MAX8515AEXK

Overview

The MAX8515AEXK is a wide-input shunt regulator designed for isolated DC-to-DC converters. It features a 0.6V reference with ±0.5% initial accuracy at +25°C and ±1% accuracy across the -40°C to +85°C temperature range. The device supports an input voltage range of 1.7V to 28V and sinks up to 20mA at output voltages as low as 0.2V. It utilizes a 5-pin SC-70 package.

Feature Summary

• Separate supply voltage and feedback inputs from the output shunt stage
• Directly drives optocouplers for isolation applications
• Low dynamic output impedance of 0.2Ω

Applications

• Isolated DC-to-DC converters
• Network, telecom, and cellular base station power supplies
• Shunt regulator adjustable voltage references

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check current availability as supply may be limited. Ensure the specific suffix matches required accuracy grades before procurement.

Selection Notes

Select this part when high-accuracy regulation is needed in isolated topologies. The separate bias input allows operation independent of the converter output voltage. Verify that the 20mA sink capability meets the optocoupler drive requirements of the target design.

Part Context

This component belongs to the MAX8515 family of shunt regulators manufactured by Analog Devices / Maxim Integrated. It is specifically engineered to simplify voltage regulation and overvoltage protection functions in high-accuracy isolated power conversion systems.

Replacement Considerations

The MAX8515EXK is a similar variant within the same family but offers ±1% initial accuracy instead of ±0.5%. Verify if the relaxed accuracy specification meets the application requirements before substitution.