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

Monolithic Power Systems Inc. MPM3808CGLE-AEC1-Z

Name: MPM3808CGLE-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPM3808CGLE-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPM3808CGLE-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: DC DC Converters

Package:: 15-PowerLFQFN Module

Datasheet:: MPM3808CGLE-AEC1-Z.pdf

Description:: 5.5V, 3A, 2.4MHZ, SYNCHRONOUS ST

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPM3808CGLE-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, 2.4MHz switching frequency, and 1% FB voltage accuracy across –40°C to +150°C junction temperature. It supports adjustable output (via external resistor divider) and features constant-on-time (COT) control, FCCM operation, and wettable-flank QFN-15 packaging for automotive ADAS camera modules.

For engineers reviewing the MPM3808CGLE-AEC1-Z datasheet, MPM3808CGLE-AEC1-Z pinout, MPM3808CGLE-AEC1-Z application, or MPM3808CGLE-AEC1-Z equivalent, key selection criteria include its AEC-Q100 qualification, integrated 50mΩ/26mΩ MOSFETs, 0.6V internal reference, PG open-drain indicator, and support for pre-biased start-up and hiccup-mode short-circuit protection in space-constrained automotive power rails.

Technical Context

The MPM3808CGLE-AEC1-Z implements a constant-on-time (COT) control architecture with VIN feed-forward, enabling stable 2.4MHz switching across 2.5V–6V input and maintaining fast transient response without external compensation. Its FCCM mode ensures continuous inductor current under all load conditions, eliminating audible noise and improving light-load regulation.

Internally integrated components include a 470nH power inductor (±20% tolerance), matched P-channel high-side and N-channel low-side MOSFETs (R_DS(ON) = 50mΩ / 26mΩ at V_IN = 5V), and a precision 0.6V ±1% feedback reference. The device supports 100% duty cycle for LDO-like dropout and embeds thermal shutdown (170°C), cycle-by-cycle current limiting (5A peak), and output over-voltage protection (115% of V_FB).

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.5V to 6V - Enables direct connection to automotive 3.3V/5V rails and battery-supervised systems.
Output Current	Up to 3A continuous - Sustains full load in ADAS image sensors and infotainment SoCs without external heatsinking.
Switching Frequency	2.4MHz ±12.5% - Allows use of compact 22µF ceramic output capacitors and minimizes EMI filter size.
Feedback Accuracy	±1% at TJ = –40°C to +150°C - Ensures stable core voltage regulation for DSPs and vision processors across full automotive temperature range.
Thermal Shutdown	170°C with 20°C hysteresis - Prevents permanent damage during sustained overload while enabling automatic recovery after cooling.
Power Good Threshold	90% of V_FB rising / 85% falling - Provides clean, glitch-filtered (70µs deglitch) rail-valid signal for system sequencers.
Soft-Start Current	3µA (adjustable version) - Sets controlled V_OUT ramp rate via external capacitor; prevents inrush into downstream capacitance.

Pinout & Package

MPM3808CGLE-AEC1-Z is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm), optimized for automated optical inspection (AOI) and enhanced solder joint reliability in automotive PCB assembly.

Pin/Terminal	Circuit Role	Design Meaning
1 FB	Feedback input	Connects to resistor divider for adjustable V_OUT; referenced to 0.6V internal bandgap; float for fixed-output variants.
2 PG	Open-drain power good	Asserts high when V_FB ≥ 90% of 0.6V; sinks 1mA at 0.4V; requires external pull-up for logic-level signaling.
3 VIN	Main input supply	Accepts 2.5V–6V; requires local 10µF ceramic decoupling; UVLO thresholds at 2.45V (rising) / 2.1V (falling).
4–6 SW	Switch node	Internal drain of high-side P-MOSFET; connects directly to integrated inductor; carries high di/dt switching current.
7–9 OUT	Power output	Delivers regulated V_OUT to load; requires ≥22µF low-ESR ceramic output capacitor; includes internal discharge path (120Ω).
10–11 GND	Ground reference	Common return for input/output caps and IC substrate; must connect to large copper pour with multiple vias for thermal and EMI performance.
12 EN	Enable control	Active-high digital input; 0.9V rising / 0.65V falling threshold; internal 2MΩ pulldown enables default-off safety behavior.
13 SS	Soft-start timing	Charged by internal 3µA current source; sets V_OUT ramp time; minimum 1nF capacitor required.
14 OUT_S	Output sense & discharge	Provides accurate V_OUT sensing for regulation; also serves as discharge path terminal during shutdown.
15 DNC	No-connect	Internally tied to SW; must remain unconnected on PCB; no routing or vias permitted beneath this pad.

