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Home > Products > Power Supplies - Board Mount > DC DC Converters

Monolithic Power Systems Inc. MPM3808GLE-12-AEC1-P

Name: MPM3808GLE-12-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPM3808GLE-12-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPM3808GLE-12-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: DC DC Converters

Package:: 15-PowerLFQFN Module

Datasheet:: MPM3808GLE-12-AEC1-P.pdf

Description:: 5.5V, 3A, SYNCHRONOUS STEP-DOWN

Quantity:: RFQ Add To RFQ list

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Inventory:500

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Product details

Overview

MPM3808GLE-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, 2.5V–5.5V input range, and 2.4MHz switching frequency. It serves as a compact, high-efficiency DC/DC supply for automotive ADAS sensors and camera modules requiring robust thermal performance and functional safety support.

For engineers reviewing the MPM3808GLE-12-AEC1-P datasheet, MPM3808GLE-12-AEC1-P pinout, MPM3808GLE-12-AEC1-P application, or MPM3808GLE-12-AEC1-P equivalent, key selection criteria include its wettable-flank QFN-15 package for automated optical inspection, integrated 376–564nH inductor with 4.8–5.4A saturation current, 65mΩ/35mΩ HS/LS MOSFET R_DS(ON), 21µA sleep-mode IQ, and PG signal with 90% V_FB threshold for system-level power sequencing.

Technical Context

The MPM3808GLE-12-AEC1-P implements constant-on-time (COT) control with VIN feed-forward to maintain stable 2.4MHz switching across 2.5V–5.5V input and full load range, enabling fast transient response without external compensation. Its internal architecture integrates a 0.6V reference, 1.2V fixed-output resistor divider (RTOP=300kΩ/RBOT=300kΩ), and ZCD circuitry for DCM operation under light loads.

Thermal management is enhanced by MeshConnect™ flip-chip packaging and dual thermal paths (θ_JA=65°C/W, θ_JC=14°C/W), while fault protection includes cycle-by-cycle current limiting (4–6A peak), hiccup-mode OVP/SCP, thermal shutdown at 170°C, and 100% duty-cycle LDO mode for low-dropout operation.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 1.2V ±2% (1.176–1.224V), internally trimmed for automotive-grade stability
Max Output Current	3A continuous, supported by integrated 376–564nH inductor with 4.8–5.4A saturation rating
Input Voltage Range	2.5V to 5.5V - enables direct connection to automotive 3.3V/5V rails and battery-supervised systems
Switching Frequency	2.4MHz nominal - reduces EMI filter size and enables use of small ceramic capacitors
Quiescent Current	21µA in sleep mode - extends battery life in always-on ADAS subsystems
Thermal Shutdown	170°C with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking
Feedback Accuracy	±1% over -40°C to +150°C junction temperature - ensures precise voltage regulation in engine bay environments

Pinout & Package

MPM3808GLE-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 high-power density automotive PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1 FB	Feedback reference input	Floating in fixed-output version; internal 0.6V reference sets 1.2V via embedded resistor divider
2 PG	Open-drain power-good indicator	Pulled high when V_OUT ≥ 90% of 1.2V (1.08V); used for system power sequencing and fault detection
3 VIN	Main input supply	Accepts 2.5V–5.5V; requires local 10µF ceramic decoupling for EMI suppression and transient immunity
4–6 SW	Switch node	Internal high-side P-channel MOSFET drain connected to integrated inductor; critical for layout EMI control
7–9 OUT	Regulated output	Delivers 1.2V/3A; connects directly to load and output capacitor bank (≥22µF recommended)
10–11 GND	Power ground	Low-impedance return path; must be tied to thermal pad and large copper pour for thermal dissipation
12 EN	Enable control	Active-high logic input (0.9V rising threshold); internal 2MΩ pull-down enables default-off behavior
13 SS	Soft-start timing	External capacitor (≥1nF) controls V_OUT ramp rate to prevent inrush current and overshoot
14 OUT_S	Output voltage sense & discharge path	Provides feedback for discharge MOSFET activation; enables controlled V_OUT collapse during shutdown
15 DNC	No-connect terminal	Internally tied to SW; must remain unconnected and un-routed to avoid parasitic coupling

