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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If anyone has suggestions I would be most gratefull.

The maximum value is mV. Message 5 of 5. Multisim Voltage reg simulation. This 7 Watts will be dissipated as heat. These capacitors should be placed close to the terminals for them to work effectively.

Voltage regulators are very common in electronic circuits.

LM Negative Voltage Regulator Pinout, Specs, Circuit & Datasheet

Message 2 of 5. The convergence assistant suggest to switch the integration to the Gear algorithm, which resulted in a stable and correct output. The output regulation is specified for a current change from 5 mA to 1 A.


Thanks Lynn Dtaasheet tried that with a 1k load and that resulted in an output voltage of Although the datasheet does not specify or call for any minimum load, it also does not specify the performance at no load.

They provide a constant output voltage for a varied input voltage. Complete Technical Details can be found at the LM voltage regulator datasheet given at the end of this page.

We just need two capacitors of vale 2. Message 4 of 5. The output current of this IC can go up to 1. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic.

Depending on the construction of the model for the regulator, it is possible that it needs a minimum load. Perhaps changes to other l,7905 in the “Custom Analysis Options” dialog will improve the convergence. This is a typical application circuit of the IC. Message 1 of 5. Why do we need Negative Voltage Regulators? In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs.


In our case the IC is an negative 5V regulator, meaning it provides -5V as output. Message 3 of 5.

The input capacitor 2. TL — Programmable Reference Voltage. Try putting a load resistor from each output to ground. Screen capture is attached. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

LM7905 Datasheet PDF

Most Active Software Boards: My mistake must be simple, but I can’t spot it. I swapped the LM for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds. So Multisim cannot simulate the output of a garden variety, ultra common, component like the LM So I went back to the LM but that still resulted in the incorrect output.

Brief Description on Voltage Regulator Voltage regulators satasheet very common in electronic circuits.