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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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. This is how a basic boost regulator works. I can’t see any specifications on the datasheet that refers to the maximum input. Datashee buck Module Rectification: Please sign up to the Market mailing list to receive updates on new arrivals, special offers and other discount information. Because it is a boost converter and you can’t break physics.

It’s not going to work. Several things to look at here What I actually need: 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.

Post as a guest Datashret. TI released a revised version in April While unlikely here, there could have been changes made, and you wouldn’t know.

What you’re wanting is physically not possible. You can design and make your own inductor using a suitable core recuperated from old equipment if you have the knowledge, practical experience and equipment for this task. To see why, let’s take a look at the datasheet l2577. If so, I’d have no problems with it. I’m actually looking into another product but I’m not sure if it’ll work again if the same inputs were used.


components – Question on LM – Electrical Engineering Stack Exchange

There is a very good datasueet that ” is a Chinese counterfeit so the chip specs may be different from the TI part, and the board specs are probably on the optimistic side. The schematic is simple, easy to build and cost effective, producing 12V from a 5V unregulated supply with a maximum output current of mA. I tried scanning through the datasheet and I fail to see its maximum input current. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie datwsheetand that your continued use of the website is subject to these policies.

So if we stack it up, we’re gonna have a total of 4V catasheet 6A, as a source tested the solar cells during a very hot day. 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. Email Required, but never shown.

5V to 12 V Step-Up (Boost) Voltage Regulator with LM

Sign up or log in Sign up using Google. There are may boost converters available.


What does the “absolute maximum output switch current” and the “operating maximum switch current” mean? The next question is can the LM handle more than 3A?

With the solar panel, it’s actually possible to have that kind of supply. There isn’t a product in the world that will make that possible. It’s just making life harder.

Adjustable DC-DC Booster- LM2577

Okay, that I understand. The version dwtasheet linked to is dated Finally, let’s do a sanity check with the data you provided. The chip includes a 3A NPN switch transistor with its associated protection circuitry, consisting of current and thermal limiting, and undervoltage lockout. You may also like. First, always get your datasheet straight from the manufacturer.

Even if the switch was up to it, the 3V source would have to supply lm277 20A. Sign up using Email and Password. We will use solar panels so that would do it.

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 policies. If the IC is located far from the supply source filter capacitors, an additional larger electrolytic capacitor e.