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: Viramar Kajimi
Country: Sierra Leone
Language: English (Spanish)
Genre: Sex
Published (Last): 3 July 2010
Pages: 431
PDF File Size: 12.20 Mb
ePub File Size: 4.79 Mb
ISBN: 833-1-89750-638-9
Downloads: 63880
Price: Free* [*Free Regsitration Required]
Uploader: Vilkree

Because it is the adjustable three terminal positive voltage regulator. 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. For example A simple adjustable switching regulator.

Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. Although the surge is very short in duration, there lm3550 enough energy to damage parts of the regulator IC. Basic to use LM We love it because easy to use. Many electronics circuits and projects for learning in simple ways. 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.


See the voltage regulator datasheets above for specific details regarding the dropout l3m50 and heatsink requirements.

Datasheets search archive of electronic components datasheets

The LM may be boring for you. We use only 2 resistors to control the output voltage. Normally, no capacitors are needed unless the device is situated more than mm 6 inches from the input filter capacitors in which case an input bypass capacitor is datashheet. If you are looking for 3A adjustable power supply.

However, other values such as or ohms can also be used for R 1. This is an LM Datasheet. You see LM circuit below. Please update your bookmarks. But It can supply the output current over 3.

To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button. We can set the output voltage with only two external resistors. With connecting a fixed resistor between the adjust and output.

SGS Thomson Microelectronics – datasheet pdf

It looks much like the datasheet LM The dropout voltage of the IC regulator is about 1. Also, its pin output connects the heatsink surface. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. An optional output capacitor can be added to improve pm350 response. Last update 6 January You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator.


LM Datasheet 3A adjustable Regulator |

Leave a Reply Cancel reply. Because you like many circuits to make on your working. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.

The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection. Which it looks like a popular LM If you want to try it.

Since it has high current over 3A, we must mount the LM on the large heatsink.

See the list below you may like it. As in the LM pinout above.

This site uses Akismet to reduce spam. Over and Under voltage protection of electrical appliances July 11, Simple Crystal oscillator Circuit using 74LS04 November 17, Transistor stereo bass booster September 15, The LM is best for you. A precision current regulator. The LM voltage regulators can provide up daatsheet 1. Created 28 July