Analog Devices Inc./Maxim Integrated MAX17573EVKITB#

Overview

MAX17573EVKITB# from Analog Devices is an evaluation kit designed to validate the MAX17573 synchronous step-down DC-DC converter in 5V output applications, delivering up to 3.5A load current from a 6.5V–60V input range at 500kHz switching frequency, with programmable enable/UVLO, soft-start, open-drain RESET, and external clock synchronization - used for industrial power supply validation and high-voltage embedded system design.

For engineers reviewing the MAX17573EVKITB# datasheet, MAX17573EVKITB# pinout, MAX17573EVKITB# application, or MAX17573EVKITB# equivalent, this kit supports CISPR 32 Class B EMI compliance testing, dual-mode (PWM/PFM/DCM) operation verification, and thermal/EMI-optimized layout evaluation under real-world 5V/3.5A load conditions.

Technical Context

The MAX17573EVKITB# implements a fully assembled, tested 5V/3.5A buck converter circuit based on the MAX17573 IC, featuring resistor-programmable UVLO (rising threshold = 6.2V), adjustable soft-start via external capacitor (e.g., 5600pF for 1ms), and jumper-selectable PWM/PFM/DCM modes. It includes isolated 5V output stage with dedicated input (VIN2), output (VOUT2), PGND, and SGND connections.

EMI performance is validated per CISPR 32 Class B through optimized PCB layout, optional conducted EMI filter footprints (L102/L202 cut traces), and integrated damping for long-cable hot-plug transients using 68µF/100V electrolytic capacitors (CIN206). RESET signal asserts high when VOUT2 ≥95% of nominal (5V), low when ≤92%.

Key Specifications

Availability

MAX17573EVKITB# is available at Aetrix Electronics and suitable for industrial power supply validation, high-voltage embedded system prototyping, and CISPR 32 EMI compliance testing requiring stable component supply and pre-validated hardware reference designs.

Supply support for MAX17573EVKITB# 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The MAX17573EVKITB# belongs to Analog Devices' Himalaya power portfolio, engineered for rugged, high-efficiency DC-DC conversion in wide-input industrial and transportation systems where reliability, thermal robustness, and EMI control are critical.

FAQ

What is the primary function of the MAX17573EVKITB#?

The MAX17573EVKITB# is a fully assembled evaluation kit that demonstrates and validates the 5V/3.5A output capability of the MAX17573 synchronous step-down DC-DC converter across a 6.5V–60V input range. It enables engineers to verify startup behavior, regulation accuracy, transient response, thermal performance, and EMI characteristics without designing custom hardware - making MAX17573EVKITB# ideal for rapid prototyping of high-voltage industrial power rails.

How does the MAX17573EVKITB# differ from the MAX17573EVKITA#?

The MAX17573EVKITB# implements the 5V output configuration of the MAX17573, while MAX17573EVKITA# implements the 3.3V version. Their input UVLO rising thresholds differ (6.2V vs. 4.3V), input voltage ranges differ (6.5V–60V vs. 4.5V–60V), and they use different inductors (L201 = 6.8µH vs. L101 = 4.7µH) and resistor dividers (R201/R202 vs. R101/R102). Both share identical features including soft-start, RESET, mode selection, and EMI-optimized layout - but operate as electrically isolated circuits on the same PCB.

Can the MAX17573EVKITB# be synchronized to an external clock?

Yes, the MAX17573EVKITB# supports external clock synchronization via the MODE/SYNC PCB pads. When an external clock signal is applied and jumpers JU102/JU202 are left open, the MAX17573 operates exclusively in PWM mode at the synchronized frequency. This capability allows precise timing alignment in multi-rail systems and reduces beat-frequency noise - a key feature confirmed in the MAX17573EVKITB# schematic and quick-start guide.

What protection features are implemented on the MAX17573EVKITB#?

The MAX17573EVKITB# incorporates overcurrent protection (OCP) and overtemperature protection (OTP) inherited from the MAX17573 IC, plus hardware-level safeguards including undervoltage lockout (UVLO) with resistor-programmable thresholds, soft-start limiting inrush current, and open-drain RESET signaling for system monitoring. The board also includes optional 68µF/100V electrolytic capacitors (CIN206) to dampen hot-plug transients from long input cables - all verified in the MAX17573EVKITB# test procedure and detailed description.

Does the MAX17573EVKITB# require additional components to operate?

No, the MAX17573EVKITB# is fully assembled and tested out-of-box. It requires only a 60V/3.5A DC input power supply, a 5V/3.5A load, and two DMMs for basic validation. All critical components - including the MAX17573ATG+ IC, 6.8µH inductor (L201), input/output capacitors, UVLO resistors (R201/R202), and mode-selection jumpers (JU202) - are pre-installed. Optional EMI filter parts and secondary capacitors are listed in the BoM but not required for baseline operation of MAX17573EVKITB#.