MAX15059AATE+

Special Purpose Regulators Overview

The MAX15059AATE+ is a constant-frequency pulse-width modulating (PWM) step-up DC-DC converter designed for Avalanche Photodiode (APD) bias applications. It features an internal high-side current monitor with adjustable current limiting and operates from an input voltage range of +2.8V to +5.5V. The device generates output voltages up to 76V, delivering 300mW of boost converter output power. Key electrical specifications include a fixed switching frequency of 400kHz, a maximum shutdown current of 2µA, and an operating temperature range from -40°C to +125°C.

Special Purpose Regulators Feature Summary

• Integrates an internal 80V MOSFET and high-speed adjustable current limiting for precise APD control
• Provides accurate high-side current monitoring with an open-drain current-limit indicator flag
• Features ultra-fast APD current limiting with a 1µs response time for rapid protection
• Includes internal soft-start functionality to manage inrush currents during startup

Special Purpose Regulators Applications

• Avalanche Photodiode Biasing and Monitoring
• PIN Diode Bias Supply
• Low-Noise Varactor Diode Bias Supply
• FBON Modules
• GPON Modules

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'AATE+' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the selected component matches the required 300mW output power specification for your application. Cross-reference the package type TQFN-EP-16 with your PCB footprint design. Confirm RoHS compliance status if required by your manufacturing standards. Validate that the 400kHz switching frequency aligns with your system's noise filtering requirements.

Special Purpose Regulators Selection Notes

Select this component when designing circuits requiring high-voltage generation from low-voltage sources for photodetector biasing. The integrated current monitor simplifies feedback loop design compared to external solutions. Consider the 3mm x 3mm thermally enhanced package for space-constrained designs. Evaluate the 2µA shutdown current for battery-powered systems where standby power consumption is critical. Ensure the input voltage range of 2.8V to 5.5V matches your available power rails.

Special Purpose Regulators Part Context

The MAX15059AATE+ belongs to the MAX15059 family of boost converters specialized for optical communication components. It is part of Analog Devices' portfolio of power management ICs targeting high-performance sensing applications. The device complements other Maxim Integrated solutions for fiber optic transceivers and detection modules. Its design focuses on minimizing external component count while maintaining high accuracy and reliability in demanding environments.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with any alternative devices by comparing the 76V output limit, 400kHz frequency, and TQFN-EP-16 package dimensions. Ensure any replacement maintains the same high-side current monitor functionality and 1µs response time for APD protection.