Part Number: LM78L12, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. VOLTAGE REGULATOR. LM78L TO Lead Plastic Package. 2. It is recommended that you completely review our Data Sheet(s) so as to. LM78L12 Linear Voltage Regulators are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for LM78L12 Linear Voltage Regulators.

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Of course there is no such thing, but some technologies, like ceramic, have low ESR with large enough values to be useful in this application. In that using a high current regulator like would be an ideal choice. By clicking “Post Your Answer”, you acknowledge that you have read datasehet updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Since these regulators protect themselves from output shorts, there is effectively no upper limit from the regulator’s point of view. The 78L05 is a three terminal voltage regulator.

Email Required, but never shown. Those values are really the recommended minimums.

LM78L12 datasheet, Pinout ,application circuits 3-Terminal Positive Regulators

From Texas Instruments llm78l12 What you quote doesn’t say what Co needs to be, only what value the rest of the specs are for. There’s no sense in trying to get closer than that. The three terminals are Input, Output and ground as shown in the 78L05 pinout diagram. As the TI datasheet says 0. These regulators also have the ability to limit current and protect when the temperature exceeds beyond junction temperature.


CI is ,m78l12 if regulator is located an appreciable distance from the power supply filter. You have to look elsewhere in the datasheet to find the min and max allowed values.

But, the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current. StainlessSteelRat 3, 6 So, if you are looking for a smaller package of voltage regulator that has small current rating in TO package then this IC might be the right choice. Submitted by webmaster on 14 December The Fairchild datasheet is limited to just data, with minimal application guidance.

If the energy released by the capacitor is large enough, this diode, low current metal, and the regulator are destroyed. But 1u already does the job of n.

Alternative Regulator for 78L From Texas Instruments datasheet:. Trevor I put 0. Without the protection diode, an input short causes the input to rapidly approach ground potential, while the output remains near the initial VOUT because of the stored charge in the large output capacitor.

The fast diode in Figure 15 shunts most of the capacitors discharge current around the regulator. They provide a constant output voltage for a varied input voltage. Complete Technical Details can be found datwsheet the 78L05 datasheet given at the end of this page. Do you have any idea about it? So you if connect high current dataseet then you can expect the IC to get very hot soon and shunt down eventually.

But another manufacturer Texas Instruments have different C1 recommendation on their datasheet which is 0. And here is the part from the manufacturer Fairchild see recommended C1 is 0. For C1, can I use these three caps in parallel as their sum is 0. The output current of this IC can datasheeet up to mA.


The regulated 5V can be obtained from the output pin if the IC.

78L05 Voltage Regulator Pinout, Features, Equivalent & Datasheet

Apart from using it as a voltage regulator it can also be used as a current regulator, dataaheet protector, booster circuit and even a variable voltage regulator. Sign up using Facebook.

LM and decoupling capacitor value Ask Question. Because the maximum current that this IC could supply is only upto mA.

LM78L12 Datasheet

LM voltage regulator is recommended to be used with decoupling capacitors at its input and output as in the below diagram: Ci can be as large as you want. In the circuit below a input voltage of 12V is regulated to 5V using the 78L Did I get you correct? The only real limitation is therefore the initial surge current as the output cap is charged up. Olin Lathrop k 30 Lm78o12 what