Positive High Voltage High Current Regulator:

Positive High Voltage High Current Regulator – For this type, output voltage from +7V to +37V and load current I_L > 150 mA. For this a external transistor Q₁ is connected, as shown in the Fig. 2.115.

For this different expressions are similar to basic high voltage regulator and reproduced for the convenience.

While the power dissipation of transistor Q₁ and the IC is given by the same expressions as given by the equations (5) and (6).