LM–XX. Input. Cin*. µF. CO**. Output. 1. MOTOROLA ANALOG IC DEVICE DATA. Three-Terminal Positive. Fixed Voltage Regulators. This family of fixed. the LM is available in the SOT package, as well .. †The specifications for the LMH/ devices are not contained in this datasheet. Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are the property of their respective.
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LM340 Datasheet PDF
Why does the LM data sheet specifically specify tantalum capacitors? No normal filter cap would tolerate this without impaired functionality. Would the output oscillate with high ripple or be undefined? The 5v, 12v, and 15v regulator options are available in the steel to3 power package.
An important notice at the end of this data sheet addresses availability, warranty, changes, use in safetycritical applications, intellectual property matters.
Look at the output with an oscilloscope and you may see an eg kHz semi sine wave of ‘s of mV to some Volts of amplitude on a nominal 5VDC output. Post as a guest Name.
LM datasheet (electronic components) search result | eet
Its principal role daasheet to provide loop stability for the regulator. There are various factors and cost is one. Could it be that tantalums typically have a higher ESR than electrolytic? Tantalum is an OK choice but is not the best choice.
Although designed primarily as a fixed voltage regulator, these devices. The LM datasheet dahasheet clear guidance on the essential and desirable characteristics of the input and output capacitors. With the price of tantalum these days I would recommend using one of your electrolytics with a small ceramic capacitor in parallel – say nF. Sign up using Email and Password.
Series 3-Terminal Positive Regulators
MattYoung And how long do you think that edit would last? If needed, use a 0. Lm datasheet, lm pdf, pinouts, circuit texas. Would the output oscillate with high ripple or be undefined or what exactly would happen?
This series of devices can be used with a series—pass transistor to. Meeting these conditions is essential for stability under all load conditions. It’s adequate to say that the feedback from output to input does not reinforce oscillation and that a resistance that is too large or too small may lead datasyeet an overall reinforcement when considered as part of the overall system.
A common ground is required between the input and. Lm pdf, lm description, lm datasheets, lm view.
I’d be pleased to hear anyone critique my reply on technical grounds. Why are they so specific about using tantalum capacitors?
LM datasheet & applicatoin notes – Datasheet Archive
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The output capacitor is “safe” against spikes in most cases.
It is possible to connect a small datashret in parallel to a large electrolytic if cost is an issue. The active regulator can work to reduce this ripple, but it is nice to not have your filter capacitor adding to the problem you want it to fix. I wasn’t criticising you – sorry if it seemed that way. See detailed ordering and shipping information in the package dimensions section on page 16 dataheet this data sheet. It’s clear that they do not expect high ripple currents and that the capacitor’s role is primarily related to loop stability than to noise control per se.
Threeterminal positive fixed voltage regulators this family of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 1. Tantalum capacitors are completely unnecessary in this application.
MattYoung Actually yes, it is. Lots of related pictures. Output capacitor ESR required for stability: