LD6836TD/29P,125

Overview

The LD6836TD/29P,125 is a Low Dropout Regulator (LDO) from the LD6836 series manufactured by NXP Semiconductors. It provides a fixed nominal output voltage of 2.9 V with an operating input voltage range of 2.3 V to 5.5 V. The device supports a maximum output current rating of 300 mA and features a typical dropout voltage of 90 mV at full load. It utilizes a small SOT753 Surface-Mounted Device plastic package.

Feature Summary

• Includes an integrated pull-down switching transistor that provides a low-ohmic output state when disabled, functioning as an auto discharge feature.
• Offers ultra-low dropout performance with low noise characteristics suitable for sensitive analog and digital interfaces.
• Incorporates built-in over-temperature protection and output current limiting to ensure operational safety under fault conditions.

Applications

• Analog and digital interfaces requiring lower than standard supply voltages in mobile appliances
• Smartphones, 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 'P' indicates the pull-down output configuration with auto-discharge functionality rather than the high-ohmic state found in 'H' variants. Confirm the 'TD' designation corresponds to the SOT753 package type. Ensure the ordering code matches the required 2.9 V nominal output voltage specification before finalizing procurement orders.

Selection Notes

Select this component when a fixed 2.9 V rail is required within a 2.3 V to 5.5 V input window. The 'P' variant is necessary if rapid output voltage discharge upon shutdown is needed. Consider the SOT753 package size constraints and verify external capacitor ESR requirements for stability during design implementation.

Part Context

This part belongs to the LD6836 series of ultra-low dropout regulators designed for miniaturized portable applications. The series includes WLCSP and SOT753 packages with various fixed output voltages ranging from 1.2 V to 3.6 V. All devices are manufactured using monolithic silicon technology to ensure reliability in consumer electronics.

Replacement Considerations

LD6836TD/29H,125: Identical electrical specifications but features a high-ohmic (3-state) output instead of the pull-down auto-discharge function.