ADP7183ACPZN1.0-R7

Overview

The ADP7183ACPZN1.0-R7 is a negative-output low dropout linear regulator from Analog Devices, operating within an input voltage range of −2.0 V to −5.5 V and delivering up to −300 mA of output current. This specific variant provides a fixed output voltage of −1.0 V with an initial accuracy of ±0.5%. It features ultralow noise performance, specified at 4 μV rms from 100 Hz to 100 kHz, alongside high power supply rejection ratios reaching 75 dB typical at 10 kHz under full load. The device incorporates positive or negative enable logic, operates over a temperature range of −40°C to +125°C, and utilizes an 8-lead, 2 mm × 2 mm LFCSP package.

Feature Summary

• Ultralow noise architecture providing stable regulation for sensitive analog circuits
• High power supply rejection ratio effective across a wide frequency spectrum
• Flexible enable pin supporting both positive and negative logic control levels
• Integrated thermal overload and current-limit protection mechanisms

Applications

• Powering analog-to-digital converters (ADCs)
• Supplying precision amplifiers
• Powering digital-to-analog converters (DACs)
• Medical and healthcare instrumentation systems

Procurement Notes

Verify the exact ordering suffix matches the required fixed output voltage option. Confirm that the package type aligns with the PCB footprint requirements. Ensure the component meets all necessary environmental compliance standards for the intended deployment environment before finalizing procurement.

Selection Notes

Select this regulator when designing circuits requiring negative voltage rails with strict noise constraints. Consider the maximum output current capability relative to the peak load demands. Evaluate the dropout voltage characteristics against the minimum available input voltage to ensure continuous regulation under all operating conditions.

Part Context

This component belongs to the ADP7183 family of low dropout linear regulators designed for high-performance mixed-signal applications. The series offers various fixed output voltage options and an adjustable version to accommodate diverse system requirements while maintaining consistent electrical characteristics and packaging form factors.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-reference specifications carefully to ensure compatibility with existing circuit designs.