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Monolithic Power Systems Inc. MPM3808GLE-18-AEC1-Z
- Part No.:
- MPM3808GLE-18-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3808GLE-18-AEC1-Z.pdf
- Description:
- 5.5V, 3A, SYNCHRONOUS STEP-DOWN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MPM3808GLE-18-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated synchronous step-down power module with embedded inductor and MOSFETs, delivering up to 3A continuous output at fixed 1.8V (±2% regulation), operating from 2.5V–5.5V input, and featuring constant-on-time control for fast transient response in automotive ADAS and infotainment systems.
For engineers reviewing the MPM3808GLE-18-AEC1-Z datasheet, MPM3808GLE-18-AEC1-Z pinout, MPM3808GLE-18-AEC1-Z application, or MPM3808GLE-18-AEC1-Z equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and efficiency performance across temperature, and real-world automotive-grade substitution guidance - all derived from MPS Rev. 1.0 documentation and official package data.
Technical Context
The MPM3808GLE-18-AEC1-Z implements a constant-on-time (COT) control architecture with VIN feed-forward, enabling stable 2.4MHz switching frequency across its 2.5V–5.5V input range and maintaining tight line/load regulation. Its internal 0.6V reference and fixed-resistor feedback network (RBOT = 150kΩ for 1.8V output) eliminate external divider components.
Fault protection includes cycle-by-cycle current limiting (peak: 4–6A, valley: 1.5–4.5A), thermal shutdown at 170°C with 20°C hysteresis, hiccup-mode overvoltage/short-circuit protection, and zero-current detection (50mA threshold) to sustain DCM operation under light loads - all critical for automotive reliability in camera modules and V2X transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% (1.764V–1.836V), set internally via 150kΩ bottom resistor - eliminates external FB divider and reduces BOM count. |
| Max Output Current | 3A continuous, supported by integrated 65mΩ HS-FET and 35mΩ LS-FET - enables compact 3mm×4mm layout without external power stages. |
| Input Voltage Range | 2.5V to 5.5V - compatible with automotive 3.3V/5V rails and battery-supplied ADAS sensors with cold-crank tolerance. |
| Switching Frequency | 2.4MHz nominal (2.0–2.64MHz) - allows small external capacitors and minimizes EMI in high-density PCBs. |
| Quiescent Current | 21µA in sleep mode - extends battery life in always-on automotive modules such as rear-view cameras. |
| Operating Junction Temp | −40°C to +150°C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin-mounted electronics. |
| Thermal Resistance | θJA = 65°C/W (JEDEC 4-layer board) - enables 3A operation with ≤30°C case rise at 3.3VIN/1.8VOUT, verified per Figure 13. |
Pinout & Package
MPM3808GLE-18-AEC1-Z uses a wettable-flank QFN-15 (3mm × 4mm × 1.6mm) package 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 in fixed-output version - internal 150kΩ resistor sets 1.8V regulation; no external divider required. |
| 2 PG | Open-drain power-good indicator | Pulled high when VFB ≥ 90% of 0.6V (i.e., VOUT ≥ 1.62V); pulled low below 85% (≤1.53V) - enables system-level power sequencing validation. |
| 3 VIN | Main input supply | 2.5V–5.5V rail input; requires local 10µF ceramic decoupling - supports start-stop battery systems. |
| 4–6 SW | Switch node connection | Internal P-channel MOSFET drain tied to embedded 470nH inductor - single-point high-current path, minimizing loop inductance. |
| 7–9 OUT | Power output terminal | Delivers regulated 1.8V to load; connects directly to output capacitor bank - low-impedance path for 3A DC and transient currents. |
| 10–11 GND | Ground reference | Common return for input/output caps and IC substrate - must be connected to large copper pour with multiple vias for thermal and EMI control. |
| 12 EN | Enable control input | Active-high logic (0.9V rising, 0.65V falling threshold); internal 2MΩ pull-down - enables precise power-up/down sequencing in multi-rail ECUs. |
