Analog Devices Inc./Maxim Integrated MAX38902EEVKIT#

Overview

MAX38902EEVKIT# from Analog Devices is an evaluation kit for the MAX38902E low-noise 500mA LDO linear regulator, designed to validate performance in noise-sensitive analog and mixed-signal systems. It supports adjustable output (0.8V–5.0V), delivers 14µVRMS output noise (10Hz–100kHz), maintains ±1% DC accuracy over load/line/temperature, and features active discharge (800Ω), POK output, and programmable soft-start.

For engineers reviewing the MAX38902EEVKIT# datasheet, MAX38902EEVKIT# pinout, MAX38902EEVKIT# application, or MAX38902EEVKIT# equivalent, this kit enables rapid characterization of dropout behavior (100mV at 500mA), PSRR (45dB @ 100kHz), thermal shutdown (165°C), and BYP-capacitor–controlled startup slew rate - critical for high-resolution data acquisition, audio power rails, and communication circuitry validation.

Technical Context

The MAX38902EEVKIT# implements the full functional circuit of the MAX38902E IC, including IN, OUT, EN, FB, POK, BYP, INS, and GND connections on a compact PCB with pre-mounted 10µF CIN/COUT and 10nF BYP capacitors. It supports external resistor feedback for output voltage configuration and exposes all critical test points for noise, transient, and POK timing measurements.

Designed for lab-based validation, the kit integrates thermal vias under the exposed pad of the 2mm × 2mm TDFN-8 package and provides jumper-selectable enable control, pull-up options for POK, and header access to FB and BYP nodes - enabling direct probing of soft-start ramp, reverse-current protection activation, and active discharge decay waveform.

Key Specifications

Availability

MAX38902EEVKIT# is available at Aetrix Electronics and suitable for high-resolution data acquisition systems, audio power supply validation, and communication circuitry design requiring stable component supply and fast-turnaround LDO characterization.

Supply support for MAX38902EEVKIT# 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, and communications markets since 1965.

The MAX38902E product line targets ultra-low-noise power regulation for sensitive analog front-ends - specifically engineered for applications where PSRR, output noise, and fast transient response directly impact signal integrity.

FAQ

What is the primary purpose of the MAX38902EEVKIT#?

The MAX38902EEVKIT# is an evaluation platform for the MAX38902E low-noise LDO regulator. It allows engineers to verify key performance metrics - including 14µVRMS output noise, 100mV dropout at 500mA, ±1% output accuracy, POK timing, and active discharge behavior - using a fully populated, test-ready PCB with documented layout and component values.

Does the MAX38902EEVKIT# support adjustable output voltage?

Yes. The MAX38902EEVKIT# supports resistor-based output voltage adjustment from 0.8V to 5.0V via the FB pin, consistent with the MAX38902E's external feedback architecture. The board includes solder jumpers and test points to facilitate quick resistor changes and real-time VOUT validation across the full range.

How does the MAX38902EEVKIT# enable noise and PSRR measurement?

The MAX38902EEVKIT# incorporates optimized layout practices - including dedicated ground planes, thermal vias under the exposed pad, and low-inductance capacitor placement - to preserve the MAX38902E's specified 14µVRMS output noise (10Hz–100kHz) and 45dB PSRR at 100kHz. Test points at IN, OUT, and BYP allow direct probe access for spectrum analyzer and network analyzer measurements.

Can the MAX38902EEVKIT# demonstrate thermal shutdown and overcurrent protection?

Yes. The MAX38902EEVKIT# fully exposes thermal and current-limit behaviors of the MAX38902E: shorting OUT to GND triggers current limiting (~700mA typ), followed by thermal shutdown at 165°C (with recovery at 150°C). These events are observable via OUT voltage collapse, POK state change, and temperature monitoring at the exposed pad.

Is the MAX38902EEVKIT# compatible with standard lab equipment?

Yes. The MAX38902EEVKIT# features 0.1"-spaced headers for IN, EN, POK, FB, BYP, and GND, enabling direct connection to bench power supplies, oscilloscopes, and logic analyzers. It requires no additional adapters or firmware - operation is immediate upon applying 1.7V–5.5V input and configuring enable and feedback resistors.