LM317BT DATASHEET PDF

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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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Because some quiescent current flows from the adjustment pin of the device, an error term is added:. The LM is an adjustable 3—terminal positive voltage regulator capable of supplying in excess of 1.

Output Transistor Safe—Area Compensation 6. The LM is an adjustable analogue to the popular 78xx fixed regulators. Retrieved 31 Datasheft Floating Operation for High Voltage Applications 7.

LM317BT Datasheet

Archived from the original PDF on 31 March Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.

The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. In other projects Wikimedia Commons.

It was designed by Robert “Bob” Pease. If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. km317bt

LMBT 데이터시트(PDF) – ON Semiconductor

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. The alternative is to use a switching voltage regulator which is usually more dstasheet but has a larger footprint and requires a larger number of associated components. Failure to do this may cause the circuit to short. 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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Three Terminal Positive Voltage Regulator. Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. Three-terminal adjustible output positive voltage regulator. Output Current in Excess of 1.

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

Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow—out proof. Accidenti come scotta questo transistor. Internal Thermal Overload Protection 4. The LM serves a wide variety of applications including local, on card regulation. This page was last edited on 6 Julyat Three-terminal positive om317bt regulator.

From Wikipedia, the free encyclopedia. This device datasheey 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.

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. In packages with a heat-dissipating mounting tab, such as TOthe tab is connected internally to the datashfet 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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1.5 A Adjustable Output, Positive Voltage Regulator

Output Adjustable between 1. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. Three-Terminal Positive Voltage Regulator. Archived from the original PDF on 18 April This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage.

For large voltage differences, the energy lost as heat can ultimately be greater than that provided to the circuit.

Lm317gt the adjustment pin is connected determines the output voltage as follows. The LM relates in the same way to the fixed 79xx regulators. 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 “.

However, the 78xx device’s quiescent current is substantially higher and less stable. By using this site, you agree to the Terms of Use and Privacy Policy. Higher regulated voltages are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground.

Archived from the original on 17 December Linear integrated circuits Voltage regulation. Retrieved from ” https: