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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If too little or none they can oscillate which may not show on your meter? Thank you for all the datwsheet. Any ideas why is not working with the LMCT5? It is essential that the output capacitor meet datsaheet requirements, or oscillations can result. Hello, All I have is a cap between the output and ground at 22uf. Let us know if this solves the problem? That would work alright. The LM gets hot after a few min which isn’t nice.

Larger values of output capacitance will give improved transient response. Hi Daniel, Just checked the datasheet http: Groups is subject to http: Photos – easier uploading and sharing. Results 1 to 5 of 5.

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LM2940ct 5.0 gets HOT quick.

Furthermore, hidden lm2940vt-5 the ap note the ones that I have seen is an admonition to have a minimum current load. Thanks, John In basicstamps yahoogroups. Your use of Yahoo! I have a 22uf cap between the output and ground as specified in the datasheet for stability. Check datasheet for correct smoothing and decoupling capacitance values.

Just in case, tried another one, nothing happened. I believe the data sheets show a 0. Comments 10 Comments sorted by Date Added Votes. Do you know about how much output current you have? Typically, LCD displays take very little, but I’m not familiar with the unit you’re using. Bob Edit oops Bruce has just giving this info.

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

Friday, December 05, Hi John, What is the input voltage to the regulator — can you measure it? The power in Watts being dissipated within the regulator is the voltage drop across the regulator times the current passing through it. The acceptable range of ESR plotted versus load current is shown in the graph below.

Another data sheet says 0. Also, remember the more voltage you have to drop and the more current you want to pull, the hotter the device will run. Sign In or Register to comment.

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Many of the regulators require capacitance on the input and output to minimize oscillation. If you aren’t running very much current, and your Vin isn’t too datashewt, a small clip-on heat sink can significantly reduce the regulator’s temperature. Should I use some other voltage regulator? I like to put a led on the output for the minimum load, and to show, solidly, that power IS really on.

I thought that the LMCT5 was better than thebut is not. Is ths just because of the load placed on it due to the lcd?

Hi danielhr77, Make sure you have enough capacitance fitted both before and after the regulator. Did you take steps to obtain caps with appropriate ESR?

What are the caps on the BS2P40 demo board? Text in the Subject and Body of the message will be ignored.

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