LM7912CT/NOPB National Semiconductor, LM7912CT/NOPB Datasheet - Page 4
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LM7912CT/NOPB
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
*LM7912CT/NOPB
LM7912
LM7912CT
UA7912
UA7912CT
UA7912CU
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Typical Applications
Bypass capacitors are necessary for stable operation of the
LM79XX series of regulators over the input voltage and
output current ranges. Output bypass capacitors will improve
the transient response by the regulator.
The bypass capacitors, (2.2µF on the input, 1.0µF on the
output) should be ceramic or solid tantalum which have good
Load and line regulation
*Select resistors to set output voltage. 2 ppm/˚C tracking suggested
†
††
Determine Zener current
Solid tantalum
<
0.01% temperature stability
0.2%
High Stability 1 Amp Regulator
Current Source
4
high frequency characteristics. If aluminum electrolytics are
used, their values should be 10µF or larger. The bypass
capacitors should be mounted with the shortest leads, and if
possible, directly across the regulator terminals.
DS007340-7
DS007340-5