Analog Devices Inc./Maxim Integrated MAX17509EVKIT#

Overview

MAX17509EVKIT# from Maxim Integrated is an evaluation kit for the MAX17509 dual 3A synchronous step-down DC-DC converter IC, enabling rapid validation of two independent 3A outputs or a single 6A dual-phase output across 4.5V–16V input. It supports resistor-programmable output voltages (0.904V–3.782V and 4.756V–5.048V), ±2% system accuracy, adjustable slew rate, and EN55022 Class-B EMI compliance - used in FPGA core power and industrial point-of-load designs.

For engineers reviewing the MAX17509EVKIT# datasheet, MAX17509EVKIT# setup guide, MAX17509EVKIT# test procedure, or MAX17509EVKIT# compatibility with MAX17509 IC, this kit provides verified reference schematics, layout files, thermal performance data, and preconfigured jumpers for mode selection (single/dual-phase), soft-start timing, OCP behavior, and LX slew rate control - accelerating power architecture validation.

Technical Context

The MAX17509EVKIT# implements the MAX17509 IC in a fully assembled 32-pin 5mm × 5mm TQFN layout with all critical external components: dual 3.3µH shielded inductors (L1/L2), ceramic input/output capacitors (CIN1/CIN2/COUT1/COUT2), BST decoupling caps (CBST1/CBST2), and configuration resistors for COARSE/FINE/SS/MODE pins. It supports valley-current-mode PWM control, self-configured internal compensation, and programmable switching frequency (500kHz–2MHz).

Key design features include synchronized operation via SYNC input, 0°/180° phase shift selection, hiccup/latch fault response, prebias startup capability, and thermal shutdown at +160°C. The board integrates dedicated test points for VIN, VOUT1/VOUT2, LX1/LX2, PGOOD1/PGOOD2, and EN1/EN2 - enabling real-time waveform capture and fault injection testing under load transients and short-circuit conditions.

Key Specifications

Availability

MAX17509EVKIT# is available at Aetrix Electronics and suitable for FPGA core power validation, industrial control equipment prototyping, and multi-rail point-of-load development requiring stable component supply, traceable reference design assets, and documented thermal/mechanical integration support.

Supply support for MAX17509EVKIT# 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for industrial, automotive, and communications applications.

The MAX17509EVKIT# belongs to Maxim's high-efficiency DC-DC evaluation platform family, designed to accelerate adoption of resistor-programmable, EMI-optimized buck converters in noise-sensitive systems such as FPGA, DSP, and RF subsystems.

FAQ

What is the primary function of the MAX17509EVKIT#?

The MAX17509EVKIT# is a fully assembled evaluation kit for the MAX17509 dual 3A synchronous step-down DC-DC converter. It enables hardware validation of both independent-output (3A/3A) and dual-phase (6A) configurations, including resistor-programmed voltage settings, soft-start timing, slew-rate-controlled switching, and fault response modes - without requiring custom PCB design.

Does the MAX17509EVKIT# support dual-phase operation for a single 6A output?

Yes, the MAX17509EVKIT# supports dual-phase operation for a single 6A output via MODE pin configuration. When set to dual-phase mode, the kit routes LX1 and LX2 to a common output capacitor bank, enables 180° phase shift, and configures shared feedback sensing - delivering up to 6A continuous current with reduced input/output ripple and improved thermal distribution.

How is output voltage programmed on the MAX17509EVKIT#?

Output voltage on the MAX17509EVKIT# is programmed using external 1% resistors connected to COARSE1/FINE1 and COARSE2/FINE2 pins - each pair sets one output in 20mV increments across two ranges (0.904V–3.782V and 4.756V–5.048V). Default jumpers implement typical values (e.g., 1.2V and 3.3V); resistor tables in the MAX17509 datasheet guide precise selection.

Can the MAX17509EVKIT# be synchronized to an external clock source?

Yes, the MAX17509EVKIT# includes a dedicated SYNC input (Pin 13) that accepts external clock signals from 450kHz to 2.2MHz. Synchronization ensures deterministic phase alignment across multiple MAX17509-based supplies, reduces beat frequencies, and simplifies EMI filtering - verified using oscilloscope measurements of LX1/LX2 edges relative to CLKIN.

What thermal management features are implemented on the MAX17509EVKIT#?

The MAX17509EVKIT# implements thermal management via direct connection of the IC's exposed paddle (EP) to a large SGND copper plane, 2-layer thermal vias under the TQFN package, and optimized copper pour around LX nodes. Thermal shutdown at +160°C is monitored and reported through PGOOD logic states, and temperature rise under 6A load remains within +35°C above ambient per Maxim's θJA = 29°C/W specification.