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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Lm datasheet, lm pdf, lm data sheet, lm manual, lm pdf, lm, datenblatt, electronics lm, alldatasheet, free, datasheet, datasheets, data sheet. Fixed output voltage regulator required if the regulator is located far from the power supply filter.

Because if someone like you finds something wrong you are able to correct it. I’m still a little puzzled about why they specifically call out tantalum so much, but your answer makes clear that I can overlook this.

PDF LM340 Datasheet ( Hoja de datos )

ISC — —. Output 1 2 3 Heatsink surface is connected to Pin 2.

It is assumed from here on that lifetime has been properly designed for and is not an issue. Regulator instability, in my experience, and as datashete expect results in the regulator oscillating, with large level and often high frequency signal at the output and a DC voltage measured with a non-RMS meter that appears to be stable DC at an incorrect value. This series of devices can be used with a series—pass transistor to boost output current capability at the nominal output voltage.


I’d be pleased to hear anyone critique my reply on technical grounds. The only reason for choosing tantalum might be lifetime, and this can be datasheey for with aluminium wet electrolytic caps. This type of capacitor is not well-suited for low temperature operation. These three—terminal regulators employ internal current limiting, thermal shutdown, and safe—area compensation.

Output capacitor ESR required for stability: The 5v, 12v, and 15v regulator options datashewt available in the steel to3 power package. Depending on feedback parameters you might get low frequency oscillation, slow enough to see as variations on a “DC” meter and you might get more like MHz signals. If a uF cap behaved as a series-parallel combination containing a series combination of an ideal 0.

The ESR of the output capacitor will cause loop instability if it is too high or too low. Tantalums have a low ESR! A wet aluminum capacitor will meet this spec with ease.

Tantalum capacitors are completely unnecessary in this application. Lm datasheet, lm datasheets, lm pdf, lm circuit. This can be made much smaller than a discrete circuit made from independent.

LM datasheet (electronic components) search result | eet

Absolute maximum ratings are those values beyond which damage to the device may occur. If adequate heat sinking is provided, they can deliver over 1. Only slightly more complex – good Sueful – stack exchange.

If two capacitors are paralleled, the effective ESR is the parallel of the two individual values. Although designed primarily as datashee fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. Peter Mortensen 1, 3 14 Russell McMahon – Huh?


Sign up using Email and Password. Any increase of the output capacitance will merely improve the loop stability and transient response.

Ordering information heatsink surface connected to pin 2. Most capacitors don’t behave like a single cap in series with a single resistor, but rather as a huge network of interconnected resistors and capacitors.

LM340 Datasheet PDF

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. To provide loop stability they require an output capacitor which has both capacitance and ESR in selected ranges. Threeterminal positive fixed voltage regulators this dafasheet of fixed voltage regulators are monolithic integrated circuits capable of driving loads in excess of 1.

This family of fixed voltage regulators are monolithic integrated circuits. The lmalmlm78xxc monolithic series is available in the to plastic power package, and the lm The lmh and lmk may also be procured as jan devices on slash sheet jm BUT anything can happen. MattYoung And how long do you think that edit would last?

This requirement could be met by an aluminum wet electrolytic cap or a ceramic cap.

The following is what you may see in typical circumstances – actual results vary widely but this is a guide.