1. FLEXIBLE VOLTAGE REGULATION: Because the LM317 is a internal linear voltage regulator, so relatively consumption. When the input voltage difference is large and the output current is large, pay attention to the power consumption is not too large. Generally, the power consumption after the heat sink is not more than 20W. Therefore, when the pressure difference is large, it is recommended to shift the pressure
2. WIDE APPLICATION: LM317 is a three terminal adjustable positive voltage regulator integrated circuit of for United States National Semiconductor Corporation. The major IC manufacturers in China and the world have similar products available for selection, which is an extremely widely used series integrated voltage regulator
3. FUNCTIONS: The output voltage range of LM317 is l.25V to 27V, very simple to use. Only two external resistors are needed to set the output voltage. In addition, the linear adjustment rate and load adjustment rate are better than the standard fixed voltage regulator, built in overload , safety zone and other circuits
4. ADEQUATE CAPACITANCE: An external capacitor is not required for the LM317 regulator unless the connection between the input filter capacitor and the LM317 input is more than 6 inches(about 15cm). Transient responses can be changed using output capacitors. A much higher ripple rejection ratio can be obtained by using the filter capacitor at the regulator than the standard three terminal regulator
5. EXTENDED FUNCTIONS: The LM317 has a number of special uses. For example, suspending the regulator to a higher voltage can be used to adjust voltages up to hundreds of volts, as long as the input output pressure difference does not exceed the limit of LM317. Of course, to avoid short circuit output end. The regulator can also be connected to a programmable voltage to achieve programmable power output. The input must be at least 2V higher than the output,