LM340T-12/NOPB National Semiconductor, LM340T-12/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM340T-12/NOPB
• Description: IC REGULATOR POSIT 12V TO220-3
• Manufacturer: National Semiconductor
• Type: Voltage Regulatorr

Specifications of LM340T-12/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 12V
• Voltage - Input: 14.6 ~ 35 V
• Voltage - Dropout (typical): 2V @ 1A
• Number Of Regulators: 1
• Current - Output: 1.5A
• Current - Limit (min): 2.4A
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Current, Output: 1 A
• Current, Supply: 6 mA
• Package Type: TO-220
• Regulation, Line: 4 mV
• Regulation, Load: 12 mV
• Regulator Type: Positive Voltage Out
• Resistance, Thermal, Junction To Case: 4 °C/W
• Temperature, Operating, Range: 0 to +125 °C
• Voltage, Dropout: 2 V
• Voltage, Input: 19 V
• Voltage, Noise: 75 μV
• Voltage, Output: 12 V
• Voltage, Supply, Rejection Ratio: 72 dB
• Primary Input Voltage: 27V
• Output Voltage Fixed: 12V
• No. Of Outputs: 1
• No. Of Pins: 3
• Output Current: 1A
• Operating Temperature Range: 0°C To +125°C
• Msl: MSL 1 - Unlimited
• Current Rating: 1A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM340T-12; *LM340T-12/NOPB; LM340T-12; LM7812; LM7812CT; LM7812T; UA7812; UA7812CT; UA7812CU

V
∆V
∆V
V
I
∆I
V
∆V
V
R
I
I
∆V
Symbol
Q
OS
PK
O
O
N
DO
LM7808C
Electrical Characteristics
0˚C ≤ T
O
Note 6: All characteristics are measured with a 0.22 µF capacitor from input to ground and a 0.1 µF capacitor from output to ground. All characteristics except noise
voltage and ripple rejection ratio are measured using pulse techniques (t
must be taken into account separately.
Q
O
O
I
O
/∆V
/∆T
O
J
≤ +150˚C, V
Output Voltage
Line Regulation
Load Regulation
Output Voltage
Quiescent Current
Quiescent
Current Change
Noise
Ripple Rejection
Dropout Voltage
Output Resistance
Output Short Circuit Current
Peak Output Current
Average Temperature
Coefficient of Output Voltage
Parameter
I
= 14V, I
O
With Line
With Load
= 500 mA, C
T
T
T
11.5V ≤ V
T
11.5V ≤ V
5.0 mA ≤ I
T
f = 120 Hz, I
I
f = 1.0 kHz
T
T
I
O
O
I
J
J
J
J
A
J
J
= 0.33 µF, C
= 1.0A, T
= 5.0 mA
= 25˚C
= 25˚C
= 25˚C
= 25˚C
= 25˚C, V
= 25˚C
= 25˚C, 10 Hz ≤ f ≤ 100 kHz
I
I
O
w
≤ 23V, 5.0 mA ≤ I
≤ 25V
J
≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature
O
≤ 1.0A
I
= 25˚C
= 35V
= 350 mA, T
O
Conditions (Note 6)
= 0.1 µF, unless otherwise specified
7
J
= 25˚C
O
10.5V ≤ V
11.0V ≤ V
5.0 mA ≤ I
250 mA ≤ I
mA
≤ 1.0A, P ≤ 15W
I
I
O
O
≤ 25V
≤ 17V
≤ 1.5A
≤ 750
Min
7.7
7.6
56
LM7808C
0.45
Typ
8.0
6.0
2.0
4.0
4.3
2.0
2.2
0.8
12
52
72
16
Max
160
160
8.3
8.4
8.0
1.0
0.5
80
80
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mV/˚C
Units
mΩ
mV
mV
mA
mA
µV
dB
V
V
V
A
A