Key Features

Feature	Design Value
AEC-Q100 Grade 1 qualification	Validated for automotive applications with guaranteed operation from –40°C to +150°C junction temperature.
Integrated power train	Combines 50mΩ HS-FET, 26mΩ LS-FET, and 470nH shielded inductor in single QFN-15 package-reducing BOM count by 12+ discrete parts.
FCCM across full load	Maintains constant 2.4MHz switching regardless of load, eliminating frequency modulation artifacts and simplifying EMI filtering.
Wettable flank package	Enables reliable AOI inspection of solder joints on bottom-side pads-critical for zero-defect automotive manufacturing.
Hiccup-mode short-circuit protection	Enters periodic restart cycle upon hard short, limiting average power dissipation and preventing thermal runaway.

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 point-of-load regulator delivering stable 1.2V/1.8V to sensor analog and digital cores.

Use Value: Integrated inductor and FCCM operation suppress switching noise that could couple into analog pixel readout paths.

Use Scenario: Supplying radar transceiver MMICs and LiDAR time-of-flight controllers in front-end ADAS ECUs.

IC Role / Device Role / Timing Role: Compact, thermally robust DC/DC converter meeting ASIL-B functional safety constraints for sensor power domains.

Use Value: AEC-Q100 Grade 1 rating and –40°C to +150°C operation ensure uninterrupted power during engine-bay thermal cycling.

Automotive Infotainment

Automotive V2X

Use Scenario: Generating 3.3V/5V rails for touch-screen controllers, audio codecs, and display drivers in head-unit systems.

IC Role / Device Role / Timing Role: Secondary buck converter supporting multi-rail power sequencing with EN and PG signals.

Use Value: Pre-biased start-up and 100% duty cycle capability allow seamless integration with always-on backup supplies and wake-on-RF circuits.

Use Scenario: Powering DSRC/WAVE or C-V2X communication modules requiring low-noise, fast-transient 1.2V core voltage.

IC Role / Device Role / Timing Role: High-efficiency, EMI-optimized step-down module co-located near RF front-end ICs.

Use Value: MeshConnect™ flip-chip construction and 2.4MHz operation minimize conducted emissions that interfere with 5.9GHz V2X band reception.

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
TPS82084SILR	2A output, 2.2MHz, integrated inductor, but only rated to +125°C ambient (non-AEC-Q100).	Lacks automotive qualification and extended temperature support; unsuitable for under-hood or ADAS sensor placement.	Select only for non-automotive portable industrial or medical devices where AEC-Q100 is not mandated.
MAX20077ATCA/VY+	3A, 2.1MHz, AEC-Q100 Grade 1, but uses external inductor and requires 7 external components vs. MPM3808C's 3.	Higher board area and layout sensitivity; less suitable for ultra-compact camera modules with strict height limits.	Prefer when design requires programmable soft-start or adjustable current limit not offered by MPM3808C.

Compared with TPS82084SILR and MAX20077ATCA/VY+, the MPM3808CGLE-AEC1-Z uniquely combines AEC-Q100 Grade 1 compliance, 3A output, fully integrated inductor/MOSFETs, and wettable-flank packaging-enabling first-pass automotive qualification with minimal footprint and zero external magnetics.

Availability

MPM3808CGLE-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor power supplies, and infotainment subsystems requiring stable component supply with full AEC-Q100 traceability and long-term production support.

Supply support for MPM3808CGLE-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.

