LMBT datasheet, LMBT pdf, LMBT data sheet, datasheet, data sheet, pdf, Motorola, Three-terminal adjustible output positive voltage regulator. LM, LM Datasheet .. LMBT. LM, LM . The part number LM has been moved to a separate datasheet. Removed TO LMBT datasheet, LMBT circuit, LMBT data sheet: ONSEMI – A Adjustable Output, Positive Voltage Regulator,alldatasheet, datasheet, Datasheet.

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Retrieved 31 March In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. The LM is an adjustable analogue to the popular 78xx fixed regulators. Three-terminal adjustible output positive voltage regulator. Wikimedia Commons has media related to LM and Voltage regulator circuits.

Archived from the original on 17 December Three Terminal Positive Voltage Regulator. Archived from the original PDF on 18 April From Wikipedia, the free encyclopedia. The LM is an adjustable 3—terminal positive voltage regulator capable of supplying in excess of 1.

LMBT ON Semiconductor | Ciiva

This voltage regulator is exceptionally easy to use and datsheet only two external resistors to set the output voltage. How the adjustment pin is connected determines the output voltage as follows.

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.


Archived from the original PDF on 31 March The LM is a popular adjustable positive linear voltage regulator. However, the 78xx device’s quiescent current is substantially higher and less stable.

1.5 A Adjustable Output, Positive Voltage Regulator

It was designed by Robert “Bob” Pease. Output Transistor Safe—Area Compensation 6. Higher regulated voltages are obtained by connecting the adjustment pin to datasheeg resistive voltage divider between the output and ground. Three-terminal positive voltage regulator.

If the adjustment adtasheet is connected to ground the output pin delivers a regulated voltage of 1. Retrieved from ” https: 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 the application circuit.

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LMBT Datasheet(PDF) – ON Semiconductor

Accidenti come scotta questo transistor. For dagasheet voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit.

Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow—out proof.

The LM negative complement to the LM regulates voltages below, rather than above, the reference.

Like the LM, each of the 78xx regulators is designed to adjust the output voltage lm317nt it is some fixed voltage above the adjustment pin which in this case is labelled ” ground “.


The output current is that resulting from dropping the reference voltage across datasheey resistor. The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. 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.

The LM relates in the same way dztasheet the fixed 79xx regulators. Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.

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. Output Current in Excess of 1.

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LM317BT Datasheet PDF – Motorola => Freescale

Internal Thermal Overload Protection 4. Three-Terminal Positive Voltage Regulator. Linear regulators inherently waste datashheet, the power dissipated is the current passed multiplied by the voltage difference between input and output.