ADP7159ARDZ-04-R7

Overview

The ADP7159ARDZ-04-R7 is an adjustable linear regulator from Analog Devices, operating within a 2.3 V to 5.5 V input voltage range and delivering up to 2 A of output current. It features ultralow noise performance with 0.9 µV rms integrated noise (100 Hz to 100 kHz) and high power supply rejection ratio (PSRR). The device supports output voltages from 1.2 V to 3.3 V, utilizing a 10-lead LFCSP or 8-lead SOIC package.

Feature Summary

• Ultralow noise architecture optimized for RF applications
• High PSRR across wide frequency ranges
• Precision enable pin with defined logic thresholds
• Stable operation with standard ceramic capacitors

Applications

• Phase-locked loops (PLLs)
• Voltage controlled oscillators (VCOs)
• Communications infrastructure systems
• Backhaul and microwave links

Procurement Notes

Verify the specific suffix -R7 indicates reel packaging when sourcing. Confirm the -04 designation matches the required 3.3 V maximum output voltage range for your design. Check manufacturer documentation for current availability status as distribution may vary by region.

Selection Notes

Select this model for designs requiring high current capability alongside strict noise constraints. Ensure input voltage remains above the minimum threshold while maintaining adequate headroom for the desired load current. Verify thermal dissipation requirements based on the selected package type and ambient conditions.

Part Context

This component belongs to the ADP7159 family of RF linear regulators designed for demanding signal integrity applications. It complements fixed-output variants like the ADP7158 and lower-current models such as the ADM7154 series, offering adjustable output flexibility within a compact footprint.

Replacement Considerations

Direct substitutes include other ADP7159 variants with different output voltage ranges or fixed output versions. Cross-reference package options between LFCSP and SOIC if board space constraints differ.