The MPM3808C product line delivers fully integrated, AEC-Q100-qualified DC/DC modules targeting space- and thermal-constrained automotive subsystems-including camera, radar, and V2X edge nodes-where reliability, small size, and fast transient response are critical.

FAQ

What is the purpose of the OUT_S pin on the MPM3808CGLE-AEC1-Z?

The OUT_S pin serves dual functions: it provides precise output voltage sensing for regulation feedback and acts as the dedicated discharge path terminal during shutdown. When enabled, an internal 120Ω resistor between OUT_S and GND actively discharges the output capacitor, preventing residual voltage from interfering with downstream logic sequencing or causing latch-up in powered-off states.

Can the MPM3808CGLE-AEC1-Z operate with a pre-biased output?

Yes-the MPM3808CGLE-AEC1-Z supports pre-biased start-up. When EN is pulled high, the device initiates soft-start regardless of existing voltage on the OUT pin. This feature ensures reliable power sequencing in systems where auxiliary rails may be active before main supply enablement, such as in automotive domain controllers with multiple independent power domains.

How does the hiccup-mode short-circuit protection work?

Upon detecting a hard short, the MPM3808CGLE-AEC1-Z disables switching, discharges the SS capacitor, and enters a timed recovery cycle. After SS voltage drops fully, the device attempts a new soft-start. This hiccup pattern repeats until the fault clears, limiting average power dissipation to safe levels and preventing thermal damage during sustained overloads or board-level shorts.

Is external compensation required for stability?

No-MPM3808CGLE-AEC1-Z integrates a complete compensation network internally. Its constant-on-time (COT) control architecture eliminates the need for external Type-II or Type-III compensation components, reducing design complexity and PCB area while ensuring stable operation across all input voltages, loads, and temperatures without tuning.

What distinguishes the wettable flank QFN-15 package?

The wettable flank variant features solderable sidewalls on all perimeter pads, enabling automated optical inspection (AOI) of solder fillets post-reflow. This enhances process yield and field reliability in automotive manufacturing by verifying solder joint integrity-especially critical for power modules subject to thermal cycling and mechanical vibration in vehicle environments.

Does the MPM3808CGLE-AEC1-Z support adjustable output voltage?

Yes-the MPM3808CGLE-AEC1-Z is the adjustable-output variant (denoted by "-AEC1", not "-08"/"-12"/"-18"). Output voltage is set using an external resistor divider from OUT to GND connected to the FB pin, with regulation referenced to the internal 0.6V ±1% bandgap. Fixed-output versions require different part numbers.

What is the minimum recommended soft-start capacitor value?

The minimum recommended soft-start capacitor is 1nF for the MPM3808CGLE-AEC1-Z (adjustable version), based on its typical 3µA SS charge current. Using 1nF yields ~200ms soft-start time; larger values extend ramp time linearly and help prevent inrush into high-capacitance loads like FPGA configuration banks or DDR memory rails.

MPM3808CGLE-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:: 0.6 ~ 5V

Voltage - Output 2:: -

Voltage - Output 3:: -

Voltage - Output 4:: -

Current - Output (Max):: 3A

Power (Watts):: 15 W

Voltage - Isolation:: -

Applications:: -

Features:: Adjustable Output

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-AEC1-Z FAQ

1.How can I place an order for MPM3808CGLE-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPM3808CGLE-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-AEC1-Z reliable?

The price and inventory of MPM3808CGLE-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-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPM3808CGLE-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3808CGLE-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPM3808CGLE-AEC1-Z?

MPM3808CGLE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPM3808CGLE-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-AEC1-Z?

For technical support, including MPM3808CGLE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3808CGLE-AEC1-Z requirements.

6.How does Aetrix verify that MPM3808CGLE-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPM3808CGLE-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-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPM3808CGLE-AEC1-Z?

All MPM3808CGLE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3808CGLE-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-AEC1-Z part is unused and in its original packaging.

Return procedure for MPM3808CGLE-AEC1-Z:

1.Submit a request within 90 days.

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

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