Monolithic Power Systems Inc. EV3363-J-00A

Overview

EV3363-J-00A from Monolithic Power Systems is an evaluation board for the MP3363GJ fixed-frequency boost LED driver IC, designed to drive a single white LED string with input voltage as low as 1.8V and output up to 36V, supporting analog/PWM dimming on one pin and delivering up to 40mA LED current with 95% peak efficiency.

For engineers reviewing the EV3363-J-00A datasheet, EV3363-J-00A pinout, EV3363-J-00A application, or EV3363-J-00A equivalent, this board enables rapid validation of MP3363-based LED driver designs under real-world conditions including startup sequencing, dimming response, OVP behavior, and fault recovery across 1.8–36V input range and multi-LED string loads.

Technical Context

The EV3363-J-00A implements the MP3363GJ in TSOT23-8 package, configured as a non-synchronized boost converter with internal 40V/100mΩ power switch, 200kHz–2.2MHz programmable switching frequency, and 0.2V feedback reference enabling high-efficiency regulation of LED strings up to 40V.

It supports dual-mode dimming: PWM dimming below 2kHz and analog dimming above 5kHz on the shared EN/DIM pin, with built-in protections including cycle-by-cycle current limiting, UVLO, thermal shutdown, open/short LED detection, and short-FB protection.

Key Specifications

Availability

EV3363-J-00A is available at Aetrix Electronics and suitable for LCD backlighting, portable lighting systems, and industrial status indicator design requiring stable component supply and fast prototyping turnaround.

Supply support for EV3363-J-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 power management ICs, with core expertise in DC/DC converters, LED drivers, and motor drivers for consumer, industrial, and automotive applications.

The MP3363 product line delivers high-efficiency, low-V_IN boost LED drivers optimized for space-constrained portable and battery-powered lighting, featuring integrated power switches and dual-mode dimming in ultra-small TSOT23-8 packages.

FAQ

What is the primary function of the EV3363-J-00A board?

The EV3363-J-00A is a fully assembled evaluation board for the MP3363GJ boost LED driver IC. It provides a ready-to-test platform to validate LED string operation, dimming performance, protection responses, and efficiency across 1.8–36V input and up to 40V output, with all passive components and layout optimized per MPS reference design.

Does the board support both analog and PWM dimming?

Yes - the EN/DIM pin accepts both dimming modes without external circuitry: apply PWM signals below 2kHz for PWM dimming, and above 5kHz for analog dimming. Test results confirm clean dimming transitions and stable current regulation across both modes at 10kHz, 2kHz, and 5kHz frequencies.

What protection features are implemented and verified on this board?

The board demonstrates full implementation of MP3363GJ protections: UVLO (1.8V start-up), open/short LED detection, short-FB response, thermal shutdown, and cycle-by-cycle current limiting. Test reports show recovery from inductor short, diode short, and overvoltage events without latch-up or damage.

Can the switching frequency be adjusted, and how?

Yes - F_SW is set by the resistor between OSC/SYNC and GND (R9 = 10Ω on board), yielding ~2.2MHz. Frequency can be reconfigured from 200kHz to 2.2MHz by changing R9 per the MP3363 datasheet's OSC resistor table; higher frequencies reduce inductor size but increase switching losses.

What LED configurations has the board been tested with?

The board was validated with 3–10 white LEDs in series (e.g., 3×LED ≈ 9V, 10×LED ≈ 30V), delivering stable 40mA current at VIN = 10V. Efficiency measurements show >90% at 6–10 LED loads, and startup behavior is confirmed down to 1.8V input with 3-LED load.

Is the board RoHS-compliant and lead-free?

Yes - all components on EV3363-J-00A, including the MP3363GJ IC, capacitors, resistors, and diodes, are lead-free and halogen-free, compliant with EU RoHS Directive 2011/65/EU. MPS confirms green status for this part family on its official Quality Assurance page.