STMicroelectronics LD1085V33 Voltage Regulator

The LD1085V33 from STMicroelectronics is a robust, high-performance low-dropout voltage regulator designed to provide a stable 3.3V output. This regulator is capable of delivering up to 3A of continuous output current with a typical dropout voltage of just 1.3V at maximum output, making it an excellent choice for demanding applications that require a reliable power supply.

One of the key features of the LD1085V33 is its adjustable output voltage, which can be set from 1.25V to a maximum of 13.8V with the use of external resistors. However, this particular model is pre-configured to output a fixed 3.3V, simplifying the design for engineers who need a standard voltage level.

The device incorporates several protection features that ensure both the safety of the regulator and the powered device. These include thermal shutdown, which prevents the regulator from overheating, and current limiting, which protects the device from damage due to excessive load conditions. Additionally, the LD1085V33 has a low ground current characteristic, which improves the efficiency of the system and reduces power loss.

The LD1085V33 comes in a TO-220 package, which is widely used and favored for its ease of mounting and thermal efficiency. This package allows the device to dissipate heat effectively, thereby maintaining stability and reliability even under high load conditions.

Ideal for a wide range of applications, including on-board post-regulation, microprocessor supplies, and battery-powered devices, the LD1085V33 is a versatile component that offers a combination of flexibility, efficiency, and reliability. STMicroelectronics' commitment to quality ensures that this voltage regulator is a dependable choice for designers looking to create stable and robust power supply circuits.

For detailed specifications, application notes, and further information, designers and engineers are encouraged to consult the datasheet and support documentation available from STMicroelectronics.