LM317LZ/NOPB Voltage regulator, adjustable, 40 Vin , 100mA , 1.2 ... 37 V, TO

100-mA, 40-V, high-PSRR, adjustable linear voltage regulator

Description The LM317L-N is an adjustable positive voltage regulator capable of supplying 100 mA overa 1.2-V to 37-V output range. The LM317L-N is easy to use and requires only two external resistorsto set the output voltage. Both line and load regulation are better than standard fixed regulators.The LM317L-N is available packaged in a standard, easy-to-use TO-92 transistor package. The LM317L-N offers full overload protection. Included on the chip are current limit,thermal overload protection, and safe area protection. Normally, no capacitors are required unlessthe device is situated more than 6 inches from the input filter capacitors, in which case an inputbypass is required. The LM317L-N uses floating topology and sees only theinput to-output differential voltage, therefore supplies of several hundred volts can be regulated,provided the maximum input-to-output differential is not exceeded. The device makes a simpleadjustable switching regulator, a programmable output regulator, or by connecting a fixed resistorbetween the adjustment and output, the LM317L-N can be used as a precision currentregulator. The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOICpackage, and 6-pin DSBGA package. The LM317L-N is rated for operation over a -40°C to 125°Crange.

Features - Adjustable Output Down to 1.2 V - 100-mA Output Current - Capable of Handling up to 40V VIN - Line Regulation Typically 0.01% /V - Load Regulation Typically 0.1% /A - No Output Capacitor Required (†) - Current Limit Constant With Temperature - Eliminates the Need to Stock Many Voltages - Standard 3-Lead Transistor Package - 80-dB Ripple Rejection - Available in 3-Pin TO-92, 8-Pin SOIC, or 6-pin DSBGA Packages - Output is Short-Circuit Protected