Monolithic Power Systems Inc. EV2330C-TL-00A

Overview

EV2330C-TL-00A from Monolithic Power Systems is a fully assembled evaluation board for the MP2330C synchronous step-down converter, demonstrating 3A continuous output at 3.3V from a 4.2–24V input, operating at 650kHz with 75mΩ/40mΩ internal MOSFETs and constant-on-time control. It supports pre-bias startup, power-good indication, and full protection including OCP, SCP, UVP, and thermal shutdown.

For engineers reviewing the EV2330C-TL-00A datasheet, EV2330C-TL-00A pinout, EV2330C-TL-00A application, or EV2330C-TL-00A equivalent, this board enables rapid validation of MP2330C performance in compact DC/DC designs requiring fast transient response, forced PWM operation, and high efficiency across 5V–19V input rails.

Technical Context

The EV2330C-TL-00A implements the MP2330C IC in a fixed 3.3V output configuration using a 3.3µH shielded inductor (WPL6530H3R3MT), 22µF ×2 output capacitance, and precision feedback resistors (R1=40.2kΩ, R2=13kΩ) to set VOUT. Input filtering includes 22µF + 0.1µF ceramic staging.

It validates key MP2330C behaviors: constant-on-time (COT) control delivering <1ms startup time, hiccup-mode over-current protection, power-good assertion within 10% of nominal VOUT, and stable operation under 2.5A/µs load transients with <150mV undershoot at 3A step.

Key Specifications

Availability

EV2330C-TL-00A is available at Aetrix Electronics and suitable for DC/DC converter validation, power supply qualification, and embedded system bring-up requiring stable component supply, repeatable test conditions, and documented performance benchmarks.

Supply support for EV2330C-TL-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 MP2330C product line targets space-constrained, high-efficiency point-of-load applications in consumer electronics and industrial systems, emphasizing minimal external components, fast transient response, and robust protection.

FAQ

What input voltage range is validated on the EV2330C-TL-00A?

The board is characterized across 5V, 12V, 19V, and 24V input rails per test reports. Full functionality-including startup, regulation, and protection-is confirmed from 4.2V to 24V, matching the MP2330C's rated input range. Ripple, efficiency, and thermal data are provided for VIN = 19V specifically.

Can the output voltage be adjusted, and how?

Yes-VOUT is set by the R1/R2 feedback divider (40.2kΩ/13kΩ). Replacing R1 or R2 allows adjustment per MP2330C's VFB = 0.8V reference. The board includes test points and footprint space for alternate resistors; no PCB modification is required for standard 3.3V operation.

Does the board support enable and power-good functions?

Yes-EN is accessible via test point TP3 and accepts 1.3V–24V logic-high to activate regulation. PG is routed to TP4 and asserts high when VOUT is within ±10% of target; it requires an external pull-up (e.g., 3.3V via R8) as specified in the Quick Start Guide.

What inductor and capacitors are used, and are they mandatory?

The board uses Sunlord WPL6530H3R3MT (3.3µH, 6.6A Isat) and Murata GRM21BR61C226ME44L (22µF, 16V X5R) output caps. These parts meet MP2330C's stability and ripple requirements; substitutions must match DCR ≤25.5mΩ, Isat ≥6.6A, and capacitance ≥22µF with low ESR.

How is thermal performance validated on this board?

Thermal shutdown behavior is verified under sustained 3A load at VIN = 19V and TA = +25°C. The board layout places U1 (MP2330CGTL in SOT583) over internal ground planes and exposes thermal pad to bottom-layer copper, enabling surface temperature measurement up to 115°C before shutdown activation.

Is pre-bias startup supported, and how is it tested?

Yes-the board demonstrates reliable pre-bias startup with VOUT initially charged to 3.3V before enabling VIN. Test waveforms (page 3) show clean regulation without reverse current or oscillation, confirming MP2330C's internal circuitry prevents backfeed during hot-plug scenarios.