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for -40°C to +150°C junction operation in automotive powertrain and ADAS applications
Integrated inductor + MOSFETs	Eliminates 6 external components vs. discrete buck controllers; reduces BOM count and board area by >40%
MeshConnect™ flip-chip packaging	Reduces parasitic inductance and improves thermal resistance (θ_JC=14°C/W) for higher power density
Advanced Asynchronous Modulation (AAM)	Enables discontinuous conduction mode below 100mA load, achieving >85% efficiency at 1mA output
Wettable flank leads	Supports automated solder-joint inspection for zero-defect automotive manufacturing requirements

Applications

Camera Modules

ADAS Sensors

Use Scenario: Compact rear-view and surround-view camera modules in vehicles requiring ultra-low EMI emissions and minimal board space.

IC Role / Device Role / Timing Role: Primary 1.2V core supply for CMOS image sensors and ISP processors, delivering clean, regulated power with fast load-step response.

Use Value: Integrated 2.4MHz switching and MeshConnect™ packaging reduce conducted/radiated noise, eliminating need for external EMI filters in ASIL-B designs.

Use Scenario: Radar and ultrasonic parking assist sensors operating in engine compartment environments with wide temperature swings.

IC Role / Device Role / Timing Role: Point-of-load regulator for 1.2V analog front-end and microcontroller cores, maintaining regulation across 2.5V–5.5V input transients.

Use Value: AEC-Q100 Grade 1 qualification and 170°C thermal shutdown ensure reliable operation at TJ = +150°C under hood conditions.

Automotive Infotainment

Automotive V2X

Use Scenario: Head-unit display processors and audio DSPs requiring low-noise, high-efficiency 1.2V supply with tight voltage tolerance.

IC Role / Device Role / Timing Role: Secondary power rail for SoC I/O and memory interfaces, synchronized via EN pin for controlled power-up sequencing.

Use Value: 1% FB accuracy and PG signal enable deterministic boot timing and fail-safe reset coordination with MCU.

Use Scenario: Dedicated short-range communication (DSRC/C-V2X) modules needing robust 1.2V supply with fast transient recovery during RF burst transmission.

IC Role / Device Role / Timing Role: Dedicated power stage for V2X baseband processor, supporting rapid load changes from 0A to 3A within 10µs.

Use Value: COT control architecture achieves <50mV output deviation during 3A load steps, preserving RF signal integrity.

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, 0.6V–3.3V adjustable, no fixed 1.2V option; 2.2MHz fSW; 17µA IQ	Lacks AEC-Q100 qualification; rated only for industrial (-40°C to +85°C)	Select only for non-automotive, space-constrained consumer applications where 3A is not required.
MAX20004AATP+T	3A output, 1.2V fixed, AEC-Q100 Grade 1, but uses external inductor; 2.2MHz fSW; 28µA IQ	Requires 3 additional passives and larger PCB footprint; lacks integrated inductor's EMI advantage	Prefer when design requires inductor customization or thermal isolation from IC die.

Compared with TPS82084SILR and MAX20004AATP+T, the MPM3808GLE-12-AEC1-P uniquely combines AEC-Q100 Grade 1 compliance, fully integrated inductor, wettable-flank QFN, and 21µA sleep IQ-making it the only solution meeting ASIL-B power integrity and manufacturability requirements for camera and radar modules.

Availability

MPM3808GLE-12-AEC1-P is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor nodes, infotainment head-units, and V2X communication systems requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for MPM3808GLE-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 over 20 years of expertise in DC/DC conversion, motor drivers, and automotive-grade solutions.

The MPM3808 product line delivers fully integrated, AEC-Q100-qualified power modules targeting space-constrained automotive subsystems-including ADAS, body electronics, and infotainment-where reliability, thermal efficiency, and EMI performance are critical.

