Analog Devices Inc./Maxim Integrated MAX20034HFEVKIT#

Overview

MAX20034HFEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the 2.2MHz switching operation of the MAX20034 dual high-voltage synchronous buck controller IC. It supports input voltage range 3.5V–42V, delivers two out-of-phase 5.0V/3.3V outputs with ±1.5% accuracy, and enables skip-mode (17µA IQ) or forced-PWM operation for automotive power-supply design validation.

For engineers reviewing the MAX20034HFEVKIT# datasheet, MAX20034HFEVKIT# pinout, MAX20034HFEVKIT# application, or MAX20034HFEVKIT# equivalent, this kit provides verified PCB layout, jumper-configurable frequency mode selection (skip/FPWM/external sync), test points for PGOOD monitoring, and component-level BOM traceability for rapid prototyping of 12V/24V automotive start-stop and cold-crank power systems.

Technical Context

The MAX20034HFEVKIT# implements the MAX20034 IC in a fixed 2.2MHz configuration via optimized passive selection: L1/L3 = 2.2µH shielded inductors, C10/C28 = 820pF C0G capacitors, and R9/R20 = 51.1kΩ resistors-enabling stable high-frequency operation with reduced EMI and minimized output filter size. It maintains full support for the IC's dual-channel phase-shifted control, cycle-by-cycle current limiting, and thermal shutdown protection.

This EV kit replicates the MAX20034's automotive-grade functionality: -40°C to +125°C operation, undervoltage/overvoltage lockout, power-OK monitoring on both outputs (PGOOD1/PGOOD2), and EXTVCC flexibility (connectable to VOUT1, VOUT2, or AGND). All jumpers-including JU1_EN1, JU2_EN2, and JU3_FSYNC-are pre-shunted per default settings for immediate 2.2MHz evaluation.

Key Specifications

Availability

MAX20034HFEVKIT# is available at Aetrix Electronics and suitable for automotive power-system validation, start-stop converter development, and high-frequency DC-DC reference design requiring stable component supply and documented layout implementation.

Supply support for MAX20034HFEVKIT# 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 automotive, industrial, and communications applications.

The MAX20034 product line delivers dual high-voltage buck controllers optimized for automotive power modules-designed to meet stringent OEM requirements for efficiency, transient response, EMI compliance, and wide-input-range operation during cold-crank and stop-start events.

FAQ

What is the primary purpose of the MAX20034HFEVKIT#?

The MAX20034HFEVKIT# is a dedicated evaluation kit for validating the 2.2MHz switching operation of the MAX20034 dual buck controller. It includes all necessary components, preconfigured jumpers, test points, and a proven PCB layout to accelerate design-in of high-frequency automotive power supplies without requiring custom board development.

How does the MAX20034HFEVKIT# differ from the MAX20034EVKIT#?

The MAX20034HFEVKIT# is specifically configured for 2.2MHz operation using 2.2µH inductors (L1/L3), 820pF timing capacitors (C10/C28), and 51.1kΩ resistors (R9/R20); the MAX20034EVKIT# uses 4.7µH inductors and 1500pF capacitors for 400kHz evaluation. Component values are not interchangeable between kits without revalidation.

Can the MAX20034HFEVKIT# be used to evaluate adjustable output voltages?

Yes-the MAX20034HFEVKIT# supports adjustable outputs via FB1/FB2 feedback pins. To modify VOUT1, remove R1 and install a 0Ω resistor on R29, then calculate R2/R3 using VFB1 = 1V; for VOUT2, remove R27 and install 0Ω on R31, then compute R25/R26 using VFB2 = 1V. Default outputs remain 5.0V and 3.3V.

Does the MAX20034HFEVKIT# include synchronization capability?

Yes-the MAX20034HFEVKIT# supports three SYNC modes via JU3_FSYNC jumper: skip mode (low), forced PWM (high), or external clock synchronization (driven by external signal). This allows engineers to assess EMI performance, light-load efficiency, and system-level clock alignment using the same hardware.

What protection features are accessible on the MAX20034HFEVKIT#?

The MAX20034HFEVKIT# exposes all MAX20034 protection functions: PGOOD1/PGOOD2 test points monitor output regulation status (pulled low if voltage drops below 92% of nominal), cycle-by-cycle current limit is implemented via CS1/CS2 sense resistors (R5/R23), and thermal shutdown behavior can be observed under sustained load conditions with ambient temperature control.