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: Malakasa Kall
Country: Ghana
Language: English (Spanish)
Genre: Personal Growth
Published (Last): 22 April 2009
Pages: 199
PDF File Size: 4.35 Mb
ePub File Size: 2.8 Mb
ISBN: 898-7-35499-460-8
Downloads: 6998
Price: Free* [*Free Regsitration Required]
Uploader: Shakar

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.

View lm7905 datasheet:

The input capacitor 2. My mistake must be simple, but I can’t spot it.

We just need two capacitors of vale 2. Submitted by admin on 10 June I swapped the LM for another -5V regulator, the UPC, which gave the correct output but failed after a few seconds.

In many cases where an Op-Amp is working in dual mode power supply a negative voltage will be regulated by datasueet 79XX ICs. The convergence assistant suggest to switch the integration to the Gear algorithm, which resulted in a stable and correct output. So our will provide a -5V output voltage. Message 3 of 5. Multisim Voltage reg simulation.


LM Datasheet(PDF) – TI store

This 7 Watts will be dissipated as heat. TL — Programmable Reference Voltage. Depending on the construction of the model for the regulator, it is possible that it needs a minimum load. This is a typical application circuit of the IC.

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. Message 2 of 5.

Although the datasheet does not specify or call for any minimum load, it also does not specify the performance at no load. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic. Message 1 of 5.

Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits. In our case the IC is an negative 5V regulator, meaning it provides -5V as output. Screen capture is attached. Perhaps changes to other options in the “Custom Analysis Options” dialog will improve the convergence. Most Active Software Boards: The maximum dahasheet is mV. Datasheer 4 of 5. These capacitors should be placed close to the terminals for them to work effectively.


Message 5 of 5. If anyone has suggestions I would be most gratefull. Voltage regulators are very l7905 in electronic circuits. Thanks Lynn I tried that with a 1k load and that resulted in an output voltage of They provide a constant output voltage for a varied input 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. The output regulation is specified for a current change from 5 mA to 1 A. Try putting a load resistor from each output to ground. Why do we need Negative Voltage Regulators?