<P> LM317 can also be used to design various other circuits like 0 V to 30 V regulator circuit, adjustable regulator circuit with improved ripple rejection, precision current limiter circuit, tracking pre-regulator circuit, 1.25 V to 20 V regulator circuit with minimum program current, adjustable multiple on - card regulators with single control, battery charger circuit, 50 mA constant current battery charger circuit, slow turn - on 15 V regulator circuit, ac voltage regulator circuit, current - limited 6 V charger circuit, adjustable 4 V regulator circuit, high - current adjustable regulator circuit and many more . </P> <P> The LM317 is an adjustable analogue to the popular 78xx fixed regulators . Like the LM317, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed voltage above the adjustment pin (which in this case is labelled "ground"). </P> <P> The mechanism used is similar enough that a voltage divider can be used in the same way as with the LM317 and the output follows the same formula, using the regulator's fixed voltage for V (e.g. 5 V for 7805). However, the 78xx device's quiescent current is substantially higher and less stable . Because of this, the error term in the formula cannot be ignored and the value of the low - side resistor becomes more critical . More stable adjustments can be made by providing a reference voltage that is less sensitive than a resistive divider to current fluctuations, such as a diode drop or a voltage buffer . The LM317 is designed to compensate for these fluctuations internally, making such measures unnecessary . </P> <P> The LM337 relates in the same way to the fixed 79xx regulators . </P>

State the parameters of ic lm 317 with help of datasheet