STMicroelectronics

LD1085DT18R

LD1085DT18R Description

The LD1085DT18R is a fixed-output linear regulator designed for high-performance power management applications. Manufactured by STMicroelectronics, this device offers a robust solution for providing a stable 1.8V output at a maximum current of 3A. The regulator is housed in a DPAK package, which is ideal for surface-mount applications, ensuring efficient heat dissipation and compact design. Despite its obsolescence status, the LD1085DT18R remains a reliable choice for applications requiring a fixed positive output voltage.

LD1085DT18R Features

• Output Type: Fixed at 1.8V, ensuring a stable and consistent power supply.
• Input Voltage Range: Capable of handling a maximum input voltage of 30V, providing flexibility in power source selection.
• Output Current: Delivers up to 3A, suitable for demanding applications requiring high current.
• Dropout Voltage: A maximum dropout voltage of 1.5V at 3A ensures efficient operation even under heavy load conditions.
• Low Quiescent Current: Only 10mA, minimizing power consumption during standby.
• High PSRR: 72dB at 120Hz, ensuring excellent noise rejection and stable output.
• Protection Features: Over-current and over-temperature protection safeguard the device and connected circuits from damage.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for a wide range of environmental conditions.
• Package Type: DPAK, ideal for surface-mount applications and efficient heat dissipation.
• Compliance: REACH unaffected, ensuring compliance with environmental regulations.

LD1085DT18R Applications

The LD1085DT18R is well-suited for a variety of applications where a stable and reliable power supply is critical. Its fixed 1.8V output and high current capability make it ideal for:

• Embedded Systems: Providing a stable power source for microcontrollers and other low-voltage components.
• Consumer Electronics: Ensuring reliable power delivery in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Powering sensors, actuators, and control systems in industrial environments.
• Telecommunications: Supplying power to communication modules and base stations.
• Automotive Electronics: Suitable for powering various electronic components in vehicles, given its robustness and protection features.

Conclusion of LD1085DT18R

The LD1085DT18R from STMicroelectronics is a versatile and reliable linear regulator offering a fixed 1.8V output at up to 3A. Its robust design, including over-current and over-temperature protection, ensures long-term reliability and safety. The DPAK package and surface-mount compatibility make it suitable for a wide range of applications, from consumer electronics to industrial systems. Although marked as obsolete, the LD1085DT18R remains a valuable component for applications requiring a stable and efficient power supply.