LM350K

The LM350K is an adjustable 3-terminal positive voltage regulator from LT, designed to supply currents in excess of 3A. It provides an output voltage range from 1.2V to 33V, requiring only two external resistors for setting the output voltage. This regulator series offers robust overload protection, including current limiting, thermal overload protection, and safe area protection, all integrated onto the chip.

The LM350K is packaged in a standard steel TO-3 package, making it easy to mount and handle. It is suitable for applications requiring adjustable power supplies, constant current regulation, and battery chargers. The device ensures good line and load regulation, comparable to discrete designs, and features a guaranteed thermal regulation.

Key electrical characteristics include a guaranteed 3A output current and an adjustable output down to 1.2V. The LM350 variant operates within a temperature range of 0°C to 125°C. The device also offers features like 86 dB ripple rejection and short-circuit protection.

For optimal performance, an input bypass capacitor may be needed if the device is situated more than 6 inches from input filter capacitors. An output capacitor can be added to improve transient response, and bypassing the adjustment pin enhances ripple rejection.