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Monolithic Power Systems Inc. MPM3808GLE-18-AEC1-P
- Part No.:
- MPM3808GLE-18-AEC1-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 15-PowerLFQFN Module
- Datasheet:
-
MPM3808GLE-18-AEC1-P.pdf
- Description:
- 5.5V, 3A, SYNCHRONOUS STEP-DOWN
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MPM3808GLE-18-AEC1-P 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-P datasheet, MPM3808GLE-18-AEC1-P pinout, MPM3808GLE-18-AEC1-P application, or MPM3808GLE-18-AEC1-P equivalent, key selection considerations include its wettable-flank QFN-15 package, 1.8V fixed output with 0.6V internal reference, 21µA sleep-mode IQ, 2.4MHz switching frequency, and integrated protections including hiccup-mode SCP and thermal shutdown.
Technical Context
The MPM3808GLE-18-AEC1-P implements a constant-on-time (COT) control architecture with VIN feed-forward, enabling stable 2.4MHz switching across its 2.5V–5.5V input range and maintaining tight line/load regulation. Its internal 0.6V reference and fixed-resistor divider (RBOT = 150kΩ for 1.8V) eliminate external feedback components.
It integrates high-side (65mΩ) and low-side (35mΩ) MOSFETs, a 470nH inductor with 25mΩ DCR, and supports advanced light-load operation via Advanced Asynchronous Modulation (AAM) and zero-current detection (50mA threshold), enabling efficient DCM down to microamp loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% (1.764V–1.836V), set internally - no external resistor divider required. |
| Max Output Current | 3A continuous - supported by integrated 65mΩ/35mΩ MOSFETs and 470nH inductor with 5.4A saturation current. |
| Input Voltage Range | 2.5V to 5.5V - compatible with automotive 3.3V/5V rails and battery-supplied ADAS sensors. |
| Switching Frequency | 2.4MHz nominal - enables compact external filtering and reduces EMI fundamental energy in sensitive RF bands. |
| Quiescent Current | 21µA in sleep mode - extends battery life in always-on vehicle modules like V2X transceivers. |
| Thermal Rating | Junction temperature range −40°C to +150°C - meets AEC-Q100 Grade 1 requirements for under-hood and cabin applications. |
| Protections | Cycle-by-cycle current limit (4–6A peak), hiccup-mode SCP, OVP (115% VFB), thermal shutdown (170°C), and PG monitoring. |
Pinout & Package
MPM3808GLE-18-AEC1-P is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm), optimized for automated optical inspection (AOI) and robust solder joint reliability in automotive reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FB | Feedback reference | Floating in fixed-output version - internal 150kΩ bottom resistor sets 1.8V; no external divider needed. |
| 2 PG | Power good indicator | Open-drain output asserting high when VOUT ≥ 90% of 1.8V (≥1.62V); debounced with 80µs deglitch. |
| 3 VIN | Main input supply | Accepts 2.5V–5.5V; requires local ceramic decoupling; UVLO rising threshold 2.45V. |
| 4–6 SW | Switch node | Internal high-side P-MOS drain connection to inductor - carries full switching current and voltage stress. |
| 7–9 OUT | Regulated output | Delivers 1.8V/3A; connects directly to load and output capacitor; includes internal discharge path (150Ω). |
| 10–11 GND | Power ground | Low-impedance return for input/output capacitors and IC core; requires multiple vias to inner ground plane. |
| 12 EN | Enable control | Digital input: >0.9V enables, <0.65V disables; internal 2MΩ pull-down enables default-off behavior. |
| 13 SS | Soft-start timing | External capacitor (≥1nF) controls VOUT ramp rate; internal 3µA current source sets tSS = 3µA × CSS. |
| 14 OUT_S | Output sense/discharge | Senses VOUT for regulation and provides dedicated discharge path to GND during shutdown. |
| 15 DNC | No-connect pad | Internally tied to SW - must remain unconnected and un-routed to avoid parasitic coupling or shorts. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +150°C junction operation - suitable for engine bay, radar, and camera ECU deployments. |
| Wettable-flank QFN-15 package | Enables reliable AOI solder-joint inspection - critical for zero-defect automotive manufacturing standards. |
| Integrated compensation network | Eliminates external loop-compensation components - reduces BOM count and layout sensitivity. |
| MeshConnect™ flip-chip construction | Reduces parasitic inductance and improves thermal conduction - lowers EMI emissions and junction temperature rise. |
| 100% duty cycle capability | Supports LDO-like operation near dropout - maintains regulation even as VIN approaches 1.8V + diode drop. |
| External soft-start control | Adjustable startup slew rate via SS capacitor - prevents inrush current into large downstream capacitance (e.g., SoC power domains). |
Applications
| Camera Modules | ADAS Sensors |
|---|---|
Use Scenario: Powering high-resolution CMOS image sensors in rear-view, surround-view, and driver-monitoring cameras. IC Role / Device Role / Timing Role: Primary 1.8V core supply for sensor analog front-end and digital interface logic. Use Value: Tight 2% output tolerance and low 21µA quiescent current ensure accurate pixel biasing and extended parking-mode runtime. |
Use Scenario: Supplying radar transceiver MMICs and LiDAR time-of-flight processors in forward-collision warning systems. IC Role / Device Role / Timing Role: Point-of-load regulator converting 5V domain to noise-sensitive 1.8V digital core rail. Use Value: 2.4MHz switching and MeshConnect packaging minimize conducted EMI that could interfere with GHz-band RF signals. |
| Automotive Infotainment | Automotive V2X |
Use Scenario: Delivering stable 1.8V to application processors and display controllers in head-unit and digital cluster systems. IC Role / Device Role / Timing Role: Secondary regulated rail supporting DDR memory I/O and GPU subsystems. Use Value: Fast COT transient response handles bursty CPU loads without violating 50mV droop spec under 3A step changes. |
Use Scenario: Powering DSRC/WAVE or C-V2X communication modems requiring always-on, low-power wake-up capability. IC Role / Device Role / Timing Role: Always-on 1.8V supply for modem baseband and secure element ICs. Use Value: Sleep-mode IQ of 21µA enables multi-year battery backup in telematics control units without compromising responsiveness. |
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, 2.2MHz fSW, no wettable flank, lower thermal rating (−40°C to +125°C). | Limited to non-under-hood infotainment; lacks AEC-Q100 qualification and 3A capability for radar sensors. | Select only if 2A output suffices and AEC-Q100 Grade 1 is not required. |
| RTQ2132BGQW | 3A, 1.8V fixed, 2.1MHz fSW, AEC-Q100 Grade 1, but uses larger QFN-16 (4mm×4mm) and lacks integrated soft-start capacitor control. | Compatible for ADAS but requires additional external SS circuitry and occupies 33% more PCB area. | Choose when board space permits and discrete soft-start tuning is preferred over integrated simplicity. |
Compared with TPS82084SILR and RTQ2132BGQW, MPM3808GLE-18-AEC1-P uniquely combines AEC-Q100 Grade 1, wettable-flank QFN-15, 3A capability, and external SS control - optimizing for space-constrained, thermally demanding automotive modules where manufacturability and transient performance are critical.
