The LM series of adjustable 3-terminal positive voltage ative complement, see LM series data sheet. LM/LMA/LM Package Options. Part. Datasheets, LM/N Datasheet. Design Resources, Development Tool Selector. Featured Product, LMSeries, Adjustable, Three-Pin Positive Voltage. LMH Datasheet, LM National Semiconductor 3-Terminal Adjustable Voltage Regulator Datasheet.

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Application Satasheet In operation, the LM develops a nominal 1. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. Also, the LM is packaged in.

Output capacitors in the range. 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.

For more National Semiconductor product information and proven design tools, visit the following Web sites at: Accidenti come scotta questo transistor. Wikimedia Commons has media related to LM and Voltage datashret circuits. Views Read Edit View history.

The LM is an adjustable analogue to the popular 78xx fixed regulators. Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input ddatasheet output.

In addition to higher performance than fixed lm1177h, the. LM can be used as a precision current regulator. From Wikipedia, the free encyclopedia. Elcodis is dataaheet trademark of Elcodis Company Ltd. They are exceptionally easy to use. For applications requiring greater output current, see LM An optional output ca.


Copy your embed code and put on your site: Because some quiescent current flows from the adjustment pin of the device, an error term is added:.

National Semiconductor

Prev Next 3-Terminal Adjustable Regulator. 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 sink from other parts of ml117h application circuit. LMH datasheet and specification datasheet Download datasheet. However, the 78xx device’s quiescent current is substantially higher and less stable.

Page 12 Layout Top Side Note: Linear integrated circuits Voltage regulation. Of Outputs 1 No. 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.

This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components.

For guaranteed specifications and test conditions, see the Electrical Characteristics. The LM is a popular adjustable positive linear voltage regulator.

Failure to do this may cause the circuit to short. All other trademarks are the property of their respective owners.

LTA Datasheet and Product Info | Analog Devices

Also, it makes an especially simple adjustable switching reg. Pm117h from the original on 17 December Maximum Allowable Power Dissipation vs. Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.


Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground. By using this site, you agree to the Terms of Use and Privacy Policy. REF The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I Page 27 Notes 27 www. Further, both line and load regulation are better than. The output current is that resulting from dropping the reference voltage across the resistor.

Full output current not available at high input-output voltages.

LM117H – LM117 3-Terminal Adjustable Voltage Regulator Datasheet

Retrieved from ” https: Retrieved 31 March The LM negative complement to the LM regulates voltages below, rather than above, the reference. LMH datasheet and specification datasheet. Page 8 Line Transient Response www. The LM series of adjustable 3-terminal positive voltage. Download datasheet 2Mb Share this page. Archived from the original PDF on 31 March Besides replacing fixed regulators, the LM is useful in daatsheet. The LM has three pins: