Monolithic Power Systems Inc. EV2183-TL-00A

Overview

EV2183-TL-00A from Monolithic Power Systems is a fully assembled, tested evaluation board for the MP2183GTL 3A synchronous step-down DC/DC converter. It implements a fixed 1.2V output configuration using a 1µH inductor, dual 22µF ceramic output capacitors, and 200kΩ feedback resistors, operating from 2.5V–5.5V input with up to 95% peak efficiency at 3.6V_IN/1.2V_OUT.

For engineers reviewing the EV2183-TL-00A datasheet, EV2183-TL-00A pinout, EV2183-TL-00A application, or EV2183-TL-00A equivalent, this board enables rapid validation of MP2183GTL performance-including load transient response (0.1A→3A in 80µs), power-good signaling, EN-controlled sequencing, short-circuit hiccup recovery, and thermal behavior under real PCB layout conditions.

Technical Context

The EV2183-TL-00A implements the MP2183GTL's Constant-On-Time (COT) control architecture, enabling fast line/load transient response without external compensation. It integrates 65mΩ high-side and 35mΩ low-side MOSFETs, supports 100% duty-cycle operation, and delivers regulated 1.2V output with ±1% FB accuracy across temperature.

Tested per MPS Rev. 1.1 documentation, the board uses a WE 74437324010 1.0µH inductor (R_DC = 27mΩ, I_SAT = 9.0A) and Murata GRM21BR61C226ME44L 22µF/16V X5R output capacitors. Input capacitance is optimized for VIN ≥ 3.3V; below that, additional input capacitance is recommended.

Key Specifications

Availability

EV2183-TL-00A is available at Aetrix Electronics and suitable for power management validation, DC/DC reference design verification, and embedded system bring-up requiring stable component supply and production-representative layout fidelity.

Supply support for EV2183-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, LED drivers, and motor control solutions.

The MP2183 product line delivers ultra-small-footprint, high-efficiency synchronous buck converters for space-constrained, battery-powered applications demanding low quiescent current (21µA) and fast transient response.

FAQ

What is the default output voltage setting on the EV2183-TL-00A?

The board is configured for a fixed 1.2V output using a 200kΩ top resistor (R1) and matching bottom resistor (R2). This matches the MP2183GTL's 1% FB accuracy spec and is verified across input range and load conditions per Rev. 1.1 test data.

Can the output voltage be adjusted, and how?

Yes - V_OUT is set by an external resistor divider per V_OUT = 0.6V × (1 + R1/R2). To change output, replace R2 while keeping R1 at 200kΩ; for example, 100kΩ R2 yields 1.8V. The board includes solder pads and footprint space for alternate resistors.

Does the board support enable sequencing and power-good monitoring?

Yes - the EN pin is routed to a test point and supports logic-level control (active-high) for precise power sequencing. The PGOOD signal is also accessible and asserts high when V_OUT is within ±10% of regulation, confirmed in startup/shutdown waveforms.

What protection features are validated on this evaluation board?

All MP2183GTL protections are operational: cycle-by-cycle current limiting, thermal shutdown, output overvoltage protection (OVP), short-circuit hiccup mode, and output discharge. Oscilloscope captures show clean entry into and recovery from short-circuit events within 400µs.

What external components are included, and are they production-grade?

The board uses production-grade parts: Murata GRM21BR61C226ME44L (22µF/16V X5R), WE 74437324010 (1µH, 9A saturation), and YAGEO RC0603FR-07200KL (200kΩ, 1%). All are industry-standard, RoHS-compliant, and match typical BOM selections for MP2183 designs.

Is thermal performance characterized, and what is the maximum ambient temperature for 3A operation?

Thermal imaging and temperature measurements confirm ≤55°C case rise at 3A/3.6V_IN/1.2V_OUT on a 2-layer FR-4 board with no forced airflow. Full 3A operation is validated up to +70°C ambient per Rev. 1.1 test conditions.