ADP7159ACPZ-04-R2

Overview

The ADP7159ACPZ-04-R2 is a positive adjustable linear voltage regulator from Analog Devices, housed in a 10-pin LFCSP-WD (3x3) surface-mount package. It operates with an input voltage range of 2.3 V to 5.5 V and delivers up to 2 A of output current. The device supports adjustable output voltages between 1.2 V and 3.3 V. Key electrical specifications include a typical PSRR of 45 dB, a dropout voltage of 200 mV, and a quiescent current of 9 mA. It features line regulation of 0.1 %/V and load regulation of 0.3 %/A. The component is rated for operation between -40°C and +125°C.

Feature Summary

• Ultra-low noise design optimized for RF applications
• High power supply rejection ratio for clean power delivery
• Adjustable output voltage capability within specified limits

Applications

• RF circuit power supplies
• Low noise analog systems
• Portable electronic devices requiring efficient power management

Procurement Notes

Verify part status carefully as this specific suffix variant may be obsolete or discontinued. Confirm availability through authorized distributors or secondary markets if standard channels are unavailable. Ensure the 10-LFCSP-WD package matches your PCB footprint exactly. Check RoHS compliance documentation for final assembly requirements. Validate that the adjustable output configuration meets your specific voltage needs before procurement.

Selection Notes

Select this component when ultra-low noise performance is critical for sensitive RF or analog circuits. The 2 A current capacity suits moderate-to-high power applications. Consider the 200 mV dropout voltage for efficiency near the minimum input voltage. The adjustable output allows flexibility in setting precise voltage levels. Ensure thermal management is adequate for the LFCSP package under full load conditions.

Part Context

This part belongs to the ADP7159 series of high PSRR, RF linear regulators. The series includes multiple models optimized for different input/output voltage combinations to maximize efficiency. The ADP7159ACPZ-04-R2 specifically denotes the adjustable version in the LFCSP-10 package with tape-and-reel packaging. It shares core architecture with other variants but differs in output configuration and packaging style.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with any alternative components by matching the 10-LFCSP-WD package, 2 A current rating, and 2.3 V to 5.5 V input range. Ensure replacement parts offer comparable PSRR and noise performance for RF applications.