'Negative' related articles 1

  1. 2008/09/11 LM133-3-Ampere Adjustable Negative Regulators
General Description
The LM133/LM333 are adjustable 3-terminal negative voltage 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 resistors
to set the output voltage and 1 output capacitor for frequency compensation.
The circuit design has been optimized 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 including local on-card regulation, programmable-output voltage regulation or precision current regulation.
The LM133/ LM333 are ideal complements to the LM150/LM350 adjustable positive regulators.

*Output voltage adjustable from −1.2V to −32V
*3.0A output current guaranteed, −55°C to +150°C
*Line regulatio*typically 0.01%/V
*Load regulatio*typically 0.2%
*Excellent rejectio*of thermal transients
*50 ppm/°C temperature coefficient
*Temperature-independent current limit
*Internal thermal overload protection
*P+ Product Enhancement tested
*Standard 3-lead transistor package
*Output is short circuit protected


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