LD6806CX4/13P,315

Overview

The LD6806CX4/13P,315 is a low-dropout regulator (LDO) from the LD6806 series manufactured by NXP Semiconductors. It provides a fixed nominal output voltage of 1.3 V with a maximum output current rating of 200 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 60 mV at full load. It utilizes a WLCSP4 wafer level chip-size package with a 0.4 mm pitch. Unlike high-ohmic variants, this 'P' suffix version includes a pull-down switching transistor that ensures a low-ohmic output state when disabled.

Feature Summary

• Integrated pull-down switching transistor for low-ohmic output stage during disable mode
• Ultra-low noise performance with typical RMS output noise of 30 µV over 10 Hz to 100 kHz bandwidth
• High power supply rejection ratio of 55 dB at 1 kHz frequency
• Built-in thermal protection and current limiting safeguards

Applications

• Analog and digital interfaces requiring lower than standard supply voltage in mobile appliances
• Mobile phone handsets and cordless telephones
• Personal digital devices and media players

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Confirm RoHS compliance status and environmental declarations prior to integration. Ensure the design accounts for the required external load capacitance to maintain stability. Check for any applicable quality or reliability certifications relevant to consumer applications.

Selection Notes

Select this component for designs prioritizing miniaturization due to its small WLCSP footprint. Choose the 'P' variant specifically if a defined low-impedance state is required at the output pin when the enable signal is inactive. Ensure the application environment stays within the specified ambient temperature range of -40 °C to +85 °C for optimal performance.

Part Context

This part belongs to the LD6806 series, which offers ultra-low-dropout regulation with low noise characteristics. The series supports various packages including WLCSP4, SOT886, and SOT753. It is designed for battery-powered portable electronics where efficiency and space constraints are critical. The monolithic silicon technology ensures superior operating stability across different load conditions.

Replacement Considerations

LD6806CX4/13H: Identical electrical performance but features a high-ohmic (3-state) output instead of a pull-down transistor when disabled.