ADP7159ACPZ-01-R7

Overview

The ADP7159ACPZ-01-R7 is an adjustable linear regulator from Analog Devices, operating within a 2.3 V to 5.5 V input range and delivering up to 2 A of load current. It features ultralow noise performance with 0.9 µV rms integrated noise (100 Hz to 100 kHz) and high PSRR of 55 dB at 1 kHz to 100 kHz. The device supports output voltages from 1.2 V to 3.3 V with ±0.6% initial accuracy. It utilizes a 10-lead LFCSP package and includes precision enable functionality.

Feature Summary

• Ultralow noise architecture optimized for RF applications
• High power supply rejection ratio across wide frequency bands
• Precision enable pin with defined logic thresholds
• Stable operation with standard ceramic output capacitors

Applications

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

Procurement Notes

Verify the specific suffix -01 corresponds to the required output voltage range during procurement. Confirm package availability as distribution status varies by region. Ensure component authenticity through authorized channels to maintain specified electrical characteristics.

Selection Notes

Select this model when low noise and high PSRR are critical for sensitive RF circuits. Consider the input-to-output voltage differential for thermal management at maximum load currents. Evaluate capacitor ESR requirements to ensure loop stability under varying temperature conditions.

Part Context

This component belongs to the ADP7159 series of ultra-low noise linear regulators designed for radio frequency applications. It shares architectural similarities with fixed-output variants like the ADP7158 but offers adjustable output flexibility. The series targets infrastructure and communications equipment requiring clean power supplies.

Replacement Considerations

Direct substitutes include other models within the ADP7159 family or related ADM71xx series regulators. Verify pin compatibility and electrical specifications before substitution.