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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Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed ddatasheet above the adjustment pin which in this case is labelled ” ground “.

An optional output ca.

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. Full output current dataasheet available at high input-output voltages.

The LM negative complement to the LM regulates voltages below, rather than above, the reference. The LM relates in the same way to the fixed 79xx regulators.

Download datasheet 2Mb Share this page. Archived from the original PDF on 18 April LMH datasheet and specification datasheet. For guaranteed specifications and test conditions, see the Electrical Characteristics. Normally, no capacitors are needed unless the device is sit.


Regulator Full output current not available at high input-output l117h High Current Adjustable Regulator 17 Power Follower www. In addition to higher performance than fixed regulators, the. The LM series of adjustable 3-terminal positive voltage. Retrieved 31 March Prev Next 3-Terminal Adjustable Regulator.

Layout Top Side Note: All other trademarks are the property of their respective owners. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. It was designed by Robert “Bob” Pease.

LMH National Semiconductor, LMH Datasheet

Linear lm1117h circuits Voltage regulation. Accidenti come scotta questo transistor. 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: Page 12 Layout Top Side Note: In packages with a heat-dissipating mounting tab, such as Catasheetthe 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 the application circuit.

Application Hints In operation, the LM develops a nominal 1. Output capacitors in the range.


LM117H – LM117 3-Terminal Adjustable Voltage Regulator Datasheet

Failure to do this may cause the circuit to short. REF The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components. Also, it makes an especially simple adjustable switching reg.

LMH datasheet and specification datasheet Download datasheet. However, the 78xx device’s quiescent current is substantially higher and less stable. The LM is a popular adjustable positive linear voltage regulator.

National Semiconductor

The LM has three pins: If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. Included on the chip are current limit, thermal overload.

Elcodis is a trademark of Elcodis Company Ltd. In other projects Wikimedia Commons. Views Read Edit View history. The guaranteed specifications apply only for the test conditions listed. LM series offers full overload protection available only in.