Monolithic Power Systems Inc. EV2332H-TL-00A

Overview

EV2332H-TL-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP2332H synchronous step-down converter, a 1.2MHz, 2A, 4.2–18V-input monolithic DC/DC regulator in SOT583 package with 95mΩ/45mΩ internal MOSFETs, 200µA quiescent current, and power-good indication. It delivers regulated 3.3V output at up to 2A continuous load for compact consumer power rails.

For engineers reviewing the EV2332H-TL-00A datasheet, EV2332H-TL-00A pinout, EV2332H-TL-00A application, or EV2332H-TL-00A equivalent, this board enables rapid validation of MP2332H performance under real-world transient loads, thermal stress, startup/shutdown sequencing, and PG signal timing - critical for game console, set-top box, and flat-panel display power subsystem design.

Technical Context

The EV2332H-TL-00A implements the MP2332H's constant-on-time (COT) control architecture, enabling sub-10µs load transient response with no external compensation required. Its layout integrates 2.2µH shielded inductor (WPL6530H2R2MT), 22µF input/output ceramic capacitors, and precision feedback resistors (R1=40.2kΩ, R2=13kΩ) to achieve ±1% VOUT regulation at 3.3V across 0–2A.

Board-level features include EN-controlled soft-start (programmable via C4=6.8nF), pre-bias startup capability, hiccup-mode over-current protection, and thermal shutdown monitoring - all verified per MPS Rev.1.0 test report at VIN=12V, TA=+25°C with 500ns/div oscilloscope capture of VSW and IL waveforms.

Key Specifications

Availability

EV2332H-TL-00A is available at Aetrix Electronics and suitable for game console power validation, digital set-top box development, and flat-panel display subsystem testing requiring stable component supply and documented thermal/transient performance data.

Supply support for EV2332H-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 converters, LED drivers, and motor drivers for consumer, computing, and industrial markets.

The MP2332H product line targets space-constrained, high-efficiency point-of-load applications requiring fast transient response and minimal external components - optimized for 3.3V/5V rails in entertainment electronics.

FAQ

What input voltage range is supported on the EV2332H-TL-00A board?

The board supports 4.2V to 18V DC input, validated per MPS Rev.1.0 test report at 5V, 12V, and 18V. Input filtering uses dual 22µF X5R 0805 ceramics (C1, C2/C2A); operation below 4.2V will disable the MP2332H due to UVLO threshold.

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

Yes - replace R1 (40.2kΩ) and R2 (13kΩ) with values calculated per MP2332H feedback equation: VOUT = 0.8V × (1 + R1/R2). The board includes solder pads for alternative resistor placement; no PCB modification is needed for common outputs like 5V or 1.8V.

How is the enable (EN) function implemented and tested?

EN is routed to JP1 pin 1; apply >1.3V to enable, <1V to disable. The Quick Start Guide specifies driving EN with a logic signal or bench supply. Startup/shutdown waveforms (CH2=VEN) are captured in Figures 7–10 of the reference document at 1ms/div resolution.

Does the board support pre-bias startup, and how is it verified?

Yes - the MP2332H supports pre-bias startup, and the EV2332H-TL-00A demonstrates this with VOUT pre-charged to 3.3V before enabling EN. Test results (Figure 7, p.4) show clean startup without output voltage reversal or current surge when VOUT is initially biased.

What thermal performance can be expected during 2A continuous operation?

At VIN=12V, VOUT=3.3V, and TA=+25°C, the MP2332H junction temperature rise is ≤25°C above ambient per thermal imaging in the test report. The SOT583 package is mounted directly to 2oz copper with thermal vias; board-level thermal relief is provided by the large GND plane on Layer 2.

Is the power-good (PG) signal actively pulled up on the board?

No - PG is open-drain and requires external pull-up. R8 (100kΩ) connects PG to VOUT by default; for 3.3V systems, this provides valid logic-high assertion. For higher-voltage domains, replace R8 with a resistor tied to appropriate VCC (e.g., 5V or 12V).