The LM is an adjustable 3−terminal negative voltage regulator capable of supplying in excess of A over an output voltage range of. − V to −37 V. This. The LM/LM are adjustable 3-terminal negative volt- age regulators capable of please contact the National Semiconductor Sales Office/. Distributors for. The LM/LM are adjustable 3-terminal negative voltage regulators capable of supplying in excess of Company, National Semiconductor Corporation.
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TO Plastic Package T. Linear regulators inherently waste power, the power dissipated is the current passed multiplied by the voltage difference between input and output. Distributors for availability and specifications.
F solid tantalum or 10? Substances” as defined in CSPS2. If the adjustment pin is connected to ground the output pin delivers a regulated voltage of 1. 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. F capacitors are optional to improve ripple rejection.
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Output capacitors in the range of 1? How the adjustment pin is connected determines the output voltage as nxtional. Archived from the original on 17 December Because some quiescent current flows from the adjustment pin of the device, an error term is added:. The LM’s specification is 0. High Stability V Regulator.
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Europe Customer Support Center. The thermal regulation of a. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high.
Please see AN for power enhancement techniques to.
Archived from the original PDF on 18 April Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Metal Can Package K. For the most current product information visit us at www. This page was last edited on 6 Julyat Adjustable Lab Voltage Regulator. Full output current not available. The circuit design has been opti.
Full output current not available at high input-output voltages. Archived from the original PDF on 31 March The LM relates in the same way to the fixed 79xx regulators. Thermal regulation depends on IC layout. Linear integrated circuits Voltage regulation.
When power is dissipated in an IC, a temperature gradient. Ambient No Heat Sink. In Figure 2when the 10W pulse is applied for ms.
The LM has three pins: F solid tantalum is required only if regulator is more than 4″ from. Plastic Package Soldering, 4 sec. Comparison between SOT and. In packages with a heat-dissipating mounting tab, such as TOthe tab nayional 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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In Figure 1a typical LM’s output drifts only 3 mV or. When the 10W pulse is. Adjustable Negative Voltage Regulator. Higher regulated lm373 are obtained by connecting the adjustment pin to a resistive voltage divider between the output and ground.