Availability
MPM3808GLE-18-AEC1-P is available at Aetrix Electronics and suitable for automotive camera modules, ADAS radar sensors, infotainment head-units, and V2X telematics requiring stable component supply with full AEC-Q100 traceability and long-term production support.
Supply support for MPM3808GLE-18-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, headquartered in Kirkland, WA, with global design and support infrastructure.
The MPM3808 product line delivers fully integrated, AEC-Q100-qualified DC/DC power modules targeting space- and reliability-critical automotive subsystems such as ADAS, infotainment, and body electronics.
FAQ
Is MPM3808GLE-18-AEC1-P pin-compatible with other MPM3808 variants?
Yes - all MPM3808 variants (adjustable and fixed-output versions) share identical QFN-15 pinout, footprint, and thermal pad layout. The FB pin is left floating in fixed-output models like MPM3808GLE-18-AEC1-P, while adjustable versions require external resistor dividers.
What is the purpose of the OUT_S pin, and can it be left unconnected?
The OUT_S pin serves dual functions: sensing output voltage for regulation accuracy and providing a dedicated 150Ω discharge path during shutdown. It must be connected to the same net as OUT; leaving it unconnected degrades regulation precision and disables controlled output discharge.
Does MPM3808GLE-18-AEC1-P support forced PWM mode, or is it limited to COT/AAM operation?
It operates exclusively in constant-on-time (COT) control with automatic transition between continuous conduction mode (CCM), discontinuous conduction mode (DCM), and Advanced Asynchronous Modulation (AAM) - no external mode-select pin or forced PWM option is provided.
How does the PG signal behave during startup and fault conditions?
PG asserts high after VOUT reaches ≥90% of 1.8V (≥1.62V) and remains high until VOUT drops below 85% (≤1.53V). During short-circuit or thermal shutdown, PG pulls low within 80µs; it also stays low during EN-driven shutdown and startup ramp-up.
What is the minimum recommended output capacitance for stable operation at 3A load?
MPS specifies ≥22µF ceramic output capacitance (X5R/X7R, 6.3V rating) placed close to the OUT and GND pins. Using lower values risks instability under full load; adding parallel 1–2µF high-frequency ceramics further suppresses high-frequency ripple.
Can MPM3808GLE-18-AEC1-P operate with input voltage below 2.5V?
No - the absolute minimum input is 2.5V per datasheet specifications. Below this, UVLO prevents operation; attempting to force enable below 2.45V (rising threshold) results in no switching and undefined regulation behavior.
Is the integrated inductor shielded, and what is its saturation current rating?
Yes - the embedded inductor is a shielded molded type with 470nH nominal value and 5.4A typical saturation current (IL_SAT), verified across −40°C to +150°C. This ensures no core saturation or efficiency collapse at full 3A load under worst-case thermal conditions.
MPM3808GLE-18-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:
- 1.8V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 3A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- 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-P FAQ
1.How can I place an order for MPM3808GLE-18-AEC1-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3808GLE-18-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 MPM3808GLE-18-AEC1-P reliable?
The price and inventory of MPM3808GLE-18-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 MPM3808GLE-18-AEC1-P is usually 5 days.
3.What payment methods are accepted for MPM3808GLE-18-AEC1-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808GLE-18-AEC1-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3808GLE-18-AEC1-P?
MPM3808GLE-18-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3808GLE-18-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 MPM3808GLE-18-AEC1-P?
For technical support, including MPM3808GLE-18-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808GLE-18-AEC1-P requirements.
6.How does Aetrix verify that MPM3808GLE-18-AEC1-P is sourced from the original manufacturer or authorized distributors?
All MPM3808GLE-18-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 MPM3808GLE-18-AEC1-P meets industry standards.
7.What is the process for return or replacement of MPM3808GLE-18-AEC1-P?
All MPM3808GLE-18-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808GLE-18-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 MPM3808GLE-18-AEC1-P part is unused and in its original packaging.
Return procedure for MPM3808GLE-18-AEC1-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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