ADP7105ARDZ-1.8-R7

Overview

The ADP7105ARDZ-1.8-R7 is a fixed-output low dropout linear regulator providing a regulated 1.8 V output with a maximum current of 500 mA. It operates from an input voltage range of 3.3 V to 20 V and features a typical power supply rejection ratio of 60 dB at 10 kHz. The device incorporates reverse current protection, programmable soft start, and foldback current limiting. It includes a user-programmable precision undervoltage lockout function and a digital power-good indicator. The component utilizes an 8-lead SOIC package.

Feature Summary

• Provides low noise regulation suitable for sensitive analog circuits
• Features reverse current protection for system safety
• Includes programmable soft start for inrush current control
• Offers a digital power-good status indicator

Applications

• Regulation of ADC and DAC circuits
• Precision amplifier power supplies
• High frequency oscillator and clock regulation
• PLL power management

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the reel packaging configuration. Ensure the selected variant matches the required fixed output voltage and package type for the target application design.

Selection Notes

Select this component for applications requiring high input voltage tolerance up to 20 V. Consider the thermal resistance characteristics of the SOIC package when designing for maximum load currents. Verify that the minimum input-to-output differential meets the dropout requirements under all operating conditions.

Part Context

This part belongs to the ADP7105 family of low dropout regulators manufactured by Analog Devices. The series offers various fixed output voltages and adjustable configurations. The device is designed for high-performance mixed-signal systems requiring clean power rails.

Replacement Considerations

Consult official manufacturer documentation for verified substitute part numbers within the same product family or equivalent specifications.