LM2940CT-5 DATASHEET PDF

LMCT/NOPB Texas Instruments LDO Voltage Regulators 1A LDO REG datasheet, inventory, & pricing. 1A LDO REG. Datasheet: . Documents (5). Low drop-out voltage regulator. Order code. Manufacturer code. Description. LMCT LMCT-5 1A REGULATOR (RC). LMCT-5 -. The LM/LMC positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically V and a .

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Furthermore, hidden in the ap note the ones that I have seen is an admonition to have a minimum current load.

LM2940CT-5 PDF Datasheet浏览和下载

Keep datasjeet mind the adapter you have may be putting out more than 9 volts, or may not have a very clean output, both of which will make the regulator get hot.

I will try it with the additional cap. Do you know about how much output current you have? Did you take steps to obtain caps with appropriate ESR? Your use of Yahoo! I haven’t experienced it personally, but datashert could have an issue there that might result in overheating.

datasheft I believe the data sheets show a 0. I cannot find out why is not working. If too little or none they can oscillate which may not show on your meter?

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LM2940ct 5.0 gets HOT quick.

Otherwise the output impedance is too high and it oscillates. The time now is The acceptable range of ESR plotted versus load current is shown in the graph below. Members who have read this thread: I tried with another LMCT5 and got the same result. Larger values of output capacitance will give improved transient response. Join Date Jul Posts 2, Basic Stamp List Subject: I couldn’t find a datasheet for the LMCT5, but, some LDO types require specific capacitor values on the output or they will oscillate, and that causes major problems.

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I can’t find a schematic of it. Groups is subject to http: Similar Threads Program works fine alone but not as part of a larger program. Any ideas why is not working with the LMCT5? Should I use some other voltage regulator? Just in case, tried another one, nothing happened. Join Date Jan Posts It is essential that the output capacitor meet these requirements, or oscillations can result.

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LMCT-5 (ETC) PDF技术资料下载 LMCT-5 供应信息 IC Datasheet 数据表 (6/17 页)

Hello, All I have is a cap between the output and ground at 22uf. Hi All, I have a PIC application 16f88 and 2 leds that is working fine with a from National and a 6 volts 1 amper battery. Hi Daniel, Just checked the datasheet http: Check datasheet for correct smoothing and decoupling capacitance values. Typically, LCD displays take very little, but I’m not familiar with the unit you’re using.

Thank you for all the input. The power in Watts being dissipated within the regulator is the voltage drop across the regulator times the current passing through it.

It’s interesting that mine gets this hot when I have seen schematics using the same setup, with a 10uf cap even. Another data sheet says 0. Quick Links Categories Recent Lm9240ct-5.

That would work alright. I like to put a led daasheet the output for the minimum load, and to show, solidly, that power IS really on.

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