Analog Devices Inc./Maxim Integrated MAX17555CEVKIT#

Overview

The MAX17555CEVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to demonstrate the performance of the MAX17555C synchronous step-down DC-DC converter - a 4V to 60V input, 50mA, 70kHz switching regulator in an 8-pin TDFN (2mm × 2mm) package. It delivers a regulated 12V/30mA output, supports programmable EN/UV and HYST thresholds, features open-drain RESET monitoring, and achieves 89.1% peak efficiency.

For engineers reviewing the MAX17555CEVKIT# datasheet, MAX17555CEVKIT# pinout, MAX17555CEVKIT# application, or MAX17555CEVKIT# equivalent, this kit enables rapid validation of input undervoltage lockout behavior, hiccup-mode overload protection, thermal shutdown response, CISPR32 Class B conducted EMI compliance with optional filter footprints, and configurable output voltage scaling via FB divider.

Technical Context

The MAX17555CEVKIT# implements a fixed-output 12V configuration using the MAX17555C IC, operating across 14V–60V input with turn-on at ≤20V and turn-off at ≤14V via EN/UV and HYST pins. It integrates L1 (270µH), C3 (10µF), C4 (1µF), and precision resistors (R1 = 3.32MΩ, R2 = 287kΩ, R3 = 953kΩ) to set UVLO hysteresis and enable verified startup sequencing.

This EV kit provides direct access to VIN, VOUT, GND, EN/UV, HYST, RESET, and VEXT test points, supporting bench evaluation of soft-start (0.8ms typ), open-drain RESET timing (30µs assertion delay, 92% dropout threshold), and hot-plug transient suppression using optional C5 (22µF electrolytic). Its PCB layout includes designated footprints for external EMI filter components per CISPR32 Class B requirements.

Key Specifications

Availability

MAX17555CEVKIT# is available at Aetrix Electronics and suitable for power supply validation, DC-DC converter qualification, EMI pre-compliance testing, and industrial control system prototyping requiring stable component supply and traceable evaluation hardware.

Supply support for MAX17555CEVKIT# 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The MAX17555CEVKIT# belongs to Analog Devices' high-voltage DC-DC evaluation platform family, engineered to accelerate development of compact, efficient, and EMI-compliant power supplies for harsh-input environments such as factory automation and distributed power architectures.

FAQ

What is the primary function of the MAX17555CEVKIT#?

The MAX17555CEVKIT# is a ready-to-use evaluation platform that demonstrates the operation and key features of the MAX17555C synchronous step-down DC-DC converter. It enables engineers to validate input UVLO behavior, RESET timing, hiccup-mode protection, thermal shutdown, and CISPR32 Class B EMI performance without custom PCB design. The MAX17555CEVKIT# comes fully assembled with calibrated components and documented test procedures.

Does the MAX17555CEVKIT# support adjustable output voltage?

Yes - while configured for 12V output by default, the MAX17555CEVKIT# supports output voltage adjustment from 0.8V to 0.9×VIN using the FB pin and an external resistor divider. The schematic and layout provide access to the FB node, and the MAX17555C data sheet specifies RU = RB × (VOUT/0.8 − 1) for setting new output levels. The MAX17555CEVKIT# documentation includes Figure 3 showing the exact implementation method.

How does the MAX17555CEVKIT# implement input undervoltage lockout with hysteresis?

The MAX17555CEVKIT# uses a three-resistor network (R1 = 3.32MΩ, R2 = 287kΩ, R3 = 953kΩ) connected to the EN/UV and HYST pins to set turn-on at ≤20V and turn-off at ≤14V. This network configures the MAX17555C's internal comparators to avoid oscillation during input ramp-up/down. The MAX17555CEVKIT# user guide provides the full calculation method and references the MAX17555C data sheet for threshold derivation.

Can the MAX17555CEVKIT# be used for conducted EMI testing?

Yes - the MAX17555CEVKIT# includes designated footprints (L2 cut trace, C2/C8 pads) for adding external conducted EMI filter components per its BOM and layout guidelines. When populated, these filters reduce high-frequency noise injection into the input source and help meet CISPR32 Class B limits. The MAX17555CEVKIT# documentation explicitly states that "use of these filter components results in lower conducted EMI below CISPR32 Class B limits."

What safety precautions apply when operating the MAX17555CEVKIT#?

Users must discharge all high-voltage capacitors for five minutes after disconnecting input power before handling the MAX17555CEVKIT#. Power supplies must remain disabled until all connections are complete, and no bare-hand or conductive-tool contact with live circuitry is permitted. The MAX17555CEVKIT# operates with input voltages up to 60V - sufficient to pose shock hazard - and includes warnings against touching exposed pads or traces during operation.