Monolithic Power Systems Inc. EV5416-R-00B

Overview

EV5416-R-00B from Monolithic Power Systems is a 5V evaluation board for the MP5416 power management IC, integrating four high-efficiency buck converters (4.5A/2.5A/4A/2A), five LDOs (including RTC-dedicated and low-noise variants), I²C programmability, OTP configuration, and full protection (UVLO/OCP/thermal shutdown). It supports flexible power sequencing and is used to validate multi-rail power delivery in consumer electronics.

For engineers reviewing the EV5416-R-00B datasheet, EV5416-R-00B pinout, EV5416-R-00B application, or EV5416-R-00B equivalent, this board enables rapid validation of MP5416-based power architectures-including voltage sequencing, transient response under load steps, I²C register access, and OTP programming flow-prior to custom PCB design.

Technical Context

The EV5416-R-00B implements a complete reference design for the MP5416 PMIC, featuring four COT-controlled buck converters operating at 1.5MHz default switching frequency in CCM mode, with hiccup-mode OCP and adjustable PFM/PWM operation. Input range is 2.8V–5.5V, supporting direct 5V input via VIN terminals.

It integrates five LDOs: one RTC-dedicated LDO and four low-noise LDOs supplied from two independent inputs, delivering ≤100mV dropout at 300mA. Power-on/off sequence, output voltages (e.g., Buck1=1.2V, Buck3=1.8V), and timing slots are preconfigured via OTP version 0100 or dynamically controlled over I²C slave address 0x69.

Key Specifications

Availability

EV5416-R-00B is available at Aetrix Electronics and suitable for cable modem, IP camera, and SSD power architecture validation requiring stable component supply, repeatable lab characterization, and early-stage firmware co-development.

Supply support for EV5416-R-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 core expertise in DC/DC conversion, LED drivers, and integrated power solutions.

The MP5416 product line delivers highly integrated, space-efficient power management for multi-rail consumer electronics, emphasizing minimal external components, programmable sequencing, and robust protection for cost-sensitive, high-volume applications.

FAQ

What input voltage range does the EV5416-R-00B support?

The board accepts 3.5V to 5V DC input, with nominal operation at 5V. Internal VIN1–VIN4 terminals are shorted, allowing connection to any single input terminal. This range aligns with the MP5416's specified 2.8V–5.5V operating input window and ensures compatibility with common lab power supplies and USB-derived sources.

How is power sequencing controlled on this evaluation board?

Sequencing is implemented via the onboard MP5416's OTP memory (version 0100) and can be modified in real time using I²C commands. Default timing slots (e.g., Buck1 at 2ms, LDO3 at 6ms) and on/off states are preprogrammed; no external logic or FPGA is required to execute the full power-up/down sequence.

Can output voltages be adjusted without reprogramming OTP?

Yes - all nine output rails (Buck1–Buck4, LDO1–LDO5) are adjustable in real time via the I²C interface using the MP5416's register map. The board includes pull-up/pull-down resistors and jumpers compatible with standard I²C host adapters, enabling dynamic voltage tuning during functional testing.

What protection features are verified on the EV5416-R-00B?

UVLO, hiccup-mode overcurrent protection (OCP), and thermal shutdown are fully implemented and tested per MPS documentation. Test waveforms in the reference guide confirm reliable fault recovery under overload conditions at VIN=5V and TA=25°C using the default BOM components.

Does the board include hardware for reset signaling?

Yes - it provides a dedicated Power-On Reset Output (RSTO) signal with 10ms delay, synchronized to the internal power-good status of the MP5416. This open-drain output is routed to a test point and can drive external logic or microcontroller reset inputs directly.

Are external components required to operate the evaluation board?

No - the board ships with a complete, validated BOM including Murata capacitors (22μF/2.2μF), Würth inductors (1μH/1.5μH), and precision resistors. Only a 5V DC source and optional I²C host (e.g., Bus Pirate or MCU dev kit) are needed to begin evaluation.