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? Many of the regulators require capacitance on the input and output to minimize oscillation.
Is ths just because of the load placed on it due to the lcd? Any ideas why is ln2940ct-5 working with the LMCT5?
I thought that the LMCT5 was better than thebut is not. Thank you for all the input.
Regards, -Bruce tech at rentron. I haven’t experienced it personally, but you could have an issue there that might result in datashewt. I like to put a led on the output for the minimum load, and to show, solidly, that power IS really on. Here’s a snip from p.
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Comments 10 Comments sorted by Date Added Votes. Hi Daniel, Just checked the datasheet http: It is essential that the output capacitor meet these requirements, or oscillations can result. Join Date Jul Posts 2, Hi All, I have a PIC application 16f88 and 2 leds ml2940ct-5 is working fine with a from National and a 6 volts 1 amper battery.
Groups is subject to http: The acceptable range of ESR plotted versus load current is shown in the graph below. Do you know about how much output current you have? Another data sheet says 0. Check datasheet for correct smoothing and decoupling capacitance values.
I have a 22uf cap between the output and ground as specified in the datasheet for stability. Another, does your LCD has backlights? Datazheet time now is Join Date Jan Posts Furthermore, hidden in the ap note the ones that I have seen is an admonition to have a minimum current load.
LM2940ct 5.0 gets HOT quick.
Members who have read this thread: Quick Links Categories Recent Discussions. I can’t find a schematic of it. Just in case, tried another one, nothing happened. If you aren’t running very much current, and dztasheet Vin isn’t too high, a small clip-on heat sink can significantly reduce the regulator’s temperature.
LMCT-5 Datasheet, PDF – Alldatasheet
The only things being powered in the circuit is the stamp and the LCD. Text datasheft the Subject and Body of the message will be ignored. The LM gets hot after a few min which isn’t nice. I cannot find out why is not working. I switched back to the and everything worked again!!! The burn your finger kind of hot. Photos – easier uploading and sharing.
Did you take steps to obtain caps with appropriate ESR? Thanks, John In basicstamps yahoogroups. Does it have a backlight? Sign In or Register to comment. Lm290ct-5 I use some other voltage regulator?