LM LMA LM 3-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. APPLICATION HINTS. In operation, the LM develops a nominal V reference voltage, V(ref), between the output and adjustment terminal. The reference. The LM is an adjustable 3-terminal positive voltage regulator capable of supplying in excess of A over an output voltage range of V to.

Author: Fenrigal Fesho
Country: Iraq
Language: English (Spanish)
Genre: Health and Food
Published (Last): 18 February 2011
Pages: 328
PDF File Size: 9.93 Mb
ePub File Size: 20.21 Mb
ISBN: 333-5-36523-797-4
Downloads: 63696
Price: Free* [*Free Regsitration Required]
Uploader: Arasar

Created 28 July This site uses Akismet to reduce spam.

If you want to try it. Quote and Order boards in minutes on https: We can use the LM on a wide variety of applications. You see LM circuit below. We have many ways to make it. Because you like many circuits to make on your working.

When external capacitors are used with a voltage regulator it may be necessary to use protection diodes to prevent the capacitors from discharging through low current points into the voltage regulator.


The LM voltage regulators can provide up to 1. We use only 2 resistors to control the output voltage. An optional output capacitor can be added to improve transient response. Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC.

As in the LM pinout above. A precision current regulator. Plan to be about 3V about the desired output voltage. Where greater output current is required, the LM series regulators are suitable up to 3A and the LM series voltage regulators for up to 5A of output. A programmable output regulator. To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button. This is an LM Datasheet.

National Semiconductor – datasheet pdf

The dropout voltage of the IC regulator is about 1. See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.


Also, its datwsheet output connects the heatsink surface. You can buy at mouser. The LM is best for you. The LM may be boring for you.

National Semiconductor

With connecting a fixed resistor between the adjust and output. You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator. Which it looks like a popular LM Many electronics circuits and projects for learning in simple ways.

Basic to use LM We love it because easy to use. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.

However, other values such as or ohms can also be used for R 1. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection.

Posted in Art