ADP7102ARDZ-R7

Overview

The ADP7102ARDZ-R7 is a CMOS low dropout linear regulator manufactured by Analog Devices Inc. It operates from an input voltage range of 3.3 V to 20 V and provides up to 300 mA of output current. The device features low noise performance, with an output noise of 15 μV rms for fixed output versions. It includes reverse current protection, foldback current limit, and thermal overload protection. The adjustable version allows output voltages from 1.22 V to VIN minus dropout voltage. It is housed in an 8-lead SOIC package.

Feature Summary

• Low noise operation suitable for sensitive analog circuits
• Reverse current protection prevents backflow when disabled
• Foldback current limit and thermal overload protection ensure safe operation under fault conditions
• User programmable precision undervoltage lockout facilitates power supply sequencing

Applications

• Regulation for ADC and DAC circuits
• Precision amplifiers and high frequency oscillators
• Clocks and phase-locked loops
• Communications and infrastructure systems
• Medical and healthcare equipment

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ARDZ designation corresponds to the industrial temperature range and SOIC package type required for your design. Check manufacturer documentation for current availability status as distribution channels may vary. Ensure compatibility with your board layout regarding the exposed pad connection if using similar packages.

Selection Notes

Select this component for applications requiring high input voltage regulation up to 20 V with moderate current demands. It is suitable for battery-operated portable equipment due to its low quiescent current characteristics. Consider the adjustable output variant if precise voltage levels outside standard fixed options are needed. Ensure adequate thermal management on the PCB to handle power dissipation at maximum load currents.

Part Context

This part belongs to the ADP7102 family of low dropout regulators. The family offers both fixed and adjustable output voltage options. Other variants in the series include different fixed voltage outputs such as 1.5 V, 1.8 V, 2.5 V, 3 V, 5 V, and 9 V. The family is designed for high-performance analog and mixed-signal circuits operating from various rail voltages.

Replacement Considerations

Direct substitutes within the same family include other ADP7102 variants with fixed output voltages like ADP7102ARDZ-3.3-R7 or ADP7102ARDZ-5-R7. Cross-family replacements should match the 300 mA current rating, 20 V input limit, and SOIC-8 package footprint while verifying pin compatibility and electrical specifications.