STMicroelectronics

LD1085D2T-R

LD1085D2T-R Description

The LD1085D2T-R from STMicroelectronics is a high-performance, 3A adjustable positive linear voltage regulator in a D2PAK (TO-263) surface-mount package. Designed for demanding applications, it supports an input voltage up to 30V and delivers an adjustable output range of 1.25V to 28.5V, making it highly versatile for various power supply designs. With a low dropout voltage of 1.5V at 3A, it ensures efficient operation even with minimal headroom. The device boasts a 72dB PSRR (120Hz), significantly reducing noise in sensitive circuits, and features over-current and over-temperature protection for enhanced reliability. Its ROHS3 compliance and REACH unaffected status make it suitable for environmentally conscious designs.

LD1085D2T-R Features

• High Current Output: Delivers 3A continuous current, ideal for power-hungry applications.
• Wide Input/Output Range: Supports 30V max input and 1.25V–28.5V adjustable output.
• Low Dropout Voltage: 1.5V dropout at 3A minimizes power dissipation.
• Excellent Noise Rejection: 72dB PSRR (120Hz) ensures clean output in noisy environments.
• Robust Protection: Includes over-current and over-temperature safeguards.
• Compact & Reliable: D2PAK package offers superior thermal performance for high-current operation.
• Low Quiescent Current: 10mA Iq balances efficiency and performance.

LD1085D2T-R Applications

This regulator excels in applications requiring stable, high-current, low-noise power delivery, such as:

• Industrial Power Supplies: For PLCs, motor controllers, and automation systems.
• Telecom & Networking Equipment: Base stations, routers, and switches.
• Automotive Electronics: Infotainment systems and onboard power management.
• Consumer Electronics: High-end audio amplifiers and set-top boxes.
• Embedded Systems: Reliable voltage regulation for microcontrollers and FPGAs.

Conclusion of LD1085D2T-R

The LD1085D2T-R stands out as a high-efficiency, robust linear regulator with superior current-handling capabilities and noise immunity. Its wide adjustability, low dropout, and integrated protections make it a top choice for engineers designing high-reliability power systems. Whether for industrial, automotive, or consumer applications, this regulator delivers performance, durability, and flexibility in a compact package.