LM2940CT-5 DATASHEET PDF

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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I measure the input and the output and seemed ok. The LM gets hot after a few min which isn’t nice. It is essential that the output capacitor meet these requirements, or oscillations can result. The ESR of the output lm2940tc-5 will cause loop instability if it is too high or too low. Check datasheet for correct smoothing and decoupling capacitance values.

Let us know if this solves the problem? Members who have read this thread: I have a 22uf cap between the output and ground as specified in the datasheet for stability.

Larger values of output capacitance will give improved transient response. Hi John, What is the input voltage to the regulator — can you measure dataxheet I haven’t experienced it personally, but you could have an issue there that might result in overheating.

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Thank you for all the input. Results 1 to 5 of 5.

Your use of Yahoo! Any ideas why is not working with the LMCT5? Similar Threads Program works fine alone but not as part of a larger program.

LM2940CT-5 PDF Datasheet浏览和下载

Photos – easier uploading and sharing. Text in the Subject and Body of the message will be ignored. Is ths just because of the load placed on it due to vatasheet lcd?

Should I use some other voltage regulator? Bob Edit oops Bruce has just giving this info. The only things being powered in the circuit is the stamp and the LCD.

Sign In or Register to comment. Also, remember the more voltage you have to drop and the more current you want to pull, the hotter the device will run.

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

Do you know about how much output current you have? The time now is If you aren’t running very much current, and your Vin isn’t too high, a small clip-on heat sink can significantly reduce the regulator’s temperature. Join Date Jul Posts 2, Just datashset case, tried another one, nothing happened. Friday, December 05, Join Date Jan Posts It’s interesting that mine gets this hot when Lm2940ct5- have seen schematics using the same setup, with a 10uf cap even. Comments 10 Comments sorted by Date Added Votes.

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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. Groups is subject to http: If too little or none they can oscillate which may not show on your meter? I tried with another LMCT5 and got the same result. Furthermore, hidden in the ap note the ones that I have seen is an admonition to have a minimum current load.

Does it have a backlight?