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.

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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 datxsheet voltage regulator. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance.

Quote and Order boards in minutes on https: But It can supply the output current over 3.

We can use the LM on a wide variety of applications. This site uses Akismet to reduce spam.

National Semiconductor

You can buy at mouser. For example A simple adjustable switching regulator. Because you like many circuits to make on your working. A precision current regulator. Also, its pin output connects the heatsink surface.


Basic to use LM We love it because easy to use. If you are looking for 3A adjustable power supply.

SGS Thomson Microelectronics

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.

The LM is best for you. See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection.

It looks much like the popular LM You see LM circuit below. Because it is the adjustable three terminal positive voltage regulator.

Last update 6 January However, other values such as or ohms can also be used for R 1. Learn how your comment data is processed.

LM Datasheet(PDF) – Motorola, Inc

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. An optional output capacitor can be added to improve transient response. Created 28 July If you want to try it. We use only 2 resistors to control the output voltage. In addition, it uses internal current limiting, thermal shutdown, and safe mode.

Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. Over and Under lm35 protection of electrical appliances July 11, Simple Crystal oscillator Circuit using 74LS04 November 17, Transistor stereo bass booster September 15, The LM may be boring for you.


LM Datasheet Motorola pdf data sheet FREE from

Normally, no datadheet 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 required. Since it has high current over 3A, we must mount the LM on llm350 large datasbeet.

We have many ways to make it. We can set the output voltage with only two external resistors. Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. Many electronics circuits and projects for learning in simple ways. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.

Leave a Reply Cancel reply. Which it looks like a popular LM See the list below you may like it.