L78M05CS 데이터 시트보기 (PDF) - STMicroelectronics

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L78M05CS

POSITIVE VOLTAGE REGULATORS

STMicroelectronics 

Figure 22 : Reducing Power Dissipation with

Dropping Resistor.

L78M00

Figure 23 : Power AM Modulator (unity voltage

gain, Io ≤ 0.5).

R = V i(min) − V XX − V DROP(max)

I O(max) + I d(max)

Figure 24 : Adjustable Output Voltage with Tem-

perature Compensation.

NOTE: The circuit performs well up to 100KHz

VO

=

V

XX

(1

+

R

R

2)

1

+

V

BE

NOTE: Q2 is connected as a diode in order to compensate the

variation of the Q1 VBE with the temperature. C allows a slow rise-

time of the Vo

13/19

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