LD6836TD/36H,125

Overview

The LD6836TD/36H,125 is a fixed-output Low Dropout regulator from NXP USA Inc., housed in an SOT753 surface-mounted package. It provides a nominal output voltage of 3.6 V with a maximum output current rating of 300 mA. The device operates within an input voltage range of 2.3 V to 5.5 V and features a typical dropout voltage of 90 mV at full load. Key electrical characteristics include a typical quiescent current of 70 µA, an RMS output noise voltage of 30 µV across the 10 Hz to 100 kHz bandwidth, and a Power Supply Rejection Ratio of 55 dB at 1 kHz. The component includes over-temperature protection, output current limiting, and integrated ESD protection up to 10 kV Human Body Model.

Feature Summary

• Ultra-low dropout performance ensures high efficiency and minimized power consumption during operation.
• Low noise architecture delivers stable regulation suitable for sensitive analog and digital interface circuits.
• Integrated auto-discharge function maintains a low-ohmic state when disabled to rapidly release stored charge.

Applications

• Analog and digital interfaces requiring lower than standard supply voltages
• Mobile appliances such as smartphones and cordless telephones
• Digital still cameras and portable media players

Procurement Notes

Verify the specific ordering suffix to confirm the package type and output configuration. Ensure compatibility with the required nominal output voltage and enable pin logic level. Confirm compliance with RoHS and halogen-free requirements for environmental standards. Check thermal resistance specifications against your PCB layout constraints to ensure adequate heat dissipation under maximum load conditions.

Selection Notes

Select this component for applications requiring a compact SOT753 footprint with precise 3.6 V regulation. Consider the high-ohmic output state when disabled if system isolation is critical. Evaluate the external capacitor requirements to maintain stability and meet the minimum ESR specifications. Assess the input voltage range to ensure it aligns with the available power source without exceeding the absolute maximum ratings.

Part Context

This part belongs to the LD6836 series of ultra-low dropout regulators designed for portable electronics. The series offers various output voltages and package options, including WLCSP4 and SOT753. The LD6836TD variant specifically utilizes a small plastic surface-mounted device package, making it suitable for space-constrained designs in mobile handsets and personal navigation devices.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.