LD6805K/33P,115

Overview

The LD6805K/33P,115 is a fixed-output Low DropOut regulator from the NXP LD6805 series. It provides a nominal output voltage of 3.3 V with a maximum output current rating of 150 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a dropout voltage of 250 mV at full load. It incorporates an auto discharge function via a pull-down switching transistor in disabled mode. Key electrical characteristics include a power supply rejection ratio of 75 dB at 1 kHz and a typical quiescent current of 0.1 µA in shutdown mode.

Feature Summary

• Integrates a pull-down switching transistor to provide a low-ohmic output state when disabled, enabling rapid auto discharge of external capacitors.
• Delivers high power supply rejection ratio performance to suppress unwanted input signals and noise.
• Operates with ultra-low quiescent current in shutdown mode to minimize power consumption.
• Includes integrated electrostatic discharge protection up to 6 kV Human Body Model.

Applications

• Powering analog and digital interfaces requiring lower than standard supply voltages in mobile appliances
• Smart phones, mobile phone handsets, and cordless telephones
• Digital still cameras, mobile internet devices, personal navigation devices, and portable media players

Procurement Notes

Verify that the specific suffix '115' corresponds to the requested packaging configuration as defined by NXP Semiconductors. Confirm the component status aligns with project requirements, noting that product availability may change. Ensure the selected variant matches the required 3.3 V fixed output specification for the design.

Selection Notes

Select this component when a compact solution with fast output discharge is required. The LD6805K/xxP variant is suitable for applications needing the output pin pulled low upon disablement. Verify that the system input voltage remains within the 2.3 V to 5.5 V range and that the load current does not exceed 150 mA during operation.

Part Context

This part belongs to the LD6805 series of low-dropout regulators manufactured by NXP Semiconductors. The series is designed for portable applications requiring component miniaturization and is available in a 1x1 mm DFN plastic package. The family includes variants with either high-ohmic or pull-down output states depending on the ordering suffix.

Replacement Considerations

LD6805K/33H,115