Monolithic Power Systems Inc. EVM3804-G-00A

Overview

EVM3804-G-00A from Monolithic Power Systems is an evaluation board for the MPM3804GG monolithic synchronous step-down DC-DC module, delivering 1.2V/0.6A output from 2.3–5.5V input in a 2mm × 2mm QFN10 package, featuring Constant-On-Time control, 11μA quiescent current, and integrated inductor for ultra-compact power delivery in portable electronics.

For engineers reviewing the EVM3804-G-00A datasheet, EVM3804-G-00A pinout, EVM3804-G-00A application, or EVM3804-G-00A equivalent, this board enables rapid validation of the MPM3804GG's load transient response, efficiency at light loads, EN/PG sequencing capability, and minimal external component count (only two ceramic capacitors and two FB resistors required).

Technical Context

The EVM3804-G-00A implements a fixed 1.2V output configuration using the MPM3804GG IC with R1 = R2 = 200kΩ and R3 = 100kΩ feedback network, supporting input voltages down to 2.3V and enabling 100% duty-cycle operation in dropout. It uses a 10µF input and 22µF output X5R ceramic capacitor set optimized for low ESR and high-frequency switching at 2.4 MHz.

This board demonstrates the MPM3804GG's COT control architecture-delivering fast transient response without external compensation-and integrates cycle-by-cycle over-current protection, thermal shutdown, and hiccup-mode short-circuit recovery, all verified under 25°C ambient with 5V input and 1.2V/0.6A load per test report Rev.1.0.

Key Specifications

Availability

EVM3804-G-00A is available at Aetrix Electronics and suitable for portable device prototyping, battery-powered IoT node development, and low-voltage I/O power validation requiring stable component supply and immediate functional verification.

Supply support for EVM3804-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 design centers across Asia and North America and global distribution.

The MPM3804 product line delivers fully integrated, ultra-compact DC-DC modules targeting space-constrained, battery-sensitive applications such as wearables, hearing aids, and wireless sensor nodes where minimal external components and low IQ are critical.

FAQ

What is the default output voltage of the EVM3804-G-00A?

The board is configured for a fixed 1.2V output using R1 = R2 = 200kΩ and R3 = 100kΩ in the feedback divider. This matches the most common low-power logic rail requirement and is verified per Figure 1 and test report Rev.1.0 with 5V input and 0.6A load.

Can the output voltage be adjusted, and how?

Yes-VOUT is adjustable down to 0.6V by modifying R1 and R2 per the formula R2 = R1 × (VOUT/0.6 − 1). The Quick Start Guide specifies R1 between 40kΩ and 200kΩ; for example, 1.8V requires R1 = 200kΩ and R2 = 100kΩ, confirmed in Section 5 of Rev.1.0.

Which IC does this board evaluate, and what package does it use?

EVM3804-G-00A evaluates the MPM3804GG, a monolithic 2mm × 2mm × 0.9mm QFN10 package integrating MOSFETs and inductor. The board layout (Figures 2–4) and BOM explicitly list U1 as MPM3804GG in QFN10, matching MPS's official package designation.

What external components are required to operate the board?

Only the on-board components are needed: C1 (10µF input), C2 (22µF output), R1/R2 (200kΩ each), and R3 (100kΩ). No additional parts are required-no inductor, compensation network, or bootstrap capacitor-as the MPM3804GG integrates all active and passive power-stage elements.

Does the board support power sequencing, and how is it implemented?

Yes-the MPM3804GG provides dedicated EN and Power Good (PG) pins, and the EVM3804-G-00A exposes both signals via test points. EN allows controlled startup/shutdown, while PG asserts high when VOUT is within ±5% of regulation, enabling coordination with other rails in multi-rail systems.

What protection features are validated on this evaluation board?

The board demonstrates cycle-by-cycle over-current protection, thermal shutdown, hiccup-mode short-circuit recovery, and output discharge-all inherent to the MPM3804GG and verified in EVB test results (pages 4–6, Rev.1.0) under 25°C ambient with 5V input and full 0.6A load.