LM340T-12/NOPB National Semiconductor, LM340T-12/NOPB Datasheet - Page 8

• 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

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Typical Performance Characteristics
Maximum Average Power Dissipation
Maximum Power Dissipation (TO-263)
Ripple Rejection
(See Note 2)
00778124
00778122
00778126
8
Note: Shaded area refers to LM340A/LM340, LM7805C, LM7812C and
LM7815C.
Output Voltage (Normalized to 1V at T
Maximum Average Power Dissipation
Ripple Rejection
J
00778127
00778123
00778125
= 25˚C)