Monolithic Power Systems Inc. EVX2003-Y-00D

Overview

EVX2003-Y-00D from Monolithic Power Systems is a 65W USB Type-C Power Delivery 3.0 evaluation board built around the MPX2003 all-in-one flyback controller and NV6134A GaN power stage. It delivers five programmable PD 3.0 output profiles (20V/3.25A, 15V/3A, 12V/3A, 9V/3A, 5V/3A) in a compact 40mm × 40mm × 25mm form factor, targeting high-density cellphone and laptop adapter reference designs.

For engineers reviewing the EVX2003-Y-00D datasheet, EVX2003-Y-00D pinout, EVX2003-Y-00D application, or EVX2003-Y-00D equivalent, this board provides validated performance data for DOE Level VI and CoC Tier 2 compliance, including measured efficiency curves across full input range (90–264VAC), no-load consumption <40mW, and transient response under dynamic load steps up to 3.25A.

Technical Context

The EVX2003-Y-00D implements a dual-stage architecture: a primary-side GaN-based flyback power stage using the NV6134A (650V, 260mΩ) and MPX2003 controller with integrated PSR/SSR hybrid regulation, plus a secondary-side CCG3PA USB PD 3.0 controller (Cypress CYPD3175) managing VBUS negotiation, CC logic, and discharge control. The design supports quasi-resonant switching in DCM and burst mode at light loads.

It features synchronous rectification driven by the MPX2003's SDRV signal, enabling safe CCM operation and achieving peak efficiency of 93.91% at 230VAC/20V/3.25A. Output ripple remains ≤71mV across all profiles and load conditions, and start-up time is under 203ms at full input range.

Key Specifications

Availability

EVX2003-Y-00D is available at Aetrix Electronics and suitable for USB-C PD adapter development, high-density offline power supply prototyping, and CoC Tier 2/DOE Level VI compliance validation requiring stable component supply and documented reference performance.

Supply support for EVX2003-Y-00D 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 power management ICs, with expertise in DC/DC converters, LED drivers, motor drivers, and AC/DC controllers.

The EVX2003-Y-00D belongs to MPS's USB PD evaluation platform series, designed to accelerate development of compact, high-efficiency, standards-compliant USB-C power adapters using their integrated flyback controllers and GaN solutions.

FAQ

What is the primary IC used on the EVX2003-Y-00D board?

The board centers on the MPX2003GY-Z - an all-in-one flyback controller integrating primary-side gate driving, secondary-side synchronous rectification control, safety-compliant feedback, and PSR/SSR hybrid regulation. It directly drives the NV6134A GaN FET and manages USB PD negotiation via companion ICs.

Does the EVX2003-Y-00D support USB PD 3.0 Programmable Power Supply (PPS)?

No. The board implements fixed-voltage USB PD 3.0 profiles only (5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A). It does not include PPS-capable firmware or hardware - the CCG3PA controller is configured for standard PDO negotiation without variable voltage stepping.

Can the EVX2003-Y-00D be modified for different output voltages?

Yes - output voltage is set by resistor dividers on the MPX2003 FB pin and PD controller firmware. The board's schematic and BOM document all configurable nodes; however, changing PDOs requires reprogramming the CYPD3175 and validating loop stability and thermal performance per new configuration.

What safety certifications has the EVX2003-Y-00D reference design achieved?

The board itself is an evaluation tool and not certified. However, its underlying design targets UL/EN 62368-1 (including reinforced isolation), IEC 61000-4-5 surge immunity, and meets conducted EMI limits per CISPR 32 Class B when implemented with recommended layout and filtering - as verified in MPS application reports.

Is the daughter board (PD controller section) removable or replaceable?

Yes - the daughter board is mechanically and electrically separate, connected via a 24-pin header. It uses the CYPD3175 QFN-24 and associated discrete components; users may substitute alternate PD controllers (e.g., STUSB4500, NXP PTN5150) with compatible pinout and firmware adaptation.

What is the measured hold-up time at full load?

Hold-up time is 73ms at 115VAC/5V/3A and 315ms at 230VAC/5V/3A, measured from AC input removal to VOUT dropping below 95% of nominal. This satisfies typical 10–20ms minimum hold-up requirements for USB-C devices during brief line interruptions.