Analog Devices Inc./Maxim Integrated MAX25308EVKIT#

Overview

MAX25308EVKIT# from Maxim Integrated is a fully assembled evaluation kit for the MAX25308 triple-output LDO regulator, supporting independent testing of 600mA (OUT1) and dual 300mA (OUT2/OUT3) channels with ≤37µVRMS output noise (10Hz–100kHz), ±1.25% DC accuracy, and 1.95mA max no-load supply current. It enables rapid validation of low-noise power delivery in automotive infotainment and ADAS domain controllers.

For engineers reviewing the MAX25308EVKIT# datasheet, MAX25308EVKIT# pinout, MAX25308EVKIT# application, or MAX25308EVKIT# equivalent, this page delivers verified hardware interface details, jumper-configurable channel enable/reset monitoring, SMA-based noise measurement capability, and factory-programmable 0.6V–3.7875V outputs in 12.5mV steps - all critical for LDO selection in safety-critical embedded systems.

Technical Context

The MAX25308EVKIT# implements the MAX25308AATEA/V+ IC - a 3-channel monolithic LDO with independent EN and open-drain RESETB per channel, 1.7V–5.5V input range, and 155mV max dropout at full load. Each output is factory-set without external resistors.

Hardware design supports flexible input sourcing: IN2 and IN3 can be tied to IN1 via jumpers IN_1-2/IN_1-3 or isolated for independent supplies. SMA connectors (VOUT1–VOUT3) and exposed ceramic capacitor pads enable precise noise and PSRR (70dB @ 10kHz) characterization.

Key Specifications

Availability

MAX25308EVKIT# is available at Aetrix Electronics and suitable for automotive ADAS sensor modules, infotainment head units, industrial PLC I/O power rails, and medical imaging subsystems requiring stable component supply and validated reference designs.

Supply support for MAX25308EVKIT# 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 and mixed-signal ICs for automotive, industrial, and communications applications, with emphasis on reliability and functional safety.

The MAX25308 product line targets automotive power management, delivering ultra-low-noise, high-accuracy LDOs for radar, camera, and domain controller subsystems where EMI resilience and ASIL compliance are critical.

FAQ

What is the primary function of the MAX25308EVKIT#?

The MAX25308EVKIT# is an evaluation platform for the MAX25308 triple-output LDO regulator. It allows engineers to validate output regulation, noise performance, enable sequencing, and RESETB assertion behavior under real-world load and input conditions. The board includes test points, SMA connectors, and configurable jumpers to isolate and characterize each of the three regulated outputs independently.

Does the MAX25308EVKIT# support independent input supplies for each channel?

Yes - the MAX25308EVKIT# supports independent input supplies for OUT2 and OUT3. By removing jumpers IN_1-2 and IN_1-3, IN2 and IN3 are disconnected from IN1 and can be driven by separate external sources. This enables testing of mixed-input scenarios, such as powering OUT1 from a 3.3V rail while supplying OUT2/OUT3 from a 5V backup source.

How is output voltage configured on the MAX25308EVKIT#?

The MAX25308EVKIT# uses the MAX25308AATEA/V+, which has factory-programmed output voltages between 0.6V and 3.7875V in 12.5mV steps. No external resistors or configuration pins are required. Voltage selection is fixed per device variant; users select the appropriate pre-programmed version (e.g., MAX25308AATEA/V+) based on their target output levels.

Can the MAX25308EVKIT# measure power-supply rejection ratio (PSRR)?

Yes - the MAX25308EVKIT# supports PSRR measurement via exposed ceramic capacitor pads (IN1/2/3, OUT1/2/3) and SMA connectors (VOUT1–VOUT3). These provide low-inductance access points for injecting AC ripple and measuring output response. The board's layout minimizes parasitic coupling, enabling accurate PSRR validation up to 10kHz (70dB typical).

What power-good signaling capability does the MAX25308EVKIT# provide?

The MAX25308EVKIT# provides independent open-drain RESETB signals for each output (RESETB1–RESETB3), pulled up to their respective input rails (IN1/IN2/IN3) via 10kΩ resistors. Jumpers RESETB1–RESETB3 allow connection to test equipment, and test points RESETB_1–RESETB_3 enable direct probing. RESETB asserts low when its corresponding output falls outside regulation tolerance.