LD6806F/36P,115

Overview

The LD6806F/36P,115 is a low-dropout regulator (LDO) from NXP Semiconductors. It provides a fixed nominal output voltage of 3.6 V with a maximum continuous 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 the rated load. It utilizes a SOT753 plastic surface-mounted package. Key electrical characteristics include a typical quiescent current of 70 µA in active mode and 1.0 µA in shutdown mode. The regulator incorporates integrated thermal protection, overcurrent protection, and ESD protection rated at 10 kV Human Body Model.

Feature Summary

• Low-ohmic pull-down switching transistor ensures a low-resistance output state when the device is disabled.
• Integrated temperature watchdog and current limiter provide robust protection against thermal overload and short circuits.
• Ultra-low noise performance with a typical RMS output noise voltage of 30 µV across the 10 Hz to 100 kHz bandwidth.
• High power supply rejection ratio of 55 dB at 1 kHz effectively suppresses input voltage ripples.

Applications

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

Procurement Notes

Verify that the ordering suffix ',115' corresponds to the specific tape-and-reel packaging configuration defined by NXP for this part number. Confirm the component is sourced directly from authorized distribution channels to ensure authenticity and adherence to RoHS compliance standards. Cross-reference the manufacturer's official documentation to validate the exact reel quantity associated with this specific suffix before finalizing procurement orders.

Selection Notes

Select the LD6806F/36P,115 when a fixed 3.6 V rail is required with minimal footprint constraints using the SOT753 package. This variant is specifically chosen over high-ohmic versions due to its internal pull-down transistor, which actively discharges the output node upon disablement. Ensure the application maintains an input voltage between 2.3 V and 5.5 V and requires a maximum load current not exceeding 200 mA for stable regulation.

Part Context

This component belongs to the LD6806 series of ultra low-dropout regulators designed for miniaturized applications. The 'F' designation indicates the use of the SOT886 or SOT753 plastic package family, while the '/36' specifies the fixed 3.6 V output voltage option. The 'P' suffix identifies the low-ohmic output stage variant, distinguishing it from the high-ohmic 'H' version. Manufactured using monolithic silicon technology, these devices are optimized for space-constrained portable electronics.

Replacement Considerations

Direct substitutes within the same series include other LD6806 variants sharing the SOT753 package and low-ohmic output characteristic, such as LD6806TD/xxxP. When replacing, verify that the alternative part number matches the required output voltage and package dimensions. Ensure the substitute maintains the same pinout configuration and electrical specifications regarding dropout voltage and current ratings.