LD6805K/23H,115

Overview

The LD6805K/23H,115 is a fixed-output Low Dropout regulator from the NXP LD6805 series. It provides a nominal output voltage of 2.3 V with a maximum load current rating of 150 mA. The device 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. It incorporates high Power Supply Rejection Ratio (PSRR) performance of 75 dB at 1 kHz and low quiescent current in shutdown mode. The component utilizes a DFN1010C-4 plastic package measuring 1 x 1 x 0.55 mm.

Feature Summary

• Ultra-high PSRR capability for effective noise suppression
• High-ohmic output state when disabled
• Integrated over-current protection
• Low quiescent current operation

Applications

• Smart phones and mobile phone handsets
• Digital still cameras
• Portable media players
• Personal navigation devices

Procurement Notes

Verify the specific ordering suffix matches the required configuration. Confirm that the 'H' designation corresponds to the high-ohmic output state requirement for the application. Ensure the thermal management strategy accounts for the small DFN package size and recommended PCB layout guidelines provided in the datasheet.

Selection Notes

Select this part when a compact power solution is needed for portable electronics requiring stable 2.3 V rails. Consider the high-ohmic disabled state if system isolation is critical. Evaluate the input voltage headroom against the 250 mV dropout characteristic under expected load conditions to ensure linear regulation stability.

Part Context

This component belongs to the LD6805 series of low-dropout regulators designed for miniaturized applications. The series offers various fixed output voltages ranging from 1.2 V to 3.6 V. The LD6805K/xxH variant specifically distinguishes itself by providing a high-impedance output state upon disable, contrasting with the pull-down auto-discharge function found in the xxP variants.

Replacement Considerations

LD6805K/23P,115