TI-LM317AMDT/NOPB

Manufacturer:

Texas Instruments

Product Number:

TI-LM317AMDT/NOPB

Description:

<span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">The LM317A a

Datasheet:

LM317AMDT/NOPB

Description:

<span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">The LM317A adjustable 3-terminal, positive-voltage regulators are capable of supplying current in excess of 1.5 A over a 1.25-V to 37-V output range and provide 1% output-voltage accuracy. Both line regulation and load regulation are better achieved with the LM317A device than with standard fixed regulators.</span><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">The LM317A offers full overload protection such as over current, thermal-overload protection, and safe-area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.</span><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">Typically, 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 and can be replaced with a ceramic and appropriate ESR. The adjustment terminal can be bypassed to achieve very high ripple-rejection ratios that are difficult to achieve with standard 3-terminal regulators.</span><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">Because the LM317A regulator is floating and detects only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. Exceeding the maximum input-to-output deferential will result in short-circuiting the output. By connecting a fixed resistor between the adjustment pin and output, the LM317A can be also used as a precision current regulator.</span><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><br style="box-sizing: border-box; color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="color: rgb(51, 51, 51); font-family: &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255);">For applications requiring greater output current, see the LM150 series (3A) and LM138 series (5A) data sheets. For the negative complement, see the LM137 series data sheet.</span>