The LM series operates at a switching frequency .. datasheet and the thermal model in LMX Made Simple software (version ). The value θJ−A for. Texas Instruments LM are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments LM This feature greatly simplifies the design of switch-mode power supplies using these advanced ICs. Also included in the datasheet are selector guides for diodes.

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It was the diode around the wrong way. Okay so I change the input capacitor to uF electrolytic and the output to 47uF.

Cb is shown in the data sheet as 0. I followed the instructions in the LM datasheet. Yes, my password is: I used the following equation as per the datasheet: Buck Converter Output Voltage Posted by notoriusjt2 in forum: I didn’t think it was wrong because the previous one I built had it that way and still worked.


Voltage regulator and caps getting very hot Posted by andrei. Do you already have an account?

12v to 6v Buck Converter LM2675-adj producing no output voltage and getting very hot

Apr 26, 6. Apr 26, 7. The capacitor values are much bigger than those suggested for input and output by the data sheet.

Dahasheet 26, 4. Thanks for your help tho.

LM Buck Converter equivalents, price and datasheet

I made sure my soldering is good. Your name or email address: I just realised, I made a typo and continued it. Buck converter output voltage ripple Posted by notoriusjt2 in forum: Apr 26, 8. Nov 12, 3, 2, Table 3, page 15, shows a table for selecting the output capacitor, and pages following that discuss the input capacitor.

I just can’t datasheett what I am doing wrong any help would be appreciated.

I am trying to convert from 12v to 6v. No, create an account now. Apr 26, 1.

Discussion in ‘ Power Electronics ‘ started by tshaApr 26, You May Also Like: Apr 26, 2. The problem is I am getting only a few mV on the output and the LM gets super hot fast.


I have rebuilt this circuit 5 times on different boards and different layouts. Posted by jrd-aac in forum: What size caps would you guys suggest? This is the data sheet I have been using: Apr 26, 5. Control an Arduino with Bluetooth This article will show you how to set up two way communication between an Arduino and your Android Smartphone using Bluetooth. I am using the following parts: That might l2m675 why I didn’t have CB.

LM Datasheet(PDF) – National Semiconductor (TI)

Still the IC is just getting hot and only outputting mV. Apr 26, 5 0.

Apr 26, 9. Quote of the day. Datasueet am learning and hopefully, one day soon can help others. Jun 4, 6, 1, Wish I could delete this thread, failed project, failed post haha. I’ll go back see if I can find the right size.