LM2577S DATASHEET PDF

The LM/LM are monolithic integrated circuits that provide all of the power and data sheet are a family of standard inductors and flyback transformers. Part Number: LM, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. LMS-ADJ datasheet, LMS-ADJ pdf, LMS-ADJ data sheet, datasheet, data sheet, pdf, National Semiconductor, SIMPLE SWITCHER Step- Up.

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Sign up using Facebook. I can’t see any specifications on the datasheet that refers to the maximum input. Even if the switch was up to it, the 3V source would have to supply over 20A.

I’ve seen and looked into it. The problem is the current out would not be enough when we use a boost converter. If so, I’d have no problems with it. It’s just making life harder. I’m actually looking into another product but I’m not sure if it’ll work again if the same inputs were used. Question on LM Ask Question. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

You can simply remove the item from your cart. This is your maximum input current. Only registered users can write reviews.

There are may boost converters available. Crowtail- Base Shield for Pyboard. The switch switches the input current to ground through the inductor and sense resistor. So what did the seller mean by Input Current: I tried scanning through the datasheet and I fail to see its maximum input current. If it isn’t possible to actually do it dattasheet this product, what are my other alternatives?

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LM2577 DC-DC Step Up Adjustable PSU Module

Digikey might be a good place to start. Please, log in or register. Non-synchronous rectification Input voltage: Please sign up to the Market mailing list to receive updates on new arrivals, special offers and other discount information Subscribe. 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 ln2577s maximum input current of 3A.

The source is actually a solar panel.

LM2577-12.0 Boost Converter Overview

The LM series of regulators are monolithic integrated circuits that provide all the active functions for a step-up buck switching regulator, capable of driving a 3A load withexcellent line and load regulation. Several things to look at here There isn’t a product in the world that will make that possible.

Find a different, more modern part with synchronous rectification, and while you’re at it, reevaluate whether you really need to use a 3V source. I need to boost a 3V source to 15V and this is nicely done by the product.

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. HenryLachica The seller meant exactly what they said. Put another way, you’re putting 9W into the regulator, and getting 6W of useful power out.

We will use solar panels so that would do it.

LMS-ADJ Datasheet(PDF) – National Semiconductor (TI)

JavaScript seems to be disabled in your browser. It’s a good habit to get into. I only get 0.

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TI released a revised version in April What I actually need: That is pretty abysmal efficiency for a modern SMPS, but not outside of reasonable for the LM25xx era, and as much of a boost as you’re trying to get. But the current isn’t the same because I datashee about 2. What you’re wanting lm22577s physically not possible.

There is a very good chance that ” is a Chinese counterfeit so the chip specs may be different from the TI part, dqtasheet the board specs are probably on the optimistic side. 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, datasehet definitely not going to give you 13A switch current is always higher than output current.

If you’re trying to get 15V at 3A, this part is not going to do it. 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.

The maximum switch current is exactly that: With the solar panel, it’s actually possible to have that kind of supply. Enter your destination to get a shipping estimate.

See Matt Young’s answer above. First, always get your datasheet straight from the manufacturer. My Cart – 0 item.

Power is conserved, and you lose a datasueet or more than a bit of power to the regulator i. This is how a basic boost regulator works. You may also like.