L78L09ACZ STMicroelectronics, L78L09ACZ Datasheet - Page 36

• Manufacturer Part Number: L78L09ACZ
• Description: IC REGULATOR POS 9V TO-92
• Manufacturer: STMicroelectronics
• Type: Voltage Regulatorr

Specifications of L78L09ACZ

• Regulator Topology: Positive Fixed
• Voltage - Output: 9V
• Voltage - Input: Up to 30V
• Voltage - Dropout (typical): 1.7V @ 40mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 9 V
• Output Current: 100 mA
• Line Regulation: 225 mV
• Load Regulation: 80 mV
• Dropout Voltage (max): 1.7 V
• Input Voltage Max: 30 V
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Voltage Regulation Accuracy: 5 %
• Current, Output: 40 mA
• Current, Supply: 5.5 mA
• Package Type: TO-92
• Regulation, Line: 225 mV
• Regulation, Load: 80 mV
• Regulator Type: Positive Voltage Out
• Temperature, Operating, Range: 0 to +150 °C
• Voltage, Dropout: 1.7 V
• Voltage, Input: 15 V
• Voltage, Noise: 70 μV
• Voltage, Output: 9 V
• Voltage, Supply, Rejection Ratio: 44 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-1012

Application information
Figure 28. Protection against input short-circuit with high capacitance loads
Note:
36/56
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.
Figure 23 on page
Doc ID 2143 Rev 22
34) to protect the device against input short circuit. In
L78xx, L78xxC, L78xxAB, L78xxAC