Analog Devices Inc./Maxim Integrated MAX17783CEVKITA#

Overview

The MAX17783CEVKITA# from Maxim Integrated is an evaluation kit designed to validate the MAX17783C high-voltage synchronous step-down DC-DC converter in 3.3V/2.5A applications, operating from 6V–60V input with 500kHz fixed switching frequency and featuring adjustable UVLO, soft-start, RESET output, and external clock synchronization.

For engineers reviewing the MAX17783CEVKITA# datasheet, MAX17783CEVKITA# pinout, MAX17783CEVKITA# application, or MAX17783CEVKITA# equivalent, this EV kit provides a fully assembled, thermally optimized reference design for Himalaya-series buck converters-enabling rapid validation of efficiency, load transient response, line regulation, and protection behavior under real-world input voltage and load conditions.

Technical Context

The MAX17783CEVKITA# implements the MAX17783C IC in a production-ready PCB layout optimized for thermal performance and EMI control, using a 5.6μH power inductor (XAL5050-562ME), 47μF/10V output ceramic capacitor (GRM32ER71A476KE15), and 33μF/80V input electrolytic capacitor (EEE-FK1K330P) for hot-plug robustness.

It supports full functional verification including EN/UVLO threshold programming via resistor divider (R1 = 3.32MΩ, R2 = 909kΩ), soft-start timing adjustment via C11 (5600pF), RESET monitoring (active-low open-drain, 1024-cycle delay), and RT/SYNC pin synchronization to external clocks up to 700kHz.

Key Specifications

Availability

MAX17783CEVKITA# is available at Aetrix Electronics and suitable for industrial power supply validation, railway electronics testing, and high-voltage embedded system prototyping requiring stable component supply and proven reference designs.

Supply support for MAX17783CEVKITA# 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

Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX17783C belongs to the Himalaya family of high-input-voltage DC-DC converters, engineered specifically for ruggedized power conversion in harsh environments where wide VIN range, high efficiency, and reliability are critical.

FAQ

What is the primary function of the MAX17783CEVKITA#?

The MAX17783CEVKITA# is a fully assembled evaluation kit that enables hardware validation of the MAX17783C 6V–60V input synchronous buck converter delivering 3.3V/2.5A. It provides pre-characterized performance data-including efficiency curves, load transients, and Bode plots-and serves as a thermal-optimized PCB layout reference for production designs using the MAX17783C.

Does the MAX17783CEVKITA# support external clock synchronization?

Yes, the MAX17783CEVKITA# exposes the RT/SYNC pin on a dedicated test pad, allowing synchronization of the MAX17783C's internal oscillator to an external clock signal up to 700kHz. This capability is verified in the performance report (Figure toc10) and supports noise-sensitive systems requiring deterministic switching timing.

How is undervoltage lockout configured on the MAX17783CEVKITA#?

The MAX17783CEVKITA# implements programmable UVLO via jumper JU1 and a resistor divider (R1 = 3.32MΩ, R2 = 909kΩ), setting the enable threshold to 5.6V when JU1 is open. Installing a shunt across JU1 pins 1–2 disables the converter. The EN/UVLO test pad also supports external logic-level enable control independent of the resistor network.

What protection features are demonstrated by the MAX17783CEVKITA#?

The MAX17783CEVKITA# validates overcurrent protection (hiccup-mode shutdown during overload), overtemperature shutdown (thermal foldback above junction limit), and precise RESET assertion/deassertion (1024-cycle delay after VOUT reaches 95% or falls below 92% of 3.3V). These behaviors are captured in Figures toc07–toc11 of the performance report.

Is the MAX17783CEVKITA# compatible with prebiased output conditions?

Yes, the MAX17783CEVKITA# demonstrates proper soft-start operation with prebias: Figure toc09 shows controlled startup into a 1.65V precharged output, confirming the MAX17783C's ability to avoid reverse current and maintain regulation without latch-up-critical for hot-swap and redundant power systems.