Monolithic Power Systems Inc. EV3415-G-00A

Overview

EV3415-G-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP3415 synchronous step-up converter IC, supporting 1.8–4.5V input and delivering regulated 5V/1.5A output with true output disconnect, 1MHz fixed-frequency operation, and integrated P-channel MOSFET for high-efficiency boost conversion in battery-powered portable electronics.

For engineers reviewing the EV3415-G-00A datasheet, EV3415-G-00A pinout, EV3415-G-00A application, or EV3415-G-00A equivalent, this board enables rapid validation of MP3415's efficiency, load regulation, short-circuit protection, soft-start behavior, and output voltage programmability across 2.8–4.5V input ranges in handheld and medical devices.

Technical Context

The EV3415-G-00A implements a current-mode, synchronous boost topology using the MP3415GG QFN-12 IC, featuring internal compensation, inrush current limiting, and 22μA quiescent current. It supports true output disconnect via integrated PMOS, eliminating reverse current flow during shutdown.

Test data confirms 97% peak efficiency at 3.3V_IN/5V_OUT/1.5A, <1μA shutdown current, and stable Bode plot phase margin (>60°) under full load-enabling robust transient response in space-constrained consumer and medical applications.

Key Specifications

Availability

EV3415-G-00A is available at Aetrix Electronics and suitable for portable media players, wireless peripherals, handheld computers, and personal medical devices requiring stable component supply and fast prototyping support for boost converter integration.

Supply support for EV3415-G-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP3415 product line targets ultra-compact, high-efficiency DC-DC boost conversion for single-cell Li-ion and multi-cell alkaline/NiMH battery systems in space- and power-sensitive portable electronics.

FAQ

What input voltage range is supported by the EV3415-G-00A board?

The board accepts 1.8V to 4.5V input, but full 1.5A output capability is verified only between 2.8V and 4.5V. Operation below 2.8V is functional but delivers reduced load current due to input voltage headroom limitations on the MP3415's internal gate drive and duty cycle constraints.

How is output voltage adjusted on this evaluation board?

Output voltage is set by resistor R2 in a feedback divider with R1 = 1MΩ and V_FB = 0.6V. The formula V_OUT = 0.6V × (1 + R1/R2) allows adjustment up to 5.5V; default R2 = 137kΩ yields 5.0V. No hardware modification beyond R2 replacement is required.

Does the board implement true output disconnect, and how is it verified?

Yes-the MP3415 integrates a P-channel MOSFET that physically isolates V_OUT from V_IN during shutdown. This is confirmed in test waveforms showing zero reverse current and stable 0V output when EN is low, even with load connected and input powered.

What protection features are demonstrated on the EV3415-G-00A?

The board demonstrates output short-circuit protection (SCP) with automatic recovery, overvoltage protection (OVP) at ~6.2V, thermal shutdown (OTP) above 150°C junction temperature, and controlled inrush limiting-verified via oscilloscope capture of IL, V_SW, and V_OUT during fault events.

Can the EV3415-G-00A be used with lithium coin cells or low-current alkaline sources?

Yes-the board draws only 22μA quiescent current and <1μA in shutdown, making it compatible with low-leakage primary cells. However, sustained 1.5A loads require higher-capacity sources (e.g., Li-ion or NiMH); coin cells are suitable only for light-load or intermittent testing.

Is external compensation required when using this evaluation board?

No-MP3415 uses internal compensation, and the EV3415-G-00A layout implements the recommended 1.5μH inductor and 10–22μF ceramic output capacitors to ensure stability without additional components. Bode plot data confirms >60° phase margin across load and line variations.