Analog Devices Inc./Maxim Integrated MAX17578EVKIT#

Overview

MAX17578EVKIT# from Maxim Integrated is an evaluation kit designed to validate the MAX17578 high-efficiency, high-voltage, synchronous inverting DC-DC converter. It delivers a regulated -5V output at up to 1A load current from a 16V–55V input supply, operates at 600kHz switching frequency, and features discontinuous conduction mode (DCM) for improved light-load efficiency in industrial power subsystems.

For engineers reviewing the MAX17578EVKIT# datasheet, MAX17578EVKIT# pinout, MAX17578EVKIT# application, or MAX17578EVKIT# equivalent, this page provides verified hardware specifications, EMI-compliant layout details, programmable EN/UVLO and soft-start, open-drain RESET signaling, and proven thermal/EMI performance data per CISPR32 Class B.

Technical Context

The MAX17578EVKIT# implements a fully assembled, tested, and optimized PCB layout for the MAX17578 IC - a Himalaya-series inverting buck-boost controller in 12-pin TDFN (3mm × 3mm). It supports external clock synchronization (RT/SYNC), adjustable soft-start via capacitor C215 (5600pF default), and resistor-programmable UVLO thresholds using R201/R202 (3.32MΩ/294kΩ).

It integrates overcurrent and overtemperature protection, active-low open-drain RESET with 1024-cycle delay, and optional EMI filter footprints (L202, C206, C210) enabling compliance with CISPR32 Class B conducted and radiated emissions limits. The board hosts two electrically isolated converter sections on one PCB, but only the MAX17578 section (U201) is active and configured for -5V/1A operation.

Key Specifications

Availability

MAX17578EVKIT# is available at Aetrix Electronics and suitable for industrial power validation, embedded negative rail generation, and high-voltage inverter design requiring stable component supply and pre-validated EMI performance.

Supply support for MAX17578EVKIT# 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 industrial, automotive, and communications applications.

The MAX17578EVKIT# belongs to Maxim's Himalaya evaluation kit family, engineered to accelerate adoption of high-voltage, high-efficiency inverting DC-DC converters in space-constrained, noise-sensitive systems.

FAQ

What is the primary function of the MAX17578EVKIT#?

The MAX17578EVKIT# is a fully assembled evaluation kit that demonstrates and validates the MAX17578 synchronous inverting DC-DC converter. It generates a regulated -5V output at up to 1A from a 16V–55V input, featuring DCM operation for light-load efficiency, programmable UVLO, soft-start, and open-drain RESET - all implemented on a CISPR32 Class B compliant PCB layout. The MAX17578EVKIT# enables rapid prototyping and performance verification without custom design.

Does the MAX17578EVKIT# support external clock synchronization?

Yes, the MAX17578EVKIT# supports external clock synchronization via the RT/SYNC pad (J201 pin 3). An external clock between 1.1× and 1.4× the internal 600kHz switching frequency (i.e., 660kHz–840kHz) can be applied. Performance data in TOC20 confirms stable operation at 840kHz with the MAX17578EVKIT#, preserving regulation accuracy and transient response while enabling multi-rail timing alignment.

What input voltage range is configured by default on the MAX17578EVKIT#?

The MAX17578EVKIT# is factory-configured for a 16V to 55V input voltage range, as confirmed by Table 3 and the schematic (R201 = 3.32MΩ, R202 = 294kΩ). This setting yields a 15.5V EN/UVLO rising threshold and supports full 1A output capability. Lower input ranges (e.g., 8V–55V or 4.5V–55V) are achievable by modifying R202 and R204 per Table 3, but require revalidation of output current and stability.

How is the RESET signal implemented on the MAX17578EVKIT#?

The MAX17578EVKIT# provides an active-low, open-drain RESET signal (RESET2 pad) pulled up to 5V via R206 (10kΩ). RESET asserts high 1024 switching cycles after VOUT2 exceeds 95% of -5V and deasserts low when VOUT2 drops below 92% of -5V - matching the MAX17578 IC's internal comparator behavior. This timing and threshold behavior is verified in TOC16 and TOC17 waveforms.

Is the MAX17578EVKIT# RoHS compliant and what certifications does it meet?

Yes, the MAX17578EVKIT# is RoHS compliant (denoted by # suffix per ordering table). It meets CISPR32 Class B limits for both conducted and radiated emissions when used with the optional EMI filter components (L202, C206, C210) installed per the Bill of Materials. Radiated emission plots (TOC26) and conducted plots (TOC25) confirm compliance at 1A load and 600kHz switching frequency.