LD6806F/18P,115

Overview

The LD6806F/18P,115 is a low-dropout regulator (LDO) from NXP Semiconductors featuring an ultra-low dropout voltage of 60 mV at a 200 mA output rating. It operates within an input voltage range of 2.3 V to 5.5 V and provides a fixed nominal output voltage of 1.8 V. The device incorporates a pull-down switching transistor that ensures a low-ohmic output state when disabled. Key electrical characteristics include a typical quiescent current of 70 µA in active mode and 1.0 µA in shutdown mode. It delivers 30 µV RMS output noise over the 10 Hz to 100 kHz bandwidth and achieves a power supply rejection ratio of 55 dB at 1 kHz.

Feature Summary

• Ultra-low dropout voltage capability for efficient power management
• Low noise performance suitable for sensitive analog and digital interfaces
• Integrated thermal protection and current limiting for enhanced reliability
• Active HIGH enable pin with integrated ESD protection

Applications

• Mobile phone handsets requiring component miniaturization
• Cordless telephones needing lower than standard supply voltages
• Personal digital devices and media players

Procurement Notes

Verify the specific suffix '115' against official documentation to confirm tape-and-reel packaging details or specific manufacturing lot codes. Ensure compatibility with lead-free RoHS standards as indicated by the product profile. Confirm availability status directly with authorized distributors, as datasheet information may not reflect current production lifecycle stages.

Selection Notes

Select this component for applications demanding high efficiency under light load conditions due to its low quiescent current. The 1.8 V fixed output makes it suitable for powering logic circuits and RF sections in portable electronics. Consider the SOT886 package size for space-constrained designs. Ensure external capacitors meet the minimum capacitance requirements for stability.

Part Context

This part belongs to the LD6806 series of ultra-low-dropout regulators designed for mobile appliances. The series offers various output voltages and packages, including WLCSP4, SOT886, and SOT753. The 'F' suffix denotes the SOT886 plastic extremely thin small outline package, while 'P' indicates the low-ohmic output configuration upon disable.

Replacement Considerations

Check for other variants within the LD6806 family with different output voltages or package types if form factor changes are acceptable. Verify functional equivalence with other LDOs offering similar dropout and noise specifications.