LM Easy Switchertm a Step-down Voltage Regulator The LM series of regulators are monolithic integrated circuits ideally suited for easy and. Submit Documentation Feedback. 5. Product Folder Links: LM LMHV .. The inductor manufacturer’s data sheets include current and energy limits to. LM 0 LMHV-5 0 5 V(Max). VOUT. Output Voltage. 0 5A s ILOAD s 3A. 5 0. V. LM .. Application Hints section of this data sheet. 2.
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The LM is a voltage Regulator ICit uses the Buck-converter topology to step-down and regulate higher level voltage values to lower level.
There are also fixed output voltage type and variable output voltage type of Converters available with the same IC. So if you are looking for a switching step-down regulator with these characteristics to regulate a voltage for your pm2576-5 then this IC might be of interest to you.
Using the LM is very easy; it requires daasheet 6 additional components including an inductor which is placed in series with the output. The value of the inductor can range from 47uH to uH based on the output required.
A typical application circuit for LM is show below. Since this is a switching circuit electrostatic interference should be kept in mind while designing the PCB of placing the components on a perf board.
The circuit also deals with high current and hence a suitable high voltage di-electric capacitor with low ESR equivalent series resistance should be chosen.
Also a high current will be passing through the indictor and hence the coil should be of high gauge to allow the current to pass through it. Using a wrong value or low wattage inductor might damage the IC permanently.
The diode 1N is a Schottky diode which can be used with the high switching speed of the regulator IC since it operates at 52kHz. Also the voltage drop across the diode is less and can allow high current to pass through it. Lm2576- since we are dealing with step-down switching circuit there will high power dissipation and the use of heat sink for the LM is mostly mandatory.
LM Buck Converter equivalents, price and datasheet
Submitted by admin on 29 July LM Regulator features and specifications Switch mode step down voltage regulator Output Voltage for fixed voltage regulator: Upto 3A Maximum Input Voltage: How to use LM IC? Applications Used in ln2576-5 circuits since they have high efficiency Step-down Linear regulators Used in small SMPS circuits Can also be used to source negative voltage. TL — Programmable Reference Voltage.
This pin is provided with the feedback voltage based on which the output is regulated.