executable code (“object code”)), data sheets, BOMs, schematics, application notes, design & development tools, evaluation board material (i.e. BOM, Gerber, . 3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS. The LM79XX series of three-terminal negative regulator. are designed for a wide range of applications. LM datasheet, LM pdf, LM data sheet, datasheet, data sheet, pdf, Contek Microelectronics, 3-terminal 1A negative voltage regulator. Output.

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LM Datasheet PDF –

Although the datasheet does not specify or call for any minimum load, it also does not specify the performance at no load. Complete Technical Details can be found at the LM voltage regulator datasheet given at the end of this page. So our will provide a -5V output voltage. Most Active Software Boards: Screen capture is attached. The output current of this IC can go up to 1.

Submitted by admin on 10 June My mistake must be simple, but I can’t spot it. Multisim Voltage reg simulation. Try putting a load resistor from each output to ground. In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs. This 7 Watts will be dissipated as heat.


The output regulation is specified for a current change from 5 mA to 1 A. The input capacitor 2. Message 1 of 5. I swapped the LM for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds.

Search Results for LM7905 : 2 documents found

Message 3 of 5. Message 5 of 5. TL — Programmable Reference Voltage. This is a typical application circuit of the IC. We just need two capacitors of vale 2. Why do we need Negative Voltage Regulators?

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These capacitors should be placed close to the terminals for them to work effectively. Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits. Catasheet anyone has suggestions I would be most gratefull.

The convergence assistant suggest to switch the integration datashdet the Gear algorithm, which resulted in a stable and correct output. Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. Message 4 of 5.

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Message 2 of 5. Depending on the construction of the model for the regulator, it is possible that it needs a minimum load. Thanks Lynn I tried that with a 1k load and that resulted in an output voltage of Perhaps changes to other options in the “Custom Analysis Options” dialog will improve the convergence. Voltage regulators are very common in electronic circuits. So Multisim cannot simulate the output of a garden variety, ultra common, component like the LM They provide a constant output voltage for a varied input voltage.

Also they should be of ceramic type, datasjeet ceramic capacitors are datasheet than electrolytic. The maximum value is mV.

So I went back to the LM but that still resulted in the incorrect output. In our case the IC is an negative 5V regulator, meaning it provides -5V as output.