LD1085D2T33R
Overview
The LD1085D2T33R is a low-dropout linear voltage regulator designed to provide a fixed 3.3V output with a high current capacity of up to 3A. It operates with an input voltage up to 30V and features internal power and thermal limiting to protect the device during fault conditions. This regulator is housed in a surface-mount D2PAK package, making it suitable for high-power density applications requiring robust thermal management.
Why Choose This Part
The LD1085D2T33R offers a high output current of 3A and a high Power Supply Rejection Ratio (PSRR) of 72dB at 120Hz, ensuring clean power delivery. Its integrated over-current and over-temperature protection features simplify circuit design by removing the need for external protection components. The D2PAK package provides excellent thermal dissipation for high-current loads compared to smaller SOT packages.
Applications
Key Specifications
Getting Started
When designing with this LDO, ensure a minimum output capacitance is used as specified in the datasheet to maintain loop stability. Pay close attention to the PCB copper area surrounding the D2PAK tab, as this serves as the primary heat sink for the device. For prototyping, the pinout is compatible with standard adjustable regulators, allowing for easy drop-in replacement in existing 3-pin footprints.
