ADP7102ARDZ-3.3-R7

Overview

The ADP7102ARDZ-3.3-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 a fixed 3.3 V output with an initial accuracy of ±0.8%. It delivers low noise performance, specified at 15 μV rms, and maintains high power supply rejection ratio (PSRR) of 60 dB at 10 kHz. The regulator includes reverse current protection, foldback current limit, thermal overload protection, and a user-programmable precision UVLO/enable function alongside a power-good indicator.

Feature Summary

• Provides stable regulation for noise-sensitive analog and mixed-signal circuits using only small ceramic capacitors.
• Includes digital power-good output and programmable undervoltage lockout for system monitoring and sequencing.
• Features reverse current protection and thermal overload protection to safeguard the circuit under fault conditions.

Applications

• Regulation for ADC and DAC circuits
• Precision amplifiers and high frequency oscillators
• Clocks and phase-locked loops

Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the ARDZ designation corresponds to the SOIC-8 package variant. Ensure compatibility with the required operating temperature range and verify RoHS compliance status through official manufacturer documentation before finalizing procurement.

Selection Notes

Select this component for applications requiring a fixed 3.3 V rail from higher input voltages up to 20 V. Consider the low quiescent current for battery-operated systems. Evaluate thermal dissipation requirements based on the load current and PCB layout, as the SOIC-8 package has specific thermal resistance characteristics that impact maximum junction temperature limits.

Part Context

This part belongs to the ADP7102 family of high input voltage LDO regulators. The series offers both fixed and adjustable output options in compact packages. The ADP7102 is designed for high-performance analog applications, distinguishing itself with ultralow noise and excellent transient response capabilities suitable for sensitive signal processing environments.

Replacement Considerations

Check datasheet for pin-compatible alternatives within the ADP7102 series or other Analog Devices LDOs offering similar 3.3 V fixed outputs and 300 mA current capacity. Verify package dimensions and thermal performance match the existing design constraints.