Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. General Description. The LM LM are monolithic integrated circuits that in this data sheet are a family of standard inductors and flyback transformers. LM datasheet, LM pdf, LM data sheet, datasheet, data sheet, pdf, National Semiconductor, Series SIMPLE SWITCHER Step-Up Voltage.

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Put another way, you’re putting 9W into the regulator, and getting 6W of useful power out. The input capacitor C1 should be a good quality, low ESR, 0. See Matt Young’s answer above.

When I tried testing it, it seems that it can handle more current than 3A and i’m just too scared to test it out as I might break the product. Okay, that I understand. Home Questions Tags Users Unanswered.

Question on LM Ask Question. The maximum switch current is exactly that: I can’t see any specifications on the datasheet that refers to the maximum input. What I actually need: The LM series of regulators are monolithic integrated circuits that provide all the active functions for a step-up buck switching regulator, fatasheet of driving a 3A load withexcellent line and load regulation. But the inductor is one of the most critical components in these types of circuits, so it’s much safer and simpler to or use ready made off-the shelf parts: If it isn’t possible to actually do it with this product, what are my other alternatives?


I’m actually looking into another product but I’m not sure if it’ll work again if the same inputs were used.

Adjustable DC-DC Booster- LM2577

JavaScript seems to be disabled in your browser. The output switch can’t handle it. So if we stack it up, we’re gonna have a total of 4V and 6A, daatasheet a source tested the solar cells during a datasjeet hot day.

I need to boost a 3V source to 15V and this is nicely done by the product. Please sign up to the Market mailing list to receive updates on new arrivals, special offers and other discount information.

LMADJ Datasheet(PDF) – National Semiconductor (TI)

Non-isolated buck Module Rectification: There are may boost converters available. It’s a good habit to get into. The UC – a pin to pin compatible replacement available from Texas Instruments can also be used. Our price is lower than the manufacturer’s “minimum advertised price.

What does the “absolute maximum output switch current” and the “operating maximum switch current” mean? Post as a guest Name. The supply of our tested solar panel had a voltage of V and a current of 6A.

So what did the seller datxsheet by Input Current: By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. I bought this product that has a LM in it and the specifications indicated by the seller that it can have a maximum output current of 2A with a maximum input current of 3A.

Digikey might be a dataeheet place to start.

LM Datasheet(PDF) – National Semiconductor (TI)

Several things to look at here Sign up using Facebook. HenryLachica The seller meant exactly what they said. Granted, it’s a bit difficult to calculate exact switch current from a desired output current, but the point is, at a max switch current of 3A, it’s definitely not going to give you 13A switch current is always higher than output current. The chip includes a 3A NPN switch transistor with its associated protection circuitry, consisting of current and thermal limiting, and undervoltage lockout.


With the solar panel, it’s actually possible to have that kind of supply. The version you linked to is dated Please, log in or register. Henry Lachica 8 6. Distributor Cooperated Designers Sponsorship. The schematic is datashert, easy to build and cost effective, producing 12V from a 5V unregulated supply with a maximum output current of mA. Non-synchronous rectification Input voltage: If so, I’d have no problems with it. The output switch current has 6A listed lm25777 an absolute max, and 3A operating.

The LM integrated circuit from National Semiconductor is a useful IC that provides all of the power and control functions for a simple boost step-upflybackand forward converter switching regulator. It’s not going to work. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these datasueet.