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.

Author: Tygogrel Dair
Country: Saint Lucia
Language: English (Spanish)
Genre: Automotive
Published (Last): 14 March 2014
Pages: 280
PDF File Size: 3.15 Mb
ePub File Size: 15.95 Mb
ISBN: 967-9-51192-273-7
Downloads: 32610
Price: Free* [*Free Regsitration Required]
Uploader: Kagabei

Message 3 of 5. Although the datasheet does not specify or call for any minimum load, it also does not specify the performance at no load. datasehet

LM7905 Datasheet

Why do we need Negative Voltage Regulators? Screen capture is attached.

Voltage regulators are very common in electronic circuits. The convergence assistant suggest to switch the integration to the Gear algorithm, which resulted in a stable and correct output. They provide a constant output voltage datasheer a varied input voltage. My mistake must be simple, but I can’t spot it.

LM Datasheet(PDF) – TI store

Negative voltage regulators are mainly used in Op-Amp and other circuits where a negative supply voltage is needed. Message 1 of 5. TL — Programmable Reference Voltage.


Message 5 of 5. Message 4 of 5. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. This 7 Watts will be dissipated as heat. Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits.

Try putting a load resistor from each output to ground. Thanks Lynn I tried that with a 1k load and that resulted in an output voltage of Depending on the construction of the model for the regulator, it is possible that it needs a minimum load. So our will provide a -5V output voltage.

LM Hoja de datos ( Datasheet PDF ) – LM79XX Series 3-Terminal Negative Regulators

Datasneet maximum value is mV. We just need two capacitors of vale 2. If anyone has suggestions I would be most gratefull. Perhaps changes to other options in the “Custom Analysis Options” dialog will improve the convergence. In our case the IC is an negative 5V regulator, meaning it provides -5V as output. These capacitors should be placed close to the terminals for them to work effectively.

Multisim Voltage reg simulation. Message 2 of 5. This is a typical application circuit of the IC.


Search Results for LM7905 : 2 documents found

I swapped the LM for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds. The input capacitor 2. So I went back to the LM but that still resulted in the incorrect output. In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by these 79XX ICs. So Multisim cannot simulate the output of a garden variety, ultra common, component like the LM Also they should be of ceramic type, since datashewt capacitors are faster than electrolytic.

The output regulation is specified for a current change from 5 mA to 1 A.

Most Active Software Boards: Complete Technical Details can be found at the LM voltage regulator datasheet given at the end of this page. The output current of this IC can go up to 1. Submitted by admin on 10 June