Monolithic Power Systems Inc. EVM3510A-QV-00A

Overview

EVM3510A-QV-00A from Monolithic Power Systems is an evaluation board for the MPM3510A synchronous step-down Mini-Module DC/DC regulator, integrating power MOSFETs, inductor, and input/output capacitors. It delivers 3.3 V at up to 1.2 A continuous output over a 4.5–36 V input range, with fixed 1.15 MHz switching frequency, power-good indicator, and valley-current OCP protection-used for rapid validation of compact 3.3 V supply rails in space-constrained industrial and automotive subsystems.

For engineers reviewing the EVM3510A-QV-00A datasheet, EVM3510A-QV-00A pinout, EVM3510A-QV-00A application, or EVM3510A-QV-00A equivalent, this board enables fast functional verification of the MPM3510A's load regulation, thermal shutdown behavior, SYNC interface timing, and PG signal assertion under real-world line/load transients.

Technical Context

The EVM3510A-QV-00A implements a complete buck converter reference design centered on the MPM3510A IC, which integrates high- and low-side MOSFETs, a shielded power inductor, and internal compensation. Its input stage uses four parallel 0805 ceramic capacitors (C1A/C1B/CIN1–CIN5), while the output employs dual 0805 47 µF X5R ceramics (C2A/C2B) for low-impedance filtering.

Board-level features include a 3-pin SYNC interface supporting 800 kHz–2 MHz external clock synchronization, a dedicated VEMI node for optional EMI filter insertion, and resistor-divider network (R1/R2) pre-configured for 3.3 V output via FB pin-enabling immediate operation without component changes.

Key Specifications

Availability

EVM3510A-QV-00A is available at Aetrix Electronics and suitable for industrial controls, automotive body electronics, and medical imaging subsystems requiring stable component supply, quick-turn power validation, and documented EMI mitigation paths.

Supply support for EVM3510A-QV-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 MPM3510A product line targets space-constrained applications needing fully integrated, thermally robust, and EMI-optimized DC/DC solutions-designed to replace discrete buck designs and linear regulators in industrial, automotive, and telecom systems.

FAQ

What input voltage range is supported, and what happens outside that range?

The EVM3510A-QV-00A operates reliably from 4.5 V to 36 V input. Below 4.5 V, the MPM3510A fails to start due to undervoltage lockout. Above 36 V risks permanent damage to internal MOSFETs and the integrated inductor-absolute maximum VIN is 36 V as specified in the MPM3510A datasheet.

How is the 3.3 V output configured, and can it be adjusted?

Output is set to 3.3 V using R1 = 82 kΩ and R2 = 26.1 kΩ forming a feedback divider on the FB pin. To adjust, replace R1/R2 with values satisfying VOUT = 0.8 V × (1 + R1/R2); minimum supported VOUT is 0.8 V per MPM3510A specification.

Does the board support external clock synchronization, and what are the timing requirements?

Yes-the EN/SYNC pin accepts TTL/CMOS-compatible clocks from 800 kHz to 2 MHz. The internal oscillator locks to the rising edge of the external signal. No pull-up or level-shifting is required; drive directly from a microcontroller GPIO or clock generator.

What thermal performance can be expected during 1.2 A continuous operation?

At 24 V input and 3.3 V/1.2 A output, board surface temperature rise is ≤25°C above ambient (TA = 25°C) with no airflow, per Rev. 1.0 test report. Thermal shutdown activates at ≥150°C junction temperature, confirmed via thermal imaging in the EVB documentation.

Is the power-good (PG) signal actively driven, and what logic levels does it use?

PG is an open-drain output pulled high externally (100 kΩ R4 to VOUT). It asserts low when VOUT is within ±10% of target (i.e., 2.97–3.63 V for 3.3 V setting) and remains low during startup, fault, or shutdown-verified in waveform captures on page 3 of the reference document.

Can the EVM3510A-QV-00A be used to evaluate EMI performance, and how?

Yes-the board includes a dedicated VEMI test point adjacent to GND for adding external EMI filters (e.g., ferrite beads + capacitors). Test results on pages 4–5 show conducted EMI waveforms measured with 24 V input and 3.3 V/1.2 A load, enabling direct comparison against CISPR 25 Class 5 limits.