LM7912CT/NOPB National Semiconductor, LM7912CT/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM7912CT/NOPB
• Description: IC VOLT REG NEG 12V 1.5A TO220-3
• Manufacturer: National Semiconductor
• Type: Voltage Regulatorr

Specifications of LM7912CT/NOPB

• Regulator Topology: Negative Fixed
• Voltage - Output: -12V
• Voltage - Input: -19 ~ -35 V
• Voltage - Dropout (typical): 1.1V @ 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)
• Current, Output: 1.5 A
• Current, Supply: 1.5 mA
• Package Type: TO-220
• Regulation, Line: 5 mV
• Regulation, Load: 15 mV
• Regulator Type: Negative Voltage Out
• Resistance, Thermal, Junction To Case: 3 °C/W
• Temperature, Operating, Range: 0 to +125 °C
• Voltage, Dropout: 1.1 V
• Voltage, Input: -35 V
• Voltage, Noise: 300 μV
• Voltage, Output: -12 V
• Voltage, Supply, Rejection Ratio: 70 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device
• Other names: *LM7912CT; *LM7912CT/NOPB; LM7912; LM7912CT; UA7912; UA7912CT; UA7912CU

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Typical Applications
Load Regulation at I
Output Ripple, C
Temperature Stability
Output Noise 10Hz
*Resistor tolerance of R4 and R5 determine matching of (+) and (−) outputs.
**Necessary only if raw supply filter capacitors are more than 3" from regulators.
IN
= 3000µF, I
L
f
= 1A
10kHz
L
= 1A
(Continued)
±
15V, 1 Amp Tracking Regulators
(-15)
40mV
100 µVms
50mV
150 µVms
Dual Trimmed Supply
6
(+15)
2mV
100 µVms
50mV
150 µVms
DS007340-4
DS007340-1