Analog Devices Inc./Maxim Integrated MAX17570BEVKIT#

Overview

MAX17570BEVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to validate the performance of the MAX17570B high-voltage synchronous step-down DC-DC converter, operating from 6.5V to 60V input and delivering up to 300mA at fixed 5V output in PWM mode across all loads. It supports adjustable input undervoltage lockout, open-drain RESET, thermal shutdown, overcurrent protection, and external clock synchronization.

For engineers reviewing the MAX17570BEVKIT# datasheet, MAX17570BEVKIT# pinout, MAX17570BEVKIT# application, or MAX17570BEVKIT# equivalent, this kit enables rapid validation of high-efficiency 400kHz switching operation, CISPR32 Class B EMI compliance, and robust power delivery in industrial and embedded power supply designs.

Technical Context

The MAX17570BEVKIT# hosts a complete, electrically isolated application circuit for the MAX17570B IC, featuring a 47μH power inductor (L102), 1μF/100V input capacitor (C107), and 10μF/25V X7R output capacitor (C110). It implements resistor-programmable EN/UVLO via R101/R102 and RT/SYNC frequency setting via R103 (9.76kΩ) for 400kHz default operation.

This kit supports external clock synchronization through the SYNC pad and optional C109 capacitor - a capability exclusive to the MAX17570B variant - and includes provisions for damping input oscillations with optional 10μF/100V electrolytic capacitor C103, critical for hot-plug and long-cable industrial deployments.

Key Specifications

Availability

MAX17570BEVKIT# is available at Aetrix Electronics and suitable for industrial power supply validation, embedded system bring-up, and high-voltage DC-DC converter qualification requiring stable component supply and repeatable test results.

Supply support for MAX17570BEVKIT# 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 precision instrumentation, industrial automation, communications, and automotive markets.

The MAX17570B evaluation kit belongs to Analog Devices' high-voltage DC-DC converter evaluation platform family, engineered to accelerate design-in of robust, EMI-compliant power solutions for harsh-input environments.

FAQ

What is the primary function of the MAX17570BEVKIT#?

The MAX17570BEVKIT# is an evaluation kit for the MAX17570B synchronous step-down DC-DC converter. It provides a proven, fully assembled PCB to validate key performance metrics-including efficiency, transient response, thermal behavior, and EMI-under real-world 6.5V–60V input conditions. Engineers use the MAX17570BEVKIT# to de-risk power stage design before committing to custom layout.

Does the MAX17570BEVKIT# support external clock synchronization?

Yes, the MAX17570BEVKIT# supports external clock synchronization via the SYNC pad and optional C109 capacitor. This feature allows the MAX17570B's switching frequency to be locked to an external clock source between 1.1× and 1.4× its programmed fSW (e.g., 440kHz–560kHz for 400kHz base), reducing beat frequencies and improving system-level EMI predictability. The MAX17570E variant lacks this capability.

What input voltage range does the MAX17570BEVKIT# support, and how is UVLO configured?

The MAX17570BEVKIT# operates from 6.5V to 60V input. Its undervoltage lockout threshold is resistor-programmable using R101 (3.32MΩ) and R102 (768kΩ), yielding a default startup voltage of 6.5V when jumper JU101 is open. Installing a shunt across pins 2–3 of JU101 disables the converter by grounding the EN/UVLO pin - a hardware-controlled enable/disable method validated on the board.

How does the MAX17570BEVKIT# ensure EMI compliance?

The MAX17570BEVKIT# achieves CISPR32 Class B conducted and radiated emissions compliance through a combination of optimized PCB layout (minimized high-di/dt loop area), integrated EMI filter components (listed as optional in BOM), and strategic placement of 1μF/100V input capacitors (C107) and 10μF/25V output capacitors (C110). Its layout has been pre-verified to meet limits without additional filtering in typical lab setups.

Can the MAX17570BEVKIT# be used to evaluate both MAX17570B and MAX17570E devices?

No - the MAX17570BEVKIT# is specifically configured for the MAX17570B device, including its PWM-only operation, SYNC capability, and associated component values (e.g., R103 = 9.76kΩ for 400kHz). While physically similar to the MAX17570EEVKIT#, it is not interchangeable: the MAX17570E uses different jumpers (JU201), lacks SYNC support, and operates in PFM mode at light loads - requiring separate evaluation hardware.