L7812CV STMicroelectronics, L7812CV Datasheet - Page 4

• Manufacturer Part Number: L7812CV
• Description: IC REGULATOR POS 12V TO-220
• Manufacturer: STMicroelectronics
• Type: Voltage Regulatorr

Specifications of L7812CV

• 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 (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
• Voltage Regulator Type: Linear
• Topology: Standard
• Regulator Output Type: Fixed
• Polarity Type: Positive
• Input Voltage (max): 35V
• Operating Temp Range: 0C to 125C
• Operating Temperature Classification: Commercial
• Dropout Voltage@current (typ): 2@1A
• Pin Count: 3 +Tab
• Mounting: Through Hole
• Quiescent Current (max): 8mA
• Dc: 99+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-1452-5

List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Figure 44.
Figure 45.
Figure 46.
Figure 47.
Figure 48.
Figure 49.
4/56
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
DC parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ripple rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fixed output regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Current regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Adjustable output regulator (7 to 30 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
0.5 to 10 V regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
High current voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
High output current with short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Tracking voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Split power supply (± 15 V - 1 A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Negative output voltage circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
High input voltage circuit (configuration 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
High input voltage circuit (configuration 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
High output voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
High input and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Reducing power dissipation with dropping resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Remote shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Power AM modulator (unity voltage gain, I
Adjustable output voltage with temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . 35
Light controllers (V
Protection against input short-circuit with high capacitance loads . . . . . . . . . . . . . . . . . . . 36
Dropout voltage vs. junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Peak output current vs. input/output differential voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Output voltage vs. junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Output impedance vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Quiescent current vs. junction temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Load transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Line transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Quiescent current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Drawing dimension TO-220 (type STD-ST Dual Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Drawing dimension TO-220 (type STD-ST Single Gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 41
Drawing dimension tube for TO-220 Dual Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Drawing dimension tube for TO-220 Single Gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 42
Drawing dimension TO-220FP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Drawing dimension TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Drawing dimension DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Drawing dimension tape and reel for DPAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Drawing dimension D²PAK (type STD-ST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Drawing dimension D²PAK (type WOOSEOK-Subcon.). . . . . . . . . . . . . . . . . . . . . . . . . . . 50
D²PAK footprint recommended data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Drawing dimension tape and reel for D²PAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
O(min)
= V
XX
Doc ID 2143 Rev 23
+ V
BE
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
O
≤ 0.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
L78xx, L78xxC, L78xxAB, L78xxAC