| 13 SS | Soft-start timing node | Accepts external capacitor (≥1nF) to control VOUT ramp rate - prevents inrush into downstream FPGAs or image sensors. |
| 14 OUT_S | Output voltage sense/discharge path | Senses VOUT for regulation and provides 150Ω discharge path during shutdown - ensures rapid rail collapse for safe processor reset. |
| 15 DNC | No-connect thermal pad | Internally tied to SW node - must remain unconnected on PCB to avoid shorting switch node to ground or plane. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +150°C junction operation with full automotive stress testing - suitable for front-camera, radar, and gateway modules. |
| Integrated inductor and MOSFETs | 470nH embedded inductor (±20%) with 25–65mΩ DCR and co-packaged 65mΩ/35mΩ FETs - eliminates 6 external components and saves >25mm² board area. |
| MeshConnect™ flip-chip packaging | Reduces parasitic inductance and improves thermal conduction from die to PCB - measured θJC = 10°C/W on EVB, enabling higher sustained current. |
| Advanced Asynchronous Modulation (AAM) | Enables discontinuous conduction mode (DCM) down to 1mA load with 21µA IQ - maintains >85% efficiency at 10mA for always-on vehicle telematics. |
| Wettable flank leads | Side-wettable QFN structure enables AOI-compatible solder joint inspection - satisfies IPC-A-610 Class 3 automotive assembly requirements. |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
Use Scenario: Front-facing 8MP automotive camera with rolling shutter sensor and ISP requiring clean, low-noise 1.8V core supply. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering regulated 1.8V at up to 2.5A with <±0.3% load regulation and <10mV ripple. Use Value: Integrated inductor and 2.4MHz switching minimize conducted EMI near image sensor analog front-end, preserving SNR. | Use Scenario: Radar SoC (e.g., TI AWR2944) requiring tightly regulated 1.8V I/O supply with fast load transient response during chirp bursts. IC Role / Device Role / Timing Role: High-bandwidth POL converter using COT control to maintain <1% VOUT deviation during 0→3A 1A/µs transients. Use Value: 80µs PG deglitch and 100µs EN turn-on delay enable deterministic power sequencing with radar MCU boot ROM. |
| Automotive Infotainment | Automotive V2X |
Use Scenario: Head-unit application processor (e.g., NXP i.MX8Q) requiring 1.8V DDR I/O rail with thermal robustness in dash-mounted enclosures. IC Role / Device Role / Timing Role: Thermally optimized power stage with 65°C/W θJA and 150°C TJMAX - sustains 3A output at 85°C ambient with <30°C case rise. Use Value: Wettable flank QFN ensures solder joint reliability through 2000+ thermal cycles, meeting automotive long-life requirements. | Use Scenario: DSRC/Wave 5G V2X communication module needing ultra-low quiescent current during sleep mode between beacon transmissions. IC Role / Device Role / Timing Role: Always-on 1.8V supply operating in AAM mode with 21µA IQ - extends battery backup runtime beyond 72 hours. Use Value: Internal 150Ω discharge path collapses VOUT within 10ms of EN deassertion, ensuring clean reset of V2X baseband processor. |
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 | 2A max output, 1.8V fixed, 2.5V–6V input, 2.2MHz fSW, no PG pin, non-AEC-Q100 | Limited to non-safety-critical consumer infotainment; lacks automotive qualification and power-good signaling | Select only for cost-sensitive non-automotive designs where 2A suffices and AEC-Q100 is not mandated. |
| RT7297BZSP | 3A max, adjustable/fixed 1.8V, 2.7V–5.5V input, 1.5MHz fSW, AEC-Q100 Grade 2 (−40°C to +105°C) | Lower temperature rating excludes under-hood use; lower fSW requires larger output capacitance | Choose only if Grade 2 suffices and board space allows larger 4.5mm×4.5mm QFN package. |
Compared with TPS82084SILR and RT7297BZSP, MPM3808GLE-18-AEC1-Z uniquely combines AEC-Q100 Grade 1 qualification, integrated inductor, wettable flank packaging, and PG signaling - making it the only option qualified for front-camera and radar SoC power delivery in production vehicles.
