L200 Voltage Regulator Circuits: Build Your Power Solutions

Description

Two distinct stabilization circuits are presented here, utilizing the IC L200 from SGS-Thomson as a voltage and current regulator. Circuit Figure 1 facilitates output voltage adjustment through the RV1 potentiometer. Conversely, Figure 2 allows for both output voltage and current regulation via the TR2 and TR1 potentiometers. Detailed specifications for the L200 IC can be found in the provided datasheet list. Further supplementary circuits incorporating the L200 are planned for inclusion shortly.

Integrated Circuits - L200

The IC L200, manufactured by SGS-Thomson, serves as a versatile regulator within these circuits. It's a three-terminal device – typically featuring an anode, cathode, and ground – designed to maintain a stable output voltage despite variations in input voltage or load current. Its operation relies on internal feedback mechanisms and carefully selected transistors to achieve this regulation. The L200 is widely employed in power supply applications due to its efficiency and robust performance. Datasheets provide comprehensive information regarding its electrical characteristics, thermal performance, and typical application circuits.

Circuit diagram

Fig. 1-High current regulator with NPN pass transistor

Fig. 2-Programmable voltage and current regulator