Abstract: The invention relates to a current regulator having the following features: a first semiconductor body (1; 1?) having a first and second terminal contact (11, 12), a transistor (T) having a control terminal and a load path, which is integrated in the semiconductor body (1; 1?) and the load path of which runs between the terminal contacts (11, 12) of the semiconductor body, a current measuring resistor (22), which is at least partly formed by a section of the load path of the transistor, an evaluation and drive circuit (3), which is connected to the current measuring resistor (22) and which is designed to drive the transistor depending on a voltage across the measuring resistor (22).

Abstract: A regulating system comprises an input terminal for applying an input voltage, and an output terminal for providing an output voltage. A semiconductor element is connected between the input terminal and the output terminal and is operable to regulate the output voltage. A regulating signal generation circuit generates the regulating signal and comprises a current mirror arrangement including a first and second current mirror path, wherein a controlled current source is connected in series to the first current mirror path. The controlled current source induces a first current dependent on one of the output signals in the first current mirror path. A second current through the second current mirror path is dependent on the first current. A splitter circuit conducts the second current to the output terminal or to a reference potential, dependent on a load path voltage applied over the load path of the semiconductor element.

Abstract: A regulating system comprising: an input terminal (K10) for applying an input voltage (Vin), an output terminal (K20) for providing an output voltage (Vout) and an output current (Iout), a semiconductor element (Q1) regulating the output voltage (Vout), which element has a load path which is connected between the input terminal (K1) and the output terminal (K2), and a control input to which a regulating signal (Ib1) is applied, a regulating signal generation circuit to generate the regulating signal (Ib1), which circuit has a current mirror arrangement (Q2, Q3) including a first and second current mirror path, wherein a controlled current source (Q4) is connected in series to the first current mirror path, which source induces a first current dependent on one of the output signals (Vout) in the first current mirror path, and wherein a second current (I2) through the second current mirror path is dependent on the first current (I1), a splitter circuit (20) which conducts the second current (I2) to the o