LM120K-15/883 National Semiconductor, LM120K-15/883 Datasheet - Page 9

• Manufacturer Part Number: LM120K-15/883
• Description: Standard Regulator Neg -15V 1.5A 3-Pin (2+Tab) TO-3 Tray
• Manufacturer: National Semiconductor
• Type: Linearr

Specifications of LM120K-15/883

• Package: 3TO-3
• Function: Standard
• Number Of Outputs: 1
• Output Voltage: -15 V
• Maximum Output Current: 1.5 A
• Output Type: Fixed
• Operating Temperature: -55 to 125 °C
• Polarity: Negative

Typical Applications
High Stability 1 Amp Regulator
20150106
Lead and line regulation — 0.01% temperature stability — 0.2%
†Determines Zener current.
††Solid tantalum.
An LM120-12 or LM120-15 may be used to permit higher input voltages, but the regulated output voltage must be at least −15V when using the LM120-12 and
−18V for the LM120-15.
**Select resistors to set output voltage. 2 ppm/°C tracking suggested.
Wide Range Tracking Regulator
Current Source
20150108
20150107
* Resistor tolerance of R1 and R2 determine matching of (+) and (−) inputs.
**Necessary only if raw supply capacitors are more than 3 from regulators
An LM3086N array may substitute for Q1, D1 and D2 for better stability and
tracking. In the array diode transistors Q5 and Q4 (in parallel) make up D2;
similarly, Q1 and Q2 become D1 and Q3 replaces the 2N2222.
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