ADPL40502AUJZ-3.0-R7

Overview

The ADPL40502AUJZ-3.0-R7 is a low-dropout linear regulator manufactured by Analog Devices Inc., featuring an ultra-low noise design and a fixed 3 V output voltage. It supports a maximum output current of 200 mA with a typical dropout voltage of 150 mV at full load. The device operates within an input voltage range of 2.2 V to 5.5 V and maintains a quiescent current of 290 uA. It provides high power supply rejection ratio (PSRR) performance, typically 70 dB, ensuring stable regulation. The component is housed in a compact LFCSP-6 surface-mount package and is rated for operation across an extended temperature range from -40 C to +125 C.

Feature Summary

• Ultra-low noise architecture designed for sensitive analog circuitry
• Fixed 3 V output capability with 200 mA load drive
• Low dropout voltage characteristic for efficient power management
• High power supply rejection ratio for noise suppression

Applications

• Portable battery-powered electronic devices requiring clean power rails
• RF and wireless communication modules needing low-noise voltage sources
• Precision sensor interfaces demanding stable DC supply voltages
• Medical instrumentation circuits with strict noise requirements

Procurement Notes

Verify the specific suffix AUJZ against official Analog Devices documentation to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint for the LFCSP-6 configuration. Cross-reference the part number with authorized distributors to confirm current availability status and lead times, as supply conditions may vary. Confirm RoHS compliance details if required for your manufacturing standards.

Selection Notes

Select this component when system design requires a fixed 3 V rail with minimal noise contribution from the power supply. Consider the 200 mA output limit to ensure it meets the peak current demands of the load. Evaluate the 2.2 V minimum input voltage constraint against your available supply rails. The LFCSP-6 package offers a small form factor suitable for space-constrained designs compared to larger packages.

Part Context

This part belongs to the ADPL40502 series of low-noise LDO regulators from Analog Devices. The series is characterized by its ability to provide clean power for high-performance applications. The ADPL40502 variant specifically targets markets where noise sensitivity is critical, such as audio and RF systems. The fixed 3.0 V version simplifies design implementation by removing the need for external feedback resistors.

Replacement Considerations

Check Analog Devices datasheets for other members of the ADPL40502 family with different output voltages or current ratings. Verify pin-to-pin compatibility before substituting with similar LDOs from other manufacturers. Ensure that any replacement part meets the same noise and PSRR specifications required by the application.