Monolithic Power Systems Inc. MPM3807GLE-18-AEC1-P

Overview

MPM3807GLE-18-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated synchronous step-down power module delivering fixed 1.8V output at up to 2A continuous current. It integrates power MOSFETs (70mΩ HS / 40mΩ LS), a 470nH inductor, compensation network, and thermal shutdown in a wettable-flank QFN-15 (3mm×4mm×1.6mm) package. Designed for automotive ADAS sensors and camera modules, it operates across 2.5V–5.5V input with 1% output regulation accuracy and 2.4MHz switching frequency.

For engineers reviewing the MPM3807GLE-18-AEC1-P datasheet, MPM3807GLE-18-AEC1-P pinout, MPM3807GLE-18-AEC1-P application, or MPM3807GLE-18-AEC1-P equivalent, key selection factors include its AEC-Q100 qualification, integrated inductor and MOSFETs, 1.8V fixed output with ±2% tolerance over temperature, PG signal timing (90% VFB rise threshold), and soft-start programmability via external capacitor.

Technical Context

The MPM3807GLE-18-AEC1-P uses constant-on-time (COT) control with VIN feed-forward to maintain stable 2.4MHz switching across 2.5V–5.5V input and load transients, enabling fast response without loop compensation. Its internal 0.6V reference compares against FB voltage-floating in fixed-output mode-and drives high-side P-channel and low-side N-channel MOSFETs with integrated gate drivers.

It implements Advanced Asynchronous Modulation (AAM) and zero-current detection (ZCD) to sustain discontinuous conduction mode (DCM) under light loads, reducing quiescent current to 21µA in sleep mode. Protection includes cycle-by-cycle current limiting (peak 3.5A, valley 2A), thermal shutdown at 170°C, output OVP (115% VFB), and hiccup-mode SCP.

Key Specifications

Pinout & Package

MPM3807GLE-18-AEC1-P is housed in a wettable-flank QFN-15 package (3mm × 4mm × 1.6mm) with exposed thermal pad. The package supports automated optical inspection (AOI) and improves solder joint reliability in automotive reflow processes.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down power module applications.

Compared with TPS82084SILR and MAX20010CATP/V+T, MPM3807GLE-18-AEC1-P uniquely combines AEC-Q100 Grade 1, integrated inductor, PG signaling, and lowest quiescent current (21µA), making it optimal for space-constrained, safety-critical automotive domains where reliability and startup coordination are essential.

Availability

MPM3807GLE-18-AEC1-P is available at Aetrix Electronics and suitable for automotive ADAS sensors, camera modules, and infotainment systems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for MPM3807GLE-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, with design centers across Asia and North America.

The MPM3807 product line delivers fully integrated, AEC-Q100-qualified DC/DC power modules targeting automotive subsystems where board space, thermal performance, and functional safety compliance are critical constraints.

FAQ

What is the purpose of the OUT_S pin on the MPM3807GLE-18-AEC1-P?

The OUT_S pin serves dual functions: it provides precision output voltage sensing for regulation feedback and activates an internal 150Ω discharge path to rapidly bleed stored charge from the output capacitor during shutdown. This prevents residual voltage from interfering with downstream logic states or causing latch-up in powered-off subsystems.

Does the MPM3807GLE-18-AEC1-P require external compensation components?

No. The MPM3807GLE-18-AEC1-P integrates a complete compensation network-including error amplifier, ramp generator, and internal resistors/capacitors-enabling stable operation with only input and output capacitors. This eliminates tuning effort and reduces design risk compared to controller-based solutions.

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

The PG pin asserts high-Z until VOUT reaches ≥90% of 1.8V (1.62V), then pulls high via external pull-up. If VOUT drops below 85% (1.53V) due to overload or short circuit, PG pulls low. During hiccup-mode SCP, PG toggles between high and low states synchronized with restart attempts.

Can the MPM3807GLE-18-AEC1-P operate with input voltage below 2.5V?

No. The device incorporates an undervoltage lockout (UVLO) with a rising threshold of 2.45V and hysteresis of 0.2V. Operation below 2.3V is prohibited; attempting to bias VIN below this range will disable switching and force the part into shutdown state.

What is the maximum recommended PCB copper area for the thermal pad?

MPS recommends connecting the exposed thermal pad to a minimum 100mm² solid copper plane on the PCB's inner or bottom layer using ≥6 thermal vias (0.3mm diameter). This achieves θJA ≈ 53°C/W on a 4-layer 2oz copper board, ensuring safe operation at 2A continuous load in +85°C ambient.

Is the MPM3807GLE-18-AEC1-P compatible with lead-free reflow profiles?

Yes. The device is RoHS-compliant, halogen-free, and qualified for standard lead-free reflow profiles with peak temperature up to 260°C. Its wettable flank package supports automated optical inspection of solder joints, meeting IPC-A-610 Class 3 requirements for automotive production.

How does AAM mode improve light-load efficiency?

AAM mode reduces switching frequency and disables non-essential blocks (e.g., error amplifier) under light loads, lowering quiescent current to 21µA. Combined with zero-current detection, it maintains DCM operation-eliminating reverse inductor current and associated conduction losses-without requiring external control signals.