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LM2940CT-5 DATASHEET PDF

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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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Did you take steps to obtain caps with appropriate ESR? Your use of Yahoo!

LMct gets HOT quick. — Parallax Forums

I believe the data sheets show a 0. Quick Links Categories Recent Discussions. Check datasheet for correct smoothing and decoupling capacitance values.

Hello, All I have is a cap between the output and ground at 22uf. I cannot find out why is not working. Also, remember the more voltage you have to drop and the more current you want to pull, the hotter the device will run. Basic Stamp List Subject: Here’s a snip from p.

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I can’t find a schematic of it. Check your caps, it might be leaky. I couldn’t find a datasheet for the LMCT5, but, some LDO types require specific capacitor values on the output or they will datawheet, and that causes major problems.

Does it have a backlight? I tried with another LMCT5 and got the same result. I switched back to the and everything worked again!!! My input is 9V, I’m using the power supply that came with the P40 demo board. Text in the Subject and Body of the message will be ignored. The burn your finger kind of hot. Groups is subject to http: I measure the input and the output and seemed ok. The acceptable range lm2940xt-5 ESR plotted versus load current is shown in the graph below.

Hi Daniel, Just checked the datasheet http: Comments 10 Comments sorted by Date Added Votes. It is essential that the output capacitor meet these requirements, or oscillations can result. Larger values of output capacitance will give improved transient response. The power in Watts being dissipated within the regulator is the voltage drop across the regulator times the current passing through it.

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Similar Threads Program works fine alone but not as part of a larger program. I will try it with the additional cap.

LM2940CT-5 PDF Datasheet浏览和下载

Do you know about how much output current you have? 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 datxsheet.

Regards, -Bruce tech at rentron. I found a data sheet on the LM, and it looks like you need at least 22uF on the output, and drop-out will be around 0.

Should I use some other voltage regulator? Thank you for all the input.

works fine, LMCT5 not!

Another data sheet says 0. The only things being powered in the circuit is the stamp and the LCD.

Bob Edit oops Bruce has just giving this info.