l7818cd2t-tr STMicroelectronics, l7818cd2t-tr Datasheet - Page 38

• Manufacturer Part Number: l7818cd2t-tr
• Description: Positive Voltage Regulators
• Manufacturer: STMicroelectronics

Figure 37. Protection against input short-circuit with high capacitance loads
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1. Application with high capacitance loads and an output voltage greater than 6 volts need an external diode
(see
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.
Figure 32 on page
36) to protect the device against input short circuit. In this case the input voltage