L79XXC 데이터 시트보기 (PDF) - STMicroelectronics

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L79XXC

Negative voltage regulators

STMicroelectronics 

L79xxC

6

Application information

Figure 4. Fixed output regulator

Application information

1. To specify an output voltage, substitute voltage value for "XX".

2. Required for stability. For value given, capacitor must be solid tantalum. If aluminium electrolytic are used,

at least ten times value should be selected. C1 is required if regulator is located an appreciable distance

from power supply filter.

3. To improve transient response. If large capacitors are used, a high current diode from input to output

(1N4001 or similar) should be introduced to protect the device from momentary input short circuit.

Figure 5. Split power supply (± 15 V - 1 A)

(*) Against potential latch-up problems.

Doc ID 2149 Rev 21

11/24

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