LD29150DT33R

Overview

The LD29150DT33R is a high-current, low-dropout voltage regulator capable of providing up to 1.5A of output current with a fixed 3.3V output. It is designed for high-efficiency power conversion in digital systems where a low input-to-output voltage differential is required. The device includes integrated protection features such as internal current limiting and thermal shutdown to ensure reliability under fault conditions.

Why Choose This Part

This regulator offers a very low dropout voltage and a high output current capability of 1.5A in a compact DPAK surface-mount package. It features a high PSRR of 67dB at 120Hz, making it effective at filtering ripple from rectified AC or switching stages. Additionally, the logic-controlled electronic shutdown mode reduces the quiescent current to 180uA, facilitating power savings in standby modes.

Applications

Getting Started

When designing with the LD29150DT33R, ensure a minimum 10uF capacitor with low ESR is placed on the output for stability. The DPAK package requires adequate copper area on the PCB for heat dissipation, as the thermal resistance is highly dependent on the mounting configuration. Verify that the input voltage remains between 4.3V and 13V to maintain proper regulation and avoid exceeding the absolute maximum ratings.