Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are the property of. LMAT Texas Instruments | LMAT-ND DigiKey Electronics. LMAT Linear Digi-Key Part Number, LMAT-ND Datasheets, LMA Datasheet . LMAT datasheet, LMAT pdf, LMAT data sheet, datasheet, data sheet, pdf, National Semiconductor, 3-Terminal Adjustable Regulator.

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Elcodis is a trademark of Elcodis Company Ltd. Accidenti come scotta questo transistor.

If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. Also, the LM is packaged in. From Wikipedia, the free encyclopedia. Page 18 Current Regulator 1. LM can be used as a precision current regulator. Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.

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All other trademarks are the property of their respective owners. For large voltage differences, the energy lost as heat datazheet ultimately be greater than that provided to the circuit. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. Further, both line and load regulation are better than. How the adjustment pin is connected determines the output voltage as follows.


Included on the chip are current limit, thermal overload.

Failure to do this may cause the circuit to short. LM series offers full overload protection available only in.

Retrieved 31 March J Order Package Number Marking 1. In other projects Wikimedia Commons. Page 12 Layout Top Side Note: Copy your embed code and put on your dataasheet The device can be configured to regulate the current to a load, rather than the voltage, by replacing the low-side resistor of the divider with the load itself. Download datasheet 2Mb Share this page. Because some lm317st current flows from the adjustment pin of the device, an error term is added:.

Archived from the original PDF on 18 April REF The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I The LM is an adjustable analogue to the popular 78xx fixed regulators.

By using this site, you agree to the Terms of Use and Privacy Policy. Archived from the original PDF on 31 March An optional output ca. Prev Next 3-Terminal Adjustable Regulator. In addition to higher performance than fixed regulators, the.


For applications requiring greater output current, see LM Retrieved from ” https: Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed dataheet above the adjustment pin which in this case is labelled ” ground “.

Wikimedia Commons has media related to LM and Voltage regulator circuits. Views Read Edit View history. Page 27 Notes 27 www. The LM negative complement to the LM regulates voltages below, rather than above, the reference.

(PDF) LM317AT Datasheet download

The output current is that resulting from dropping the reference voltage across the resistor. Besides replacing fixed regulators, the LM is useful in a. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. In packages with a heat-dissipating mounting tab, such as TOthe tab is connected internally to the output pin which may make it necessary to electrically isolate the tab or the heat datashest from other parts of the application circuit.

Page 8 Line Transient Response www.