LM7905CT/NOPB National Semiconductor, LM7905CT/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM7905CT/NOPB
• Description: IC VOLT REG NEG 5V 1.5A TO220-3
• Manufacturer: National Semiconductor
• Type: Voltage Regulatorr

Specifications of LM7905CT/NOPB

• Regulator Topology: Negative Fixed
• Voltage - Output: -5V
• Voltage - Input: -10 ~ -25 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 mA
• Package Type: TO-220
• Regulation, Line: 8 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: -25 V
• Voltage, Noise: 125 μV
• Voltage, Output: -5 V
• Voltage, Supply, Rejection Ratio: 66 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: *LM7905CT; *LM7905CT/NOPB; LM7905; LM7905CTNS; UA7905; UA7905CT; UA7905CU

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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