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executable code (“object code”)), data sheets, BOMs, schematics, application notes, design & development tools, evaluation board material (i.e. BOM, Gerber, . LM LM – 3-Terminal Negative Regulator, Package: to , Pin Nb=3. The LM79XX series of 3-terminal regulators is available with fixed output. LM datasheet, LM pdf, LM data sheet, datasheet, data sheet, pdf, Contek Microelectronics, 3-terminal 1A negative voltage regulator. Output.

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Although the datasheet does not specify or call for any minimum load, it also does not specify the performance at no load. The maximum value is mV. Message 5 of 5.

LM Datasheet(PDF) – National Semiconductor (TI)

The output regulation is specified for a current change from 5 mA to 1 A. If anyone has suggestions I would be most gratefull. Message 3 of 5. Complete Technical Details can be found at the LM voltage regulator datasheet given at the end of this page. Depending on the construction of the model for the regulator, it is possible that it needs a minimum load. TL — Programmable Reference Voltage. In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs.


Message 1 of 5.

Try putting a load resistor from each output to ground. So I went back to the LM but that still resulted in the incorrect output. datashedt

Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits. Thanks Lynn I tried that with a 1k load and that resulted in an output voltage of Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. This 7 Watts will be dissipated as heat. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic.

Message 4 of 5. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

The convergence assistant suggest to switch the integration to the Gear algorithm, which resulted in a stable and correct output.

LM 7905 CT

So Multisim cannot simulate the output of a garden variety, ultra common, component like the LM We just need two capacitors of vale 2. Vatasheet by admin on 10 June So our will provide a -5V output voltage. They provide a constant output voltage for a varied input voltage. Voltage regulators are very common in electronic circuits. Why do we need Negative Voltage Regulators?


The output current of this IC can go up to 1. Message 2 of 5.

Most Active Software Boards: My mistake must be simple, but I can’t spot it. Multisim Voltage reg simulation. Screen capture is attached. Perhaps changes to other options in the “Custom Analysis Options” dialog will improve the convergence. These capacitors should be placed close to the terminals for them to work effectively.

The input capacitor 2. In our case datahseet IC is an negative 5V regulator, meaning it provides -5V as output. This is a typical application circuit of the IC. I swapped the LM for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds.