Monolithic Power Systems Inc. EV2384-G-00A

Overview

EV2384-G-00A from Monolithic Power Systems is an evaluation board for the MP2384 synchronous step-down converter, configured to deliver 3.3V at up to 4A continuous output from 8–24V input. It implements Adaptive Constant-On-Time (COT) control, features remote differential sensing, and integrates a QFN-11 (2mm × 2mm) MP2384GG IC with internal low-R_DS(ON) MOSFETs and DC auto-tune loop compensation.

For engineers reviewing the EV2384-G-00A datasheet, EV2384-G-00A pinout, EV2384-G-00A application circuit, or EV2384-G-00A equivalent evaluation platforms, this board provides validated reference design, thermal performance data, load transient waveforms, and BOM-level component sourcing for rapid prototyping of compact 3.3V/4A point-of-load supplies in space-constrained systems.

Technical Context

The EV2384-G-00A implements the MP2384's fixed 700kHz switching frequency and adaptive COT architecture to achieve fast transient response (<200µs recovery from 2A→4A load step) without external compensation. Its DC auto-tune loop dynamically adjusts control parameters based on input voltage, output load, and temperature to maintain ±1% output regulation across line and load variations.

Board-level design includes remote differential sense traces for accurate VOUT feedback, integrated power-good (PG) indicator, internal soft-start (1.5ms), and output discharge functionality. Protection features-OCP, OVP, UVP, and thermal shutdown-are fully enabled and verified per test reports at VIN = 19V, VOUT = 3.3V, L = 3.3µH.

Key Specifications

Availability

EV2384-G-00A is available at Aetrix Electronics and suitable for laptop power delivery, server point-of-load conversion, and networking system prototyping requiring stable component supply, full protection validation, and production-ready reference design fidelity.

Supply support for EV2384-G-00A 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 analog and power ICs, with core expertise in DC/DC conversion, motor drivers, and LED lighting controllers.

The MP2384 product line delivers ultra-compact, high-efficiency synchronous buck converters for space- and thermally constrained applications such as thin-client computing, SSD power rails, and telecom infrastructure.

FAQ

What input voltage range is supported, and how is overvoltage protection implemented?

The EV2384-G-00A accepts 8V–24V input and implements OVP at 26.5V (typical), clamping the output and triggering thermal shutdown if sustained. The board uses the MP2384's internal comparator and latch-off behavior-no external TVS or crowbar circuitry is required.

Can the output voltage be adjusted to 5V or other values?

No-the EV2384-G-00A is factory-configured for fixed 3.3V output using internal feedback resistors. To evaluate adjustable outputs, users must replace the MP2384GG with an adjustable variant (e.g., MP2384DG) and modify the feedback network per datasheet Section 8.2.

How is enable functionality implemented, and what are the voltage thresholds?

The EN pin is routed to a test point and accepts 0–4.5V logic. The MP2384 turns on when EN > 1.4V and off when EN < 0.4V. R7 (453kΩ) sets the VIN UVLO threshold to 7.5V; for 5V input testing, R7 must be changed to 200kΩ per schematic note.

Does the board include remote sensing, and how is it connected?

Yes-remote differential sense is implemented via dedicated SNS+ and SNS− pads adjacent to the output capacitor bank. These connect directly to the MP2384's FB and AGND pins, enabling ±0.5% load regulation accuracy independent of PCB trace resistance.

What inductor and capacitors are used, and are they production-grade?

The board uses Sunlord WPL8540H3R3MT (3.3µH, 11A I_SAT) and Murata GRM31CR61E226KE15L (22µF, 25V X5R) - all components are commercial-grade, RoHS-compliant, and listed in the official BOM with full manufacturer part numbers and package codes.

Is thermal performance data available, and what is the maximum ambient temperature at full load?

Thermal imaging and temperature rise tests show ≤25°C rise above ambient at 4A/12V input with 200LFM airflow. Derating begins above +65°C ambient; full 4A output is guaranteed up to +70°C case temperature per Rev. 1.0 test report page 4.