LD6805K/15P,115

Overview

The LD6805K/15P,115 is a fixed-output low-dropout regulator (LDO) providing a nominal voltage of 1.5 V with a maximum output current rating of 150 mA. It operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 250 mV at full load. The device incorporates an integrated pull-down switching transistor that ensures a low-ohmic output state during disabled mode for auto discharge functionality. It achieves a power supply rejection ratio (PSRR) of 75 dB at 1 kHz and includes overcurrent protection.

Feature Summary

• Integrated pull-down switching transistor provides a low-ohmic output state in disabled mode for auto discharge
• High power supply rejection ratio of 75 dB at 1 kHz for effective noise suppression
• Low quiescent current consumption in shutdown mode
• Built-in overcurrent protection circuitry

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 the specific suffix '115' against official Nexperia documentation to confirm packaging details such as tape and reel specifications or cut tape availability. Confirm RoHS compliance status and halogen-free characteristics directly from the manufacturer's latest product data sheet before procurement. Ensure the component meets environmental requirements for the intended application.

Selection Notes

Select this component when a compact LDO with high PSRR is required for portable applications. The 'P' suffix indicates the inclusion of an auto-discharge feature, which is critical for systems needing rapid output voltage decay upon shutdown. Verify that the required output voltage matches the fixed 1.5 V specification and that the input voltage remains within the 2.3 V to 5.5 V operating range.

Part Context

This part belongs to the LD6805 series of ultra-small, high-performance low-dropout regulators manufactured by NXP Semiconductors. The series is designed for applications demanding component miniaturization and superior operating stability. It utilizes monolithic silicon technology and is housed in a DFN1010C-4 plastic package, making it suitable for space-constrained designs in consumer electronics.

Replacement Considerations

Consult the official datasheet for alternative type numbers within the LD6805 series offering different fixed output voltages or high-ohmic output states (suffix 'H'). Verify pin compatibility and thermal performance when substituting with other LDOs from the same family or competitors.