L7805C

Manufacturer Part NumberL7805C
DescriptionPositive voltage regulators
ManufacturerSTMicroelectronics
L7805C datasheet
 


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Application information
Figure 28. Protection against input short-circuit with high capacitance loads
Note:
Application with high capacitance loads and an output voltage greater than 6 volts need an
external diode (see
this case the input voltage falls rapidly while the output voltage decrease slowly. The
capacitance discharges by means of the base-emitter junction of the series pass transistor
in the regulator. If the energy is sufficiently high, the transistor may be destroyed. The
external diode by-passes the current from the IC to ground.
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Figure 23 on page
34) to protect the device against input short circuit. In
Doc ID 2143 Rev 26
L78xx, L78xxC, L78xxAB, L78xxAC