L78S09CT Просмотр технического описания (PDF) - STMicroelectronics

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L78S09CT

2A POSITIVE VOLTAGE REGULATORS

STMicroelectronics 

Figure 15 : Circuit for Increasing Output Voltage.

L78S00 SERIES

Figure 16 : Adjustable Output Regulator

(7 to 30V).

IR1 ≥ 5 Id

V0 = VXX (1 +

R2

R1

) + Id R2

Figure 17 : 0.5 to 10V Regulator.

Figure 18 : High Current Voltage Regulator.

R4

VO = VXX

R1

Figure 19 : High Output Current with Short Circuit

Protection.

R1 =

VBEQ1

IREQ –

IQ1

βQ1

IO = IREG + Q1 [IREG –

VBEQ1

R1

]

Figure 20 : Tracking Voltage Regulator.

RSC = VBEQ2

ISC

15/21

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