Analog Devices Inc./Maxim Integrated MAX15059EVKIT+

Overview

The MAX15059EVKIT+ from Maxim Integrated is an evaluation kit for the MAX15059A/B high-voltage boost converter and APD current monitor IC, designed to simplify development of avalanche photodiode biasing circuits. It supports output voltages up to 76V, delivers up to 300mW (MAX15059A) or 200mW (MAX15059B), features a 400kHz fixed-frequency PWM controller, integrated 80V MOSFET, and accurate ±5% high-side current monitoring with >3-decade dynamic range (500nA–4mA).

For engineers reviewing the MAX15059EVKIT+ datasheet, MAX15059EVKIT+ pinout, MAX15059EVKIT+ application, or MAX15059EVKIT+ equivalent, this kit enables rapid validation of APD bias supply designs, characterization of current-limit response (<1µs), evaluation of low-noise output ripple filtering, and verification of thermal shutdown behavior at +125°C.

Technical Context

The MAX15059EVKIT+ implements the MAX15059AATE+ or MAX15059BATE+ IC in a fully assembled 16-pin TQFN-EP layout with optimized PCB routing for high-voltage stability and low EMI. It includes all critical passive components: 4.7µH power inductor, 1µF input ceramic capacitor, 0.1µF output ceramic capacitor, feedback resistors, RLIM current-limit programming resistor (2.87kΩ), and MOUT load resistor (1kΩ).

This kit operates from a 2.8V–5.5V input, supports programmable output voltage via FB/CNTRL interface, provides open-drain ILIM flag assertion on APD overcurrent, and integrates CLAMP diode protection for MOUT. The board is configured for -40°C to +125°C operation and includes test points for IN, SHDN, FB, ILIM, RLIM, CNTRL, MOUT, BIAS, APD, and LX.

Key Specifications

Availability

The MAX15059EVKIT+ is available at Aetrix Electronics and suitable for fiber-optic transceiver development, GPON module qualification, and APD-based LiDAR sensor prototyping requiring stable component supply and full design validation support.

Supply support for MAX15059EVKIT+ 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 precision, high-voltage, and low-noise applications.

The MAX15059 product line was engineered specifically for fiber-optic receiver front-ends, delivering tightly regulated high-voltage bias with integrated current monitoring to replace discrete APD supply + sense circuits in space-constrained optical modules.

FAQ

What is the MAX15059EVKIT+ used for?

The MAX15059EVKIT+ is an evaluation kit for the MAX15059A/B IC, enabling rapid development and validation of high-voltage APD bias supplies. It allows engineers to verify 76V output regulation, characterize current-monitor accuracy across 500nA–4mA, test ultra-fast (1µs) APD current limiting, and evaluate thermal shutdown behavior at +125°C - all using the exact MAX15059AATE+ or MAX15059BATE+ IC in its production-ready 16-pin TQFN-EP package.

Does the MAX15059EVKIT+ support both MAX15059A and MAX15059B variants?

Yes, the MAX15059EVKIT+ is compatible with both the MAX15059AATE+ (300mW, 1:1 current gain) and MAX15059BATE+ (200mW, 5:1 current gain) ICs. The board includes footprint-compatible pads and pre-populated components (e.g., 2.87kΩ RLIM resistor) optimized for typical APD biasing use cases. Users select the appropriate IC variant based on required output power and current-monitor scaling needs.

What are the key test points accessible on the MAX15059EVKIT+?

The MAX15059EVKIT+ provides solderable test points for all critical signals: IN (input supply), SHDN (shutdown control), FB (feedback node), ILIM (open-drain current-limit flag), RLIM (current-limit programming), CNTRL (voltage-programmable reference), MOUT (current-monitor output), BIAS (high-voltage bias rail), APD (photodiode cathode connection), and LX (switch node). These enable real-time probing of switching waveforms, current-limit response timing, and output regulation stability without board modification.

Can the MAX15059EVKIT+ be used to evaluate low-noise output performance?

Yes, the MAX15059EVKIT+ is configured to demonstrate low-noise APD biasing: it uses a 4.7µH shielded inductor, 0.1µF ceramic output capacitor, and supports optional RC filtering (e.g., 100Ω + 0.1µF) as shown in the typical operating circuit. Measured APD output ripple is <1mVP-P under 4mA load, validating suitability for noise-sensitive fiber-optic receivers where signal integrity depends on stable, clean bias voltage.

Is thermal performance validated on the MAX15059EVKIT+?

Yes, the MAX15059EVKIT+ incorporates the thermally enhanced 3mm × 3mm TQFN-EP package with exposed pad connected to internal copper planes, supporting junction-to-ambient thermal resistance of 48°C/W. The kit has been tested to confirm thermal shutdown activation at +150°C and stable operation across the full -40°C to +125°C range - critical for GPON modules operating in uncontrolled environmental enclosures where the MAX15059EVKIT+ validates real-world thermal margin.