Analog Devices Inc./Maxim Integrated MAX17570C12EVKIT#

Overview

MAX17570C12EVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to validate the performance of the MAX17570C high-voltage synchronous step-down DC-DC converter. It supports 15V–60V input, delivers up to 300mA at adjustable 12V output, operates in PWM mode across all loads, and features 400kHz fixed switching frequency with external clock synchronization capability.

For engineers reviewing the MAX17570C12EVKIT# datasheet, MAX17570C12EVKIT# pinout, MAX17570C12EVKIT# application, or MAX17570C12EVKIT# equivalent, this kit enables rapid validation of high-efficiency 12V power delivery in industrial and embedded systems requiring CISPR32 Class B EMI compliance, programmable UVLO, and thermal/overcurrent protection.

Technical Context

The MAX17570C12EVKIT# implements a complete, electrically isolated reference design for the MAX17570C IC, including input filtering (1µF/100V X7R + optional 10µF/100V electrolytic), output regulation (10µF/25V X7R), and precision EN/UVLO programming via resistor dividers (R101/R102) set to 15V threshold. It integrates a 100µH power inductor (Wurth 74404054101) and supports hot-plug operation with damped input transients.

It provides dedicated SYNC functionality via C109 capacitor and RT/SYNC pin (R103 = 9.76kΩ), enabling synchronization to an external clock between 1.1× and 1.4× fSW (i.e., 440–560kHz). The board includes open-drain RESET output, thermal shutdown, and overcurrent protection - all directly inherited from the MAX17570C IC's internal circuitry.

Key Specifications

Availability

MAX17570C12EVKIT# is available at Aetrix Electronics and suitable for industrial power validation, embedded DC-DC design verification, and CISPR32-compliant EMI testing requiring stable component supply and traceable evaluation hardware.

Supply support for MAX17570C12EVKIT# 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.

The MAX17570C12EVKIT# belongs to Analog Devices' high-voltage DC-DC evaluation platform family, engineered to accelerate development of robust, EMI-compliant power supplies for harsh-input industrial environments.

FAQ

What is the primary function of the MAX17570C12EVKIT#?

The MAX17570C12EVKIT# is a ready-to-use evaluation platform for the MAX17570C synchronous step-down converter. It enables engineers to verify 12V power delivery performance under real-world conditions - including 15V–60V input, 300mA load, 400kHz switching, and CISPR32 Class B EMI compliance - without custom PCB design. The MAX17570C12EVKIT# includes all necessary passives, layout-optimized power stages, and test points for immediate bench validation.

Does the MAX17570C12EVKIT# support external clock synchronization?

Yes, the MAX17570C12EVKIT# supports external clock synchronization via its SYNC pad and optional C109 capacitor. When enabled, it accepts an external clock between 440kHz and 560kHz (1.1× to 1.4× the 400kHz base frequency), allowing precise timing alignment with system clocks. This feature is exclusive to the MAX17570C section; the MAX17570F section on the same board does not support synchronization. The MAX17570C12EVKIT# implements this using R103 (9.76kΩ) and the designated SYNC interface.

How is input undervoltage lockout (UVLO) configured on the MAX17570C12EVKIT#?

UVLO on the MAX17570C12EVKIT# is resistor-programmable via jumper JU101 and the R101/R102 divider network. With JU101 open (default), the MAX17570C enables at 15V input. Installing a shunt across pins 2–3 disables the converter. Driving the EN/UVLO pin externally requires ≥1kΩ series resistance to suppress ringing. This configuration mirrors the MAX17570C IC's internal UVLO architecture and is validated per the MAX17570 data sheet's EN/UVLO section.

What EMI mitigation features are built into the MAX17570C12EVKIT#?

The MAX17570C12EVKIT# incorporates a full CISPR32 Class B EMI solution: an input EMI filter (with specified component part numbers), optimized high-frequency layout (minimized loop areas, ground plane integrity), and strategic placement of 1µF/100V X7R and optional 10µF/100V electrolytic capacitors to dampen hot-plug oscillations. Radiated and conducted emissions are both verified below Class B limits - a key differentiator for industrial power validation where regulatory pre-compliance is critical. The MAX17570C12EVKIT# delivers this out-of-the-box.

Can the MAX17570C12EVKIT# be used to evaluate both MAX17570C and MAX17570F?

Yes - the MAX17570C12EVKIT# board hosts two independent, electrically isolated circuits: one for the MAX17570C (PWM-only operation) and one for the MAX17570F (PFM at light loads). Each has dedicated input/output pads, jumpers (JU101/JU201), and component sets (e.g., R103 vs. R203). Users can evaluate either device separately using the same physical board, making the MAX17570C12EVKIT# a dual-purpose tool for comparing control-mode trade-offs in high-voltage step-down applications.