Availability
MPM3808GLE-18-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor subsystems, infotainment head-units, and V2X communication devices requiring stable component supply with full AEC-Q100 traceability and extended temperature support.
Supply support for MPM3808GLE-18-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, and global manufacturing partnerships.
The MPM3808 product line delivers fully integrated, AEC-Q100-qualified power modules targeting space-constrained automotive subsystems - specifically engineered to replace discrete buck converters in ADAS, infotainment, and body electronics while reducing design risk and time-to-market.
FAQ
What is the purpose of the OUT_S pin on the MPM3808GLE-18-AEC1-Z?
The OUT_S pin serves dual functions: it provides precision output voltage sensing for regulation feedback and activates an internal 150Ω discharge path to ground during shutdown. This ensures rapid, controlled collapse of the 1.8V rail - critical for safe reset of image sensors or processors without relying on external circuitry.
Does the MPM3808GLE-18-AEC1-Z require external compensation components?
No. The device integrates a complete compensation network, including 25kΩ resistor and 25pF capacitor (per Figure 2), eliminating the need for external type-II or type-III compensation. This simplifies layout, improves stability across temperature, and reduces bill-of-materials cost - a key advantage over controller-based solutions.
How does the constant-on-time (COT) control improve transient response compared to voltage-mode control?
COT control directly links switch-on time to output voltage deviation from the 0.6V reference, enabling sub-microsecond response to load steps. Unlike voltage-mode loops requiring complex compensation, COT avoids phase-margin tuning - resulting in <10µs recovery from 0→3A transients while maintaining stability across input and temperature variations.
Can the MPM3808GLE-18-AEC1-Z operate in 100% duty cycle mode?
Yes. When input voltage approaches the 1.8V output (e.g., VIN = 2.0V), the device enters low-dropout (LDO) mode with 100% duty cycle, sustaining regulation without dropout. This capability supports cold-crank scenarios in automotive systems where battery voltage dips below 3V but the 1.8V rail must remain active.
What is the significance of the "-Z" suffix in MPM3808GLE-18-AEC1-Z?
The "-Z" suffix denotes tape-and-reel packaging per JEDEC standard J-STD-020, with moisture sensitivity level (MSL) 1 rating - indicating unlimited floor life at ≤30°C/60% RH. This enables direct placement on SMT lines without baking, streamlining high-volume automotive manufacturing.
Is the PG pin actively driven or open-drain, and what external component is required?
The PG pin is strictly open-drain and requires an external pull-up resistor (typically 10kΩ to 5.5V). It asserts high when VFB ≥ 90% of 0.6V (i.e., VOUT ≥ 1.62V) and pulls low below 85% (≤1.53V), providing reliable power-good status for microcontrollers or FPGA configuration sequencers.
How does the wettable flank QFN package benefit automotive assembly?
The wettable flank structure exposes solderable sidewalls on all 15 leads, enabling automated optical inspection (AOI) of solder fillets - a requirement for IPC-A-610 Class 3 automotive assembly. This eliminates X-ray inspection costs and improves first-pass yield in high-reliability automotive PCB assembly lines.
MPM3808GLE-18-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:
- 1.8V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output, Remote On/Off, Remote Sense
- 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:
- -
MPM3808GLE-18-AEC1-Z FAQ
1.How can I place an order for MPM3808GLE-18-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3808GLE-18-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 MPM3808GLE-18-AEC1-Z reliable?
The price and inventory of MPM3808GLE-18-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 MPM3808GLE-18-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPM3808GLE-18-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808GLE-18-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3808GLE-18-AEC1-Z?
MPM3808GLE-18-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3808GLE-18-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 MPM3808GLE-18-AEC1-Z?
For technical support, including MPM3808GLE-18-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808GLE-18-AEC1-Z requirements.
6.How does Aetrix verify that MPM3808GLE-18-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPM3808GLE-18-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 MPM3808GLE-18-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPM3808GLE-18-AEC1-Z?
All MPM3808GLE-18-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808GLE-18-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 MPM3808GLE-18-AEC1-Z part is unused and in its original packaging.
Return procedure for MPM3808GLE-18-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPM3808GLE-18-AEC1-Z Tags
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