LD29300D2T33R

Overview

The LD29300D2T33R is a fixed-output low-dropout voltage regulator from STMicroelectronics, providing a nominal output of 3.3V with ±1% tolerance at 25°C. It supports an output current up to 3A and operates within an input voltage range of 4.3V to 13V. The device features a typical dropout voltage of 0.4V at full load and includes internal thermal and current limiting. It utilizes the D2PAK surface-mount package.

Feature Summary

• Guarantees high output current capability up to 3A for demanding loads
• Features very low dropout voltage characteristics for efficiency
• Includes internal protection against overcurrent and thermal overload

Applications

• Power supply switching post regulation
• Series power supply for monitors
• Computer systems
• Battery-powered systems

Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging availability. Confirm the D2PAK package type matches the target PCB footprint. Ensure the fixed 3.3V output aligns with system requirements. Check for any RoHS compliance documentation if required by manufacturing standards.

Selection Notes

Select this component when a stable 3.3V rail is needed with high current capacity. The low dropout characteristic makes it suitable for applications where the input voltage is close to the desired output level. Consider the thermal resistance of the D2PAK package for heat dissipation in enclosed designs.

Part Context

This part belongs to the LD29300 series of 3A very low drop voltage regulators. The series offers various fixed output voltages and adjustable versions across multiple packages including TO-220, D2PAK, and P2PAK. The D2T33 variant specifically denotes the D2PAK package with a 3.3V fixed output.

Replacement Considerations

Compatible substitutes include other LD29300 variants such as LD29300D2M33 or LD29300P2T33, provided the package and pinout are compatible.