L7812CP STMicroelectronics, L7812CP Datasheet - Page 36
![IC POSITIVE REG 12V TO-220FP](/photos/5/30/53057/to-220_fp_sml.jpg)
L7812CP
Manufacturer Part Number
L7812CP
Description
IC POSITIVE REG 12V TO-220FP
Manufacturer
STMicroelectronics
Type
Voltage Regulatorr
Specifications of L7812CP
Regulator Topology
Positive Fixed
Voltage - Output
12V
Voltage - Input
Up to 35V
Voltage - Dropout (typical)
2V @ 1A
Number Of Regulators
1
Current - Output
1.5A
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3 Full Pack (Straight Leads)
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Output Voltage
12 V
Output Current
1.5 A
Line Regulation
240 mV
Load Regulation
240 mV
Dropout Voltage (max)
2 V
Input Voltage Max
35 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Current, Output
1.5 A
Current, Supply
8 mA
Package Type
TO-220
Regulation, Line
240 mV
Regulation, Load
120 mV
Regulator Type
Positive Voltage Out
Resistance, Thermal, Junction To Case
5 °C/W
Temperature, Operating, Range
0 to +150 °C
Voltage, Dropout
2 V
Voltage, Input
19 V
Voltage, Noise
75 μV/V
Voltage, Output
12 V
Voltage, Supply, Rejection Ratio
55 dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-1451-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L7812CP
Manufacturer:
ST
Quantity:
20 000
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 23
34) to protect the device against input short circuit. In
L78xx, L78xxC, L78xxAB, L78xxAC