Analog Devices Inc./Maxim Integrated MAX17553AEVKIT#

Overview

MAX17553AEVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to demonstrate the performance of the MAX17553A 4V–60V, 50mA synchronous step-down DC-DC converter in an 8-pin TDFN (2mm × 2mm) package. It delivers a regulated 3.3V/50mA output, operates from 4.5V–60V input, switches at 150kHz, and achieves 91% peak efficiency - ideal for validating power-constrained industrial sensors and IoT edge nodes.

For engineers reviewing the MAX17553AEVKIT# datasheet, MAX17553AEVKIT# setup, MAX17553AEVKIT# configuration, or MAX17553AEVKIT# compliance with CISPR32 Class B, this EV kit provides verified PCB layout, built-in EN/UV+HYST programming, open-drain RESET monitoring, hiccup-mode protection, and EMI filter footprints for rapid prototyping and pre-compliance testing.

Technical Context

The MAX17553AEVKIT# implements a fixed-frequency (150kHz), internally compensated buck topology using the MAX17553A IC. Input undervoltage enable (EN/UV) and hysteresis (HYST) thresholds are resistor-programmable via on-board R1–R3 network, enabling turn-on at 8V_MAX and turn-off at 4.4V_MAX.

It integrates a proven thermal layout with ceramic and electrolytic input filtering (C1, C4, C5), a 150µH power inductor (L1), and supports hot-plug mitigation via optional C5 (22µF/100V electrolytic). RESET asserts low when VOUT drops below 92% of 3.3V or EN/UV falls below threshold, with 30µs delay on power-up.

Key Specifications

Availability

MAX17553AEVKIT# is available at Aetrix Electronics and suitable for industrial sensor nodes, battery-powered IoT gateways, and ruggedized embedded controllers requiring stable component supply, pre-validated power architecture, and fast-turn prototyping support.

Supply support for MAX17553AEVKIT# 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 healthcare markets.

The MAX17553A product line targets ultra-small, high-efficiency DC-DC conversion for space-constrained, wide-input-voltage applications - especially where reliability under voltage transients and EMI compliance are critical.

FAQ

What is the primary function of the MAX17553AEVKIT#?

The MAX17553AEVKIT# is a fully assembled evaluation kit that demonstrates the operation and performance of the MAX17553A synchronous step-down DC-DC converter. It provides a validated platform to test 3.3V/50mA regulation from 4.5V–60V input, verify EN/UV+HYST programming, assess RESET timing, and evaluate thermal and EMI behavior - all using the exact MAX17553AATA+ IC mounted on the board.

Does the MAX17553AEVKIT# support adjustable output voltage?

No - the MAX17553AEVKIT# is factory-configured for a fixed 3.3V output using internal feedback resistors. The underlying MAX17553A IC does not support external V_OUT adjustment; its output voltage is set by internal trimming. To evaluate other output voltages, users must refer to the MAX17553A datasheet and modify the feedback network per application requirements - but such changes are not implemented on the standard MAX17553AEVKIT# board.

How is input undervoltage lockout configured on the MAX17553AEVKIT#?

The MAX17553AEVKIT# uses a three-resistor network (R1 = 3.32MΩ, R2 = 1.13MΩ, R3 = 1.3MΩ) to program EN/UV and HYST pins, setting turn-on at ≤8V and turn-off at ≤4.4V. This configuration is documented in the EV kit schematic and Bill of Materials. Resistor values can be changed per the MAX17553A datasheet equations to adjust thresholds - no hardware modification beyond resistor replacement is required.

What role does capacitor C5 play on the MAX17553AEVKIT# PCB?

Capacitor C5 (22µF/100V electrolytic) is an optional component on the MAX17553AEVKIT# PCB that dampens input voltage overshoot during hot-plug events with long input cables. Its ESR interacts with cable inductance and input ceramic capacitance (C1, C4) to suppress LC ringing - directly addressing a real-world stress condition not mitigated by ceramics alone. C5 is installed by default in production units.

Can the MAX17553AEVKIT# be used to validate CISPR32 Class B compliance?

Yes - the MAX17553AEVKIT# layout and BOM include designated footprints and routing for a conducted EMI filter (L2 cut-trace + C2/C8 positions), and its measured emissions meet CISPR32 Class B limits when those components are installed. The board's optimized switching node layout and ground plane design also support radiated emission control. Full compliance validation still requires certified lab testing, but the MAX17553AEVKIT# provides a pre-optimized starting point.