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

LMBT Datasheet, LMBT PDF, Pinouts, Circuit – Motorola => Freescale

Linear integrated circuits Voltage regulation. Like the LM, each of datashdet 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 “.

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 lm3317bt tab or the heat sink from other parts of the application circuit.

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Eliminates Stocking many Fixed Voltages. In other projects Wikimedia Commons. This page was last edited on 6 Julyat Output Adjustable between 1. This device can also be used to make a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM can be used as a precision current regulator.

How the adjustment pin is connected determines the output voltage as follows. Because some quiescent current flows from the adjustment pin of the device, an error term is added:. If the adjustment pin is connected to ground the output pin delivers a regulated voltage of datashdet. The LM negative complement to the LM regulates lm371bt below, rather than above, the reference.


Three-terminal adjustible output positive voltage regulator. Archived from the original PDF on 31 March Archived from the original on 17 December The LM relates in the same way to 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 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. Three-Terminal Positive Voltage Regulator. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. By using this site, you agree to the Terms of Use and Privacy Policy. However, the 78xx device’s quiescent current is substantially higher and less stable.

Floating Operation for High Voltage Applications 7.

LM317BT Datasheet PDF – Motorola => Freescale

Output Current in Excess of 1. For large voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit. 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 is an adjustable 3—terminal positive voltage regulator capable of supplying in excess of 1. Retrieved from ” https: The LM is an adjustable analogue to the popular 78xx fixed regulators. Three-terminal positive voltage regulator. The LM has three pins: Archived from the dattasheet PDF on 18 April The device can be configured to datashheet the current to a load, rather than the voltage, by replacing the low-side resistor of the divider with the load itself.


This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.

The LM is a popular adjustable positive linear voltage regulator. It was designed by Robert “Bob” Pease. Wikimedia Commons has media related to LM and Voltage regulator circuits.

LMBT Datasheet pdf – Three-terminal adjustible output positive voltage regulator – Motorola

Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. The output current is that resulting from dropping the reference voltage across the resistor.

Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground. The LM is designed to compensate for these fluctuations datasneet, making such measures unnecessary.

Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow—out proof. Failure to do this may cause the circuit to short. The LM serves a wide variety of applications including local, on card regulation.