IC723 as a LOW voltage LOW current

IC723 as a LOW voltage LOW current :

R1 & R2 from a potential divider between Vref& Gnd.

·           The Voltage across R2 is connected to the Non – inverting terminal of the regulator IC

·           Gain of the internal error amplifier is large

      Therefore the Vo is connected to the Inverting terminal through R3 & RSC must also be equal to V_non-inv

R1 & R2 can be in the range of 1 KΩ to 10KΩ & value of R3 is given by

·           R_sc (current sensing resistor) is connected between C_s & C_L. The voltage drop across R_sc is proportional to the I_L.

·           This resistor supplies the output voltage in the range of 2 to 7 volts, but the load current can be higher than 150mA.

·           The current sourcing capacity is increased by including a transistor Q in the circuit