Monolithic Power Systems Inc. EV5073-G-00B

Overview

EV5073-G-00B from Monolithic Power Systems is an evaluation board for the MP5073 2A programmable current load switch, featuring 50mΩ R_DS(ON), adjustable current limit (set via external 13kΩ resistor), and operation across 0.8–5.5V input with 3–5.5V V_CC. It enables rapid validation of load-switch behavior in portable power rail management.

For engineers reviewing the EV5073-G-00B datasheet, EV5073-G-00B pinout, EV5073-G-00B application, or EV5073-G-00B equivalent, this board provides verified test conditions-including 2A continuous output, <200ns short-circuit response, thermal protection, and soft-start control-for notebook, SSD, and handheld device power sequencing validation.

Technical Context

The EV5073-G-00B implements the MP5073GG QFN-8 (2mm×2mm) load switch IC with integrated sense-FET current limiting. It supports programmable current limit (2.5A max) via ILIM pin resistor, power-good indication, and output discharge functionality.

Test conditions are fixed per documentation: VIN = 3.6V, VCC = 3.6V, EN = 2.5V, RLIM = 13kΩ, TA = 25°C. Board-level performance includes UVLO disable, <1µA shutdown current, and soft-start timing controlled by external capacitor on SS pin.

Key Specifications

Availability

EV5073-G-00B is available at Aetrix Electronics and suitable for notebook power sequencing, SSD rail enablement, and handheld device peripheral switching requiring stable component supply and pre-validated reference design support.

Supply support for EV5073-G-00B 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 focus on efficiency, integration, and miniaturization for portable and computing applications.

The MP5073 product line delivers programmable, low-R_DS(ON) load switches optimized for dynamic current limiting and fast fault response in battery-powered consumer electronics.

FAQ

What is the purpose of the EV5073-G-00B evaluation board?

The EV5073-G-00B is a fully assembled, tested reference platform for evaluating the MP5073GG load switch IC. It enables engineers to validate current-limiting accuracy, soft-start timing, power-good signaling, and thermal behavior under real-world load conditions without custom PCB development.

How is current limit configured on this board?

Current limit is set by resistor R1 (13kΩ) connected between the ILIM pin and GND, establishing a 2A nominal limit per the MP5073's transfer function. The board includes pads for alternative resistor values to adjust limit within the 0.5–2.5A range specified in the datasheet.

Does the board support soft-start control?

Yes - soft-start timing is controlled by capacitor C4 (0.1µF) connected to the SS pin. The board provides solder pads to substitute alternate capacitance values, enabling adjustment of turn-on slew rate per application requirements such as inrush current suppression.

What are the key test conditions documented for this EV board?

All published waveforms and curves use VIN = 3.6V, VCC = 3.6V, EN = 2.5V, RLIM = 13kΩ, and TA = 25°C unless otherwise noted. These conditions reflect typical tablet/notebook rail configurations and ensure repeatable benchmarking of current limit, R_DS(ON), and protection timing.

Can the EV5073-G-00B be used to evaluate thermal performance?

Yes - the board integrates the MP5073GG in its native 2mm×2mm QFN-8 package with exposed thermal pad, and includes thermal protection validation in test results. Measured R_DS(ON) vs. temperature and thermal shutdown response are provided in the Rev. 1.0 datasheet figures.

Is output discharge functionality enabled by default?

Yes - the board connects the DIS pin to GND through a 0Ω resistor (R3), enabling automatic output discharge when the device is disabled. This prevents floating voltages on downstream circuits and supports clean power-down sequencing in portable systems.