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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This is your maximum input current.

If it isn’t possible to actually do it with this product, what are my other alternatives? 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. We would be able to datashdet 0.

Enter your destination to get a shipping estimate. While unlikely here, there could have been changes made, and you wouldn’t know. I have a hard time fully understanding the datasheet of LM The chip includes a 3A NPN switch transistor with its associated protection circuitry, consisting of current and thermal limiting, and undervoltage lockout.

The supply of our tested solar panel had a voltage of V and a current of 6A. Ddatasheet values of ESR can be achieved by using larger value capacitors or by paralleling multiple smaller-value capacitors.

Adjustable DC-DC Booster- LM2577

If so, I’d have no problems with it. The maximum switch current is exactly that: It’s not going to work. These solar cells need to go inside a solar charger controller that’s why we need to boost it datasheet 12V. The part from Pulse has the following specifications: I’m actually looking into another product but I’m not sure if it’ll work again if the same inputs were used.


You have no obligation to purchase the product once you know the price. 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. Please sign up to the Market mailing list to receive updates on new arrivals, special offers and other discount information Subscribe.

I’m trying to work around it. The LM is available in different packages: There are may boost converters available. 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. What you’re wanting is physically not possible. If you want 15V 2. I can’t see any specifications on the datasheet that refers to the maximum input.

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

This module uses the adjustable output version, it would facilitate your application and be your good assistant in your debugging. What I actually need: The design uses the adjustable version of LM, but the 12V fixed-voltage version LMT will also work if you remove R1 and R2 and connect the feedback pin directly to the regulator’s output.

The problem is the current out would not be enough when we use a boost converter. There is a very good chance 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.


LM Datasheet pdf – Series SIMPLE SWITCHER Step-Up Voltage Regulator – National Semiconductor

The output switch can’t handle it. I need to boost a 3V source to 15V and this is nicely done by the product. HenryLachica The seller meant exactly what they said.

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Post as a guest Name. 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 dattasheet a maximum input current of 3A.

This is how a basic boost regulator works. Sign up using Email and Password.

You may also like. What does the “absolute maximum output switch current” and the “operating maximum switch current” mean? The other pm2577 is wasted as heat.

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. You must have JavaScript enabled dayasheet your browser to utilize the functionality of this website. Non-isolated buck Module Rectification: To see why, let’s take a look at the datasheet again. Our price is lower than the manufacturer’s “minimum advertised price. TI released a revised version in April It’s lm277 making life harder. With the solar panel, it’s actually possible to have that kind of supply.