3-ampere Adjustable Negative Regulators

The LM133 LM333 are adjustable 3-terminal negative volt- age Regulators capable of supplying in excess of 3.0A over an output voltage range of 1.2V to 32V. These Regulators are exceptionally easy to apply, requiring only 2 external re- sistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been opti- mized for excellent regulation and low thermal transients. Further, the LM133 series features internal current limiting, thermal shutdown and safe-area compensation, making them substantially immune to failure from overloads. The LM133 LM333 serve a wide variety of applications in- cluding local on-card regulation, programmable-output volt- age regulation or precision current regulation. The LM133 LM333 are ideal complements to the LM150 LM350 adjustable positive Regulators By National Semiconductor Corporation