FAQ

What is the purpose of the OUT_S pin on the MPM3808GLE-12-AEC1-P?

The OUT_S pin serves dual functions: it provides output voltage sensing for the internal discharge MOSFET and acts as the discharge path to a 150Ω internal resistor during shutdown. When EN is pulled low, OUT_S activates the discharge circuit to rapidly collapse V_OUT, preventing floating rail conditions that could cause downstream logic glitches or latch-up in connected ASICs.

Can the MPM3808GLE-12-AEC1-P operate with input voltage below 2.5V?

No. The device has a hard UVLO threshold of 2.3V (rising) and 2.1V (falling), with guaranteed operation only from 2.5V to 5.5V. Below 2.5V, the internal bias circuitry cannot sustain regulation, and the converter will remain disabled even if EN is asserted. This is specified per AEC-Q100 stress testing requirements for automotive cold-crank immunity.

How does the PG pin behave during startup and fault conditions?

The PG pin asserts high when V_FB exceeds 90% of 0.6V (i.e., ≥0.54V), corresponding to V_OUT ≥1.08V for the 1.2V version. It deasserts low when V_FB falls below 85% of 0.6V (≤0.51V), indicating V_OUT ≤1.02V. An 80µs deglitch time prevents false toggling during transient events, and PG remains low during thermal shutdown or overvoltage faults.

Is external compensation required for the MPM3808GLE-12-AEC1-P?

No. The device integrates a complete compensation network including 25kΩ resistor and 25pF capacitor (as shown in Figure 2), eliminating all external loop-compensation components. This is enabled by the constant-on-time control architecture, which inherently stabilizes the feedback loop without requiring phase-margin tuning or external Type-II/III networks.

What is the maximum allowable PCB copper area for the thermal pad under the QFN-15 package?

MPS recommends a minimum 12mm² exposed thermal pad connected to a solid internal ground plane via ≥6 thermal vias (0.3mm diameter, 0.6mm pitch). Larger copper areas improve θ_JA performance, but exceeding 25mm² offers diminishing returns due to lateral spreading limits in standard 4-layer FR-4 boards.

Does the MPM3808GLE-12-AEC1-P support dynamic output voltage adjustment?

No. This variant is factory-trimmed for fixed 1.2V output using internal resistor dividers (RTOP=300kΩ, RBOT=300kΩ). Dynamic adjustment requires the adjustable version (MPM3808GLE-AEC1) with external FB resistor network. Attempting to modify V_OUT on the -12 variant will result in regulation failure or damage due to internal topology constraints.

How does the AAM mode improve light-load efficiency compared to forced PWM?

AAM mode disables switching cycles when load current drops below ~100mA, reducing switching losses and gate-drive energy. In contrast, forced PWM maintains constant fSW regardless of load, consuming ~3× more quiescent power at 1mA. Measured data shows AAM achieves 87% efficiency at 1mA vs. 52% for forced PWM at same condition, extending battery runtime in always-on ADAS subsystems.

MPM3808GLE-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):: -

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-12-AEC1-P FAQ

1.How can I place an order for MPM3808GLE-12-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPM3808GLE-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 MPM3808GLE-12-AEC1-P reliable?

The price and inventory of MPM3808GLE-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 MPM3808GLE-12-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPM3808GLE-12-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808GLE-12-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPM3808GLE-12-AEC1-P?

MPM3808GLE-12-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPM3808GLE-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 MPM3808GLE-12-AEC1-P?

For technical support, including MPM3808GLE-12-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808GLE-12-AEC1-P requirements.

6.How does Aetrix verify that MPM3808GLE-12-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPM3808GLE-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 MPM3808GLE-12-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPM3808GLE-12-AEC1-P?

All MPM3808GLE-12-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808GLE-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 MPM3808GLE-12-AEC1-P part is unused and in its original packaging.

Return procedure for MPM3808GLE-12-AEC1-P:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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