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: Nazilkree Shagal
Country: Lebanon
Language: English (Spanish)
Genre: Love
Published (Last): 14 November 2008
Pages: 478
PDF File Size: 6.11 Mb
ePub File Size: 9.53 Mb
ISBN: 536-3-26927-196-7
Downloads: 26147
Price: Free* [*Free Regsitration Required]
Uploader: Shakakasa

The dropout voltage of the IC regulator is about 1. This site uses Akismet to reduce spam.

LM Datasheet Motorola pdf data sheet FREE from

Plan to be about 3V about the desired output voltage. If you want to try it.

However, other values such as or ohms can also be used for R 1. For example A simple adjustable switching regulator. 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. Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. Please update your bookmarks.

Since it has high current over 3A, we must mount the LM on the large heatsink. As in the LM pinout above. Over and Under voltage protection of electrical appliances July 11, Simple Crystal oscillator Circuit using 74LS04 November 17, Transistor stereo bass booster September 15, See the list below you may like it.

TOP Related Articles  AMPLIDYNE PDF

Because it is the adjustable three terminal positive voltage regulator.

National Semiconductor

Leave a Datashete Cancel reply. We can set the output voltage with only two external resistors. This is an LM Datasheet. The LM is best for you. You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator.

Quote and Order boards in minutes on https: We use only 2 resistors to control the output voltage. If you are looking for 3A adjustable power supply.

Basic to use LM We love it because easy to use. An optional output capacitor can be added to improve transient response.

The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection. You can buy at mouser.

To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button. daatsheet

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. The LM may be boring for you.

We can use the LM on a wide variety of applications. Last update 6 January In addition, it uses internal current limiting, thermal shutdown, and safe mode. A precision current regulator.


Also, its pin output connects the heatsink surface. You see LM circuit below. A programmable output regulator. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. Created 28 July We have many ways to make it.

LM / LM / LM Voltage Regulator Calculator and Circuits

Where greater output current is required, the LM series regulators are suitable up to 3A and the LM series ratasheet regulators for up to 5A of output. But It can supply the output current over 3.

With connecting a fixed resistor between the adjust and output. Because you like many circuits to make on your working. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. 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 required.