LD29080PT18R

Overview

The LD29080PT18R is a fixed-output low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a regulated output of 1.8 V with a maximum continuous load current capability of 800 mA. The device operates within an input voltage range up to 13 V and features a typical dropout voltage of 400 mV at full load. Internal protection mechanisms include thermal limiting and current limiting. The component is housed in a PPAK surface-mount package, suitable for applications requiring high accuracy and low ground current.

Feature Summary

• Provides stable 1.8 V output with ±1% accuracy at 25 °C
• Features ultra-low dropout voltage for efficient power management
• Includes internal thermal and current limit protections
• Supports logic-controlled electronic shutdown

Applications

• Post-regulation for switching power supplies
• Battery-powered systems requiring extended runtime
• Series power supplies for monitors and TVs
• Computer system peripheral power regulation

Procurement Notes

Verify the specific suffix 'PT18R' against the manufacturer's official datasheet to confirm the 1.8 V fixed output and PPAK package configuration. Ensure compatibility with the target PCB footprint and thermal requirements before procurement. Confirm RoHS compliance status through the latest product documentation.

Selection Notes

Select this component when a precise 1.8 V rail is required with up to 800 mA load capacity. The PPAK package offers a compact solution for space-constrained designs. Consider the 13 V maximum input rating and thermal dissipation capabilities relative to the ambient operating temperature and board layout.

Part Context

This part belongs to the LD29080 series of medium-current, high-accuracy low-dropout regulators from STMicroelectronics. The series is designed for applications where small dropout voltage and low ground current are critical attributes. It serves as a reliable linear regulation solution for various consumer and industrial electronics.

Replacement Considerations

Consult the official LD29080 datasheet for verified pin-compatible or functionally equivalent alternatives. Cross-reference specifications such as output voltage tolerance, package dimensions, and thermal performance to ensure seamless integration without circuit redesign.