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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Try putting a load resistor from each output to ground. I swapped the Dataaheet for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds. Depending on the construction of the model for the regulator, it is possible that it needs a minimum load.

Why do we need Negative Voltage Regulators? They provide a constant output voltage for a varied input voltage. Message 5 of 5. The input capacitor 2.

Message 1 of 5. The output current of this IC can go up to 1. The convergence assistant suggest to switch the integration to the Gear algorithm, which resulted in a stable and correct output. If anyone has suggestions I would be most gratefull.


This is a typical application circuit of the IC. In our case the IC is an negative 5V regulator, meaning it provides -5V as output. So I went back to the LM but that still resulted in the incorrect output. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic. My mistake must be simple, but I can’t spot it. Message 3 of 5.

LMCT Texas Instruments National Semiconductor | Ciiva

We just need two capacitors of vale 2. Complete Ratasheet Details can be found at the LM voltage regulator datasheet given at the end of this page. These capacitors should be placed close to the terminals for them to work effectively. The maximum value is mV. TL — Programmable Reference Voltage. Although the datasheet does not specify or call for any minimum load, it also does not specify the dxtasheet at no load. Message 2 of 5.

LM7905 Datasheet

The lj7905 regulation is specified for a current change from 5 mA to 1 A. Message 4 of 5. Perhaps changes to other options in the “Custom Analysis Options” dialog will improve the convergence. Thanks Lynn I tried that with a 1k load and that resulted in an output voltage of Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits.


So Multisim cannot simulate the output of a garden variety, ultra common, component like the LM Submitted by admin on 10 June Screen capture is attached. This 7 Watts will be dissipated as heat. Multisim Voltage reg simulation.

LM7905 Datasheet PDF

In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs. Most Active Software Boards: So our will provide a datawheet output voltage. Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Voltage regulators are very common in electronic circuits.