Analog Devices Inc./Maxim Integrated MAX38904AEVK#TDFN

Overview

MAX38904AEVK#TDFN from Maxim Integrated is a fully assembled and tested evaluation kit designed to characterize the MAX38904A low-noise linear regulator in 14-pin TDFN (3mm × 3mm) package. It supports 1.7V–5.5V input, jumper-selectable output voltages (1.2V to 5.0V), and delivers up to 2A output current with 5.1µV_RMS noise (10Hz–100kHz) - ideal for powering noise-sensitive analog/RF circuitry in portable instrumentation and precision ADC/DAC systems.

For engineers reviewing the MAX38904AEVK#TDFN datasheet, MAX38904AEVK#TDFN pinout, MAX38904AEVK#TDFN application, or MAX38904AEVK#TDFN equivalent, this EV kit provides validated hardware for rapid LDO performance validation including dropout behavior, load regulation, PSRR, and transient response under real-world PCB layout constraints.

Technical Context

The MAX38904AEVK#TDFN implements the MAX38904A-ATD+ IC on a proven 2-layer, 1-oz copper PCB with optimized thermal and decoupling layout. Input and output terminal posts support direct connection to DC power supplies and electronic loads, while onboard jumpers (JU101, SELA, SELB) enable hardware-based EN control and precise 9-level voltage selection without firmware or external controllers.

It integrates three 0603 ceramic capacitors (C101, C104 DNI) and two 1206 22µF X7R ceramics (C102, C103), matching the MAX38904A's recommended external component values for stability and low-noise operation. The board includes banana jack connectors (IN, OUT, GND) and test points (SU1–SU3) for oscilloscope probing of critical nodes.

Key Specifications

Availability

MAX38904AEVK#TDFN is available at Aetrix Electronics and suitable for LDO validation, power integrity testing, and analog subsystem prototyping requiring stable component supply, pre-validated layout, and production-ready thermal performance.

Supply support for MAX38904AEVK#TDFN 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) designs high-performance analog, mixed-signal, and power management ICs for industrial, communications, computing, and consumer applications.

The MAX38904A product line delivers ultra-low-noise, high-current LDO regulators targeting precision analog front-ends, RF power amplifiers, and high-resolution data converters where PSRR and spectral purity are critical.

FAQ

What is the primary function of the MAX38904AEVK#TDFN?

The MAX38904AEVK#TDFN is an evaluation kit that enables hardware validation of the MAX38904A low-noise 2A LDO regulator. It provides a ready-to-use platform with jumper-configurable output voltage, terminal posts for power/load connections, and a thermally optimized 2-layer PCB - allowing engineers to measure key parameters like dropout, load regulation, and output noise without custom board design.

Does the MAX38904AEVK#TDFN include the MAX38904A IC?

Yes, the MAX38904AEVK#TDFN ships fully assembled with the MAX38904A-ATD+ IC installed in its 14-pin TDFN package. The board is factory-tested and includes all required passive components (capacitors, jumpers, connectors) to operate immediately upon power-up with proper jumper configuration.

How do I configure the output voltage on the MAX38904AEVK#TDFN?

Output voltage is set using two 3-pin jumpers: SELA and SELB. Their shunt positions determine one of nine fixed outputs (1.2V–5.0V). For example, default 3.3V requires SELA shunted on pins 2–3 and SELB uninstalled (Hi-Z). Table 2 in the MAX38904A TDFN EV Kit documentation defines all valid combinations for the MAX38904AEVK#TDFN.

Can the MAX38904AEVK#TDFN be used to evaluate thermal performance?

Yes, the MAX38904AEVK#TDFN uses a 2-layer, 1-oz copper PCB with exposed pad routing matching the MAX38904A's thermal land pattern (90-0063). Its compact 1.0″ × 1.0″ size and copper weight support realistic thermal characterization at full 2A load - enabling junction temperature estimation and heatsink-less operation validation under specified ambient conditions.

Is the MAX38904AEVK#TDFN RoHS-compliant?

Yes, the MAX38904AEVK#TDFN is RoHS-compliant, as indicated by the "#" symbol in its part number and confirmed in Maxim Integrated's ordering information. All components-including the MAX38904A-ATD+, ceramic capacitors, banana jacks, and jumpers-meet lead-free and hazardous substance restrictions per EU Directive 2011/65/EU.