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L78S10C

2A POSITIVE VOLTAGE REGULATORS

STMicroelectronics 

Figure 27 : High Input and Output Voltage.

L78S00 SERIES

Figure 28 : Reducing Power Dissipation with

Dropping Resistor.

VO = VXX + VZ1

Figure 29 : Remote Shuntdown.

R = Vi(min) – VXX – VDROP(max)

IO(max) + Id(max)

Figure 30 : Power AM Modulator (unity voltage

gain, Io ≤ 1A).

Figure 31 : Adjustable Output Voltage with Tem-

perature Compensation.

Note : The circuit performs well up to 100KHz.

VO = VXX (1 +

R2

R1

) + VBE

Note :Q2 is connected as a diode in order to compensat e

the vari ati on of the Q1 VBE wi th the temper atur e. C

allows a slow rise-time of the VO

17/21

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