LD6836TD/13P,125

Overview

The LD6836TD/13P,125 is a fixed-output Low Dropout regulator from NXP Semiconductors, delivering a nominal 1.3 V output with a maximum current rating of 300 mA. It 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. The device incorporates an integrated pull-down switching transistor for auto-discharge functionality when disabled. Electrical specifications include a typical quiescent current of 70 µA in active mode and 0.1 µA in shutdown. It provides over-temperature protection, output current limiting, and ESD protection up to 10 kV HBM.

Feature Summary

• Ultra-low dropout performance ensuring high efficiency under varying load conditions
• Integrated auto-discharge function via pull-down transistor for rapid output voltage decay
• Low noise operation suitable for sensitive analog and digital interface circuits
• Robust protection mechanisms including thermal shutdown and short-circuit current limiting

Applications

• Power supply regulation for mobile phone handsets and smartphones
• Voltage conditioning for personal navigation devices
• Power management in portable media players
• Supply rails for digital still cameras
• Interface power supplies for cordless telephones

Procurement Notes

Verify the specific suffix '125' against official NXP documentation to confirm tape-and-reel quantity or lot-specific coding, as standard datasheets list the base part number LD6836TD/13P. Confirm RoHS compliance status and ensure the SOT753 package orientation matches the design footprint. Cross-reference the marking code '9BP' on the physical component to validate authenticity and correct output voltage setting.

Selection Notes

Select this component when a fixed 1.3 V rail is required with minimal board space constraints. The SOT753 package offers a compact surface-mount solution compared to WLCSP alternatives. Ensure the application benefits from the auto-discharge feature for safety or power-down requirements. Verify that the external capacitor ESR remains within the specified range to maintain stability across the operating temperature range.

Part Context

This device belongs to the LD6836 series of ultra-low dropout regulators designed for portable electronics. The series includes variants in both Wafer-Level Chip-Scale Packages (WLCSP4) and the SOT753 plastic surface-mounted package. The 'P' designation indicates the presence of the pull-down transistor, distinguishing it from 'H' variants which offer a high-ohmic state upon disablement.

Replacement Considerations

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