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August 1999 LM117/LM317A/LM317 3-Terminal Adjustable Regulator age, supplies of several hundred volts can be regulated as General Description long as the maximum input to output differential is not ex- The LM117 series of adjustable 3-terminal positive voltage ceeded, i.e., avoid short-circuiting the output. regulators is capable of supplying in excess of 1.5A over a Also, it makes an especially simple adjustable switching 1.2V to 37V output range. They are exceptionally easy to regulator, a programmable output regulator, or by connecting use and require only two external resistors to set the output a fixed resistor between the adjustment pin and output, the voltage. Further, both line and load regulation are better than LM117 can be used as a precision current regulator. Su... See More ⇒