LD6816CX4/22H,315

Overview

The LD6816CX4/22H,315 is a fixed-output Low DropOut regulator from the NXP LD6816 series. It provides a nominal output voltage of 2.2 V with a maximum output current rating of 150 mA and a peak capability of 300 mA. The device operates within an input voltage range of 2.3 V to 5.5 V. Key electrical parameters include a typical dropout voltage of 45 mV at full load, a quiescent current of 70 µA (maximum 100 µA), and a typical RMS output noise voltage of 30 µV across the 10 Hz to 100 kHz frequency band. The unit features over-temperature protection and output current limiting.

Feature Summary

• Ultra-low dropout performance with minimal power loss under load
• Low noise operation suitable for sensitive analog and digital interfaces
• High-ohmic three-state output when disabled for circuit isolation
• Integrated thermal shutdown and overcurrent protection mechanisms

Applications

• Smart phones and mobile phone handsets
• Cordless telephones
• Digital still cameras
• Portable media players

Procurement Notes

Verify the specific suffix '315' against official documentation to confirm reel packaging specifications. Confirm RoHS compliance status as detailed in the manufacturer's datasheet. Ensure the high-ohmic output variant matches system requirements for disabled states. Validate component authenticity through authorized distribution channels.

Selection Notes

Select this component for portable applications requiring miniaturization due to its WLCSP package. Choose the 'H' suffix version specifically when a high-impedance state is required upon disablement rather than auto-discharge. Ensure external capacitors meet the minimum ESR and capacitance values for stability. Verify that the 2.2 V output aligns with downstream logic supply requirements.

Part Context

This part belongs to the LD6816 series of ultra-low dropout regulators manufactured by NXP Semiconductors. The series utilizes monolithic silicon technology and is designed for component miniaturization in portable electronics. The CX4 designation indicates a Wafer-Level Chip-Scale Package with a 0.4 mm pitch.

Replacement Considerations

LD6816CX4/22P: Identical electrical characteristics but includes an auto-discharge pull-down transistor instead of a high-ohmic state.