MC78BC50NTR 데이터 시트보기 (PDF) - ON Semiconductor

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MC78BC50NTR

Micropower Voltage Regulator

ON Semiconductor 

MC78BC00 Series

External PNP Transistor

The external pin of this IC is protected by a current limit

circuit from the destruction caused by excess current. The

R2 resistor shown in Figure 10 is used for the protection of

the external transistor, although this circuit can operate

without the resistor. Resistor R2 should be determined via

the input voltage, output voltage, output current,

temperature and the HFE of the external pass transistor.

MJD32C

In

Out

R1

10 mF

.033 mF

R2

4 Ext

3 VO

MC78BCXXNTR

Figure 10. External PNP

MJD32C

10 k

.033 mF

4

Ext

In

VDD

2

VO

3

10 mF

MC78BC50NTR

Gnd

CE

1

5

Figure 11. Typical Application

Out

5.0 V

10 mF

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