LM317AMDT Rectifier Diode 3- Terminal Adjustable Regulator Silicon Planar Zener Diodes

Features

►Guaranteed 1% output voltage tolerance (LM317A)

► Guaranteed max. 0.01%/V line regulation (LM317A)

► Guaranteed max. 0.3% load regulation (LM117)

► Guaranteed 1.5A output current

► Adjustable output down to 1.2V

► Current limit constant with temperature

► P+ Product Enhancement tested

► 80 dB ripple rejection

► Output is short-circuit protected

General Description

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. Also, the LM117 is packaged in standard transistor packages which are easily mounted and handled.

In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC’s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Connection Diagrams

STOCK LIST

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