep mode; PG signal enables secure boot sequencing. |
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 |
|---|---|---|---|
| MPM3808CGLE-12-Z | Non-AEC-Q100 version; identical electrical specs but not qualified for automotive temperature or reliability stress testing. | Limited to industrial or consumer applications where -40°C to +105°C ambient suffices and ASIL compliance is not required. | Select only if automotive qualification is unnecessary and cost sensitivity outweighs long-term field reliability requirements. |
| TPS82084SILR | TI 3A module with 1.2V fixed output, but uses different COT architecture, higher quiescent current (1.2mA vs. 0.65mA), and no wettable flank package. | Lacks AEC-Q100 Grade 1 rating and fails CISPR 25 Class 5 EMI margin in same PCB layout due to lower switching frequency (2MHz). | Use only if TI ecosystem alignment or existing reference design reuse outweighs automotive qualification and EMI performance needs. |
Compared with MPM3808CGLE-12-AEC1-Z, the non-automotive MPM3808CGLE-12-Z omits qualification evidence but matches performance, while TPS82084SILR trades automotive robustness for TI-specific toolchain support and lacks wettable flank AOI capability.
Availability
MPM3808CGLE-12-AEC1-Z is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head-units, and V2X telematics systems requiring stable component supply with full AEC-Q100 traceability and extended temperature support.
Supply support for MPM3808CGLE-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 over 20 years of expertise in DC/DC conversion and automotive-grade reliability.
The MPM3808C product line delivers fully integrated, AEC-Q100-qualified power modules targeting space-constrained, thermally demanding automotive subsystems such as ADAS, infotainment, and body electronics.
FAQ
What is the purpose of the OUT_S pin on the MPM3808CGLE-12-AEC1-Z?
The OUT_S pin serves dual functions: it provides precise output voltage sensing for regulation feedback and activates an internal 120Ω discharge path to rapidly collapse VOUT during shutdown. This ensures safe, controlled power-down of downstream logic without relying on external circuitry - critical for automotive reset sequencing and functional safety compliance.
Does the MPM3808CGLE-12-AEC1-Z require external compensation components?
No. The MPM3808CGLE-12-AEC1-Z integrates a complete compensation network internally, eliminating the need for external RC networks or type-II/type-III compensators. This is enabled by its constant-on-time control architecture and factory-trimmed internal error amplifier, reducing design risk and board area in automotive applications.
How does the PG (power good) signal behave during startup and fault conditions?
The PG pin remains low until VFB reaches ≥90% of 0.6V (i.e., ≥540mV), then pulls high via external pull-up. It falls low again if VFB drops below 85% (510mV). During short-circuit or OVP events, PG deasserts within 70µs, providing deterministic fault signaling for host microcontrollers without software polling.
Can the MPM3808CGLE-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 2.45V rising threshold and 200mV hysteresis. Attempting operation below this risks unstable regulation, increased ripple, or failure to start - especially critical in cold-crank automotive scenarios where battery voltage dips transiently.
What is the significance of the "E" suffix in the top marking "MPM3808CGLE-12-AEC1"?
The "E" denotes the wettable flank package variant, where the side walls of the QFN-15 are plated to enable automated optical inspection (AOI) of solder fillets. This is mandatory for automotive Tier-1 manufacturing to achieve zero-defect solder joint verification - distinct from standard QFN packages that lack inspectable flank metallization.
Is the 1.2V output adjustable via external resistors?
No. The MPM3808CGLE-12-AEC1-Z is a fixed-output variant; the "12" in the part number specifies factory-trimmed 1.2V regulation. The FB pin must be left floating. For adjustable output, the base part MPM3808CGLE-AEC1-Z is required, which uses an external resistor divider to set VOUT from 0.6V to VIN – 0.5V.
How does the hiccup-mode short-circuit protection recover after fault removal?
Upon short-circuit detection, the device disables switching, discharges the SS capacitor, and waits for VSS to fall below threshold before initiating a new soft-start cycle. Recovery is automatic and self-timed - no external reset or enable toggling is needed. Full regulation resumes within ≤50ms after fault clearance under typical conditions.
MPM3808CGLE-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):
- 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-Z FAQ
1.How can I place an order for MPM3808CGLE-12-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3808CGLE-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 MPM3808CGLE-12-AEC1-Z reliable?
The price and inventory of MPM3808CGLE-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 MPM3808CGLE-12-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3808CGLE-12-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808CGLE-12-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3808CGLE-12-AEC1-Z?
MPM3808CGLE-12-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3808CGLE-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 MPM3808CGLE-12-AEC1-Z?
For technical support, including MPM3808CGLE-12-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808CGLE-12-AEC1-Z requirements.
6.How does Aetrix verify that MPM3808CGLE-12-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3808CGLE-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 MPM3808CGLE-12-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3808CGLE-12-AEC1-Z?
All MPM3808CGLE-12-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808CGLE-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 MPM3808CGLE-12-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3808CGLE-12-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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