Monolithic Power Systems Inc. MPM3807GLE-12-AEC1-Z

Overview

MPM3807GLE-12-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 2A continuous output at fixed 1.2V (±2% regulation), operating from 2.5V–5.5V input, and featuring constant-on-time control for fast transient response in automotive ADAS and camera modules.

For engineers reviewing the MPM3807GLE-12-AEC1-Z datasheet, MPM3807GLE-12-AEC1-Z pinout, MPM3807GLE-12-AEC1-Z application, or MPM3807GLE-12-AEC1-Z equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and efficiency performance across -40°C to +150°C, and real-world substitution guidance for automotive power rail design.

Technical Context

The MPM3807GLE-12-AEC1-Z implements a constant-on-time (COT) control architecture with VIN feed-forward, enabling stable 2.4MHz switching across its full 2.5V–5.5V input range and delivering tight line/load regulation (±0.3% load, ±0.2% line). Its internal 470nH inductor and matched 70mΩ/40mΩ HS/LS MOSFETs support high-efficiency operation down to 21µA quiescent current in sleep mode.

It integrates fault protection including cycle-by-cycle current limiting (peak 3.5A, valley 2A), thermal shutdown at 170°C, output over-voltage protection at 115% of VOUT, and open-drain power-good signaling with 90% VFB threshold-enabling robust power sequencing in safety-critical automotive systems.

Key Specifications

Pinout & Package

MPM3807GLE-12-AEC1-Z uses a wettable flank QFN-15 package (3mm × 4mm × 1.6mm) with exposed thermal pad for enhanced heat transfer and solder joint inspection. Pin 15 (DNC) is internally connected to SW and must remain unconnected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPSM84203RMLR and MAX20075ATPA/VY+, the MPM3807GLE-12-AEC1-Z offers superior integration (integrated inductor), smaller footprint, lower IQ (21µA vs 45µA), and optimized EMI performance for space-constrained 1.2V automotive cores-making it ideal where size, efficiency, and qualification are jointly critical.

Availability

MPM3807GLE-12-AEC1-Z is available at Aetrix Electronics and suitable for automotive camera modules, ADAS sensor nodes, infotainment processors, and V2X communication systems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for MPM3807GLE-12-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 over two decades of innovation in DC-DC conversion, motor drivers, and automotive-grade solutions.

The MPM3807 product line delivers fully integrated, AEC-Q100-qualified power modules targeting space- and reliability-constrained automotive subsystems-including ADAS, body electronics, and infotainment-where minimal external components and guaranteed thermal performance are essential.

FAQ

What is the purpose of the OUT_S pin on the MPM3807GLE-12-AEC1-Z?

The OUT_S pin serves dual functions: it provides precise output voltage sensing for regulation feedback and activates an internal 150Ω discharge path to the GND plane during shutdown. This ensures rapid VOUT decay (<1ms to <100mV) without external circuitry-critical for safe power sequencing in automotive microcontrollers and FPGAs.

Can the MPM3807GLE-12-AEC1-Z operate with input voltage below 2.5V?

No. The device has a hard under-voltage lockout (UVLO) with a rising threshold of 2.45V and hysteresis of 0.2V. Operation below 2.3V VIN is prohibited; attempting to power it at 2.2V will prevent startup and may cause erratic behavior due to insufficient gate drive for internal MOSFETs.

How does the PG pin behave during output over-voltage events?

During an OVP event (VOUT ≥ 115% of 1.2V), the PG pin remains asserted high until the fault clears. It does not toggle or pulse-it stays high as long as VFB ≥ 90% of 0.6V reference. Only sustained undervoltage (VFB < 85% of 0.6V) forces PG low, providing unambiguous power-good status for host controllers.

Is external soft-start capacitor mandatory for reliable startup?

Yes. A minimum 1nF capacitor between SS and GND is required to limit inrush current and prevent input voltage sag during startup. Omitting it risks triggering input UVLO or causing output overshoot >10%, especially with low-ESR ceramic output capacitors and high input capacitance.

Does the MPM3807GLE-12-AEC1-Z support parallel operation for higher current?

No. The MPM3807 series lacks current-sharing circuitry or synchronization inputs. Attempting parallel operation causes phase mismatch, unequal current distribution, and potential instability. For >2A, select the pin-compatible MPM3808 (3A) or use independent regulators with staggered enable timing.

What is the maximum allowable output capacitance?

The datasheet specifies no hard upper limit, but stability analysis shows phase margin degrades above 100µF with standard 22µF recommended. Using >47µF requires re-evaluating compensation via SS capacitor tuning and may necessitate external RC network on FB for damping.

How is thermal performance affected by PCB layout in automotive applications?

Thermal resistance drops from θJA = 65°C/W (JEDEC board) to ~53°C/W on a 6.3cm² 4-layer board with 2oz copper and 6+ thermal vias to inner ground planes. In automotive under-hood layouts, inadequate copper area increases junction temperature by >25°C at 2A-requiring derating to 1.6A unless thermal pads are fully exposed and soldered.