Monolithic Power Systems Inc. EV2330H-TL-00A

Overview

EV2330H-TL-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP2330H synchronous step-down converter, supporting 4.2–24V input, 3.3V/3A output, 1.2MHz switching, and constant-on-time control with power-good indication and thermal shutdown.

For engineers reviewing the EV2330H-TL-00A datasheet, EV2330H-TL-00A pinout, EV2330H-TL-00A application, or EV2330H-TL-00A equivalent, this board enables rapid validation of high-efficiency DC/DC conversion in space-constrained consumer electronics with fast transient response and pre-bias startup capability.

Technical Context

The EV2330H-TL-00A implements the MP2330H IC in a fully assembled SOT583-based reference design, delivering 3A continuous output at 3.3V from up to 24V input using a 1.5µH inductor and integrated 75mΩ/40mΩ MOSFETs. It operates in forced PWM mode with programmable soft-start and supports pre-bias startup.

Constant-on-time (COT) control ensures sub-10µs load transient response and eliminates loop compensation components. Protection includes over-current hiccup, under-voltage lockout, and thermal shutdown - all verified per test reports at 25°C with 19V input and 3.3V output.

Key Specifications

Availability

EV2330H-TL-00A is available at Aetrix Electronics and suitable for game console power rails, digital set-top box DC/DC stages, and flat-panel display subsystems requiring stable component supply and rapid functional validation.

Supply support for EV2330H-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 MP2330H product line targets space- and efficiency-critical consumer power supplies, delivering high integration (dual MOSFETs, COT control, PG) in ultra-small SOT583 for next-gen portable and entertainment devices.

FAQ

What input voltage range is validated on the EV2330H-TL-00A?

The board is tested across 5V, 12V, 19V, and 24V inputs per official test reports. Minimum operating input is 4.2V per MP2330H specifications; operation below 4.2V is not supported due to UVLO threshold.

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

No - the EV2330H-TL-00A is configured for fixed 3.3V output via internal resistor divider (R1=40.2kΩ, R2=13kΩ). Output adjustment requires redesigning feedback network and verifying stability per MP2330H datasheet guidelines.

Does the board support pre-bias startup?

Yes - the MP2330H IC on this board supports pre-bias startup, allowing safe turn-on when output capacitor is pre-charged. Verified in test reports with VOUT=3.3V before EN assertion and VIN ramp-up.

How is the Power Good (PG) signal used?

PG is an open-drain output pulled up externally (e.g., via R8 to 3.3V). It asserts high when VOUT reaches and maintains ±5% of 3.3V; deasserts during fault conditions including OCP, UVP, or thermal shutdown.

What inductor is installed, and can it be substituted?

L1 is Sunlord WPL6530H1R5MT (1.5µH, DCR=11.5mΩ, Isat=11.5A). Substitution is possible but must match saturation current, DCR, and footprint; deviation affects efficiency, thermal performance, and transient response.

Is thermal performance characterized on this board?

Yes - thermal shutdown behavior is validated in test reports. At 3A load and 24V input, board surface temperature peaks at ≤78°C under free-air conditions; copper pour and airflow significantly impact sustained operation.