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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The LM relates in the same way to the fixed 79xx regulators. This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components.

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(PDF) LM317AT Datasheet download

J Order Package Number Marking 1. Included on the chip are dataxheet limit, thermal overload. Download datasheet 2Mb Share this page.

The LM series of adjustable 3-terminal positive voltage. Also, the LM is packaged in.

Page 8 Line Transient Response www. The output current is that resulting from dropping the reference voltage across the resistor. The alternative is to use a switching voltage regulator which is usually more efficient but has a larger footprint and requires a larger number of associated components. lm17at

Layout Top Side Note: 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. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. They are exceptionally easy to use. Page 18 Current Regulator 1. The LM is a popular adjustable positive linear voltage regulator.


It was designed by Robert “Bob” Pease. By using this site, you agree to the Terms of Use and Privacy Policy.

DRVAIRGPT from Texas Instruments

Like the LM, 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 “. REF The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I However, the 78xx device’s quiescent current is substantially higher and less stable. Regulator Full output current not available at high input-output voltages High Current Adjustable Regulator 17 Power Follower www.

Page 27 Notes 27 www. Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground. Maximum Allowable Power Dissipation vs.

From Wikipedia, the free encyclopedia. An optional output ca.

Page 12 Layout Top Side Note: LM series offers full overload protection available only datadheet. Also, it makes an especially simple adjustable switching reg. If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. Application Hints In operation, the LM develops a nominal 1.


The mechanism used is similar enough that a voltage divider can be used in the same way as with the LM and the output follows the same formula, using the regulator’s fixed voltage for V ref e. Copy your embed code and put on your site: For more National Semiconductor product information and proven design tools, visit the following Web sites at: The LM is an adjustable analogue to the popular 78xx fixed regulators.

LMAT datasheet and specification datasheet Download datasheet. Datxsheet 31 March The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. Archived from the original PDF on 31 March Prev Next 3-Terminal Adjustable Regulator.

The LM has three pins: Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. Accidenti come scotta questo transistor. This page was last edited on 6 Julyat Further, both line and load regulation are better than. Page 17 Regulator Full output current not available at high input-output voltages High Current Adjustable Regulator 17 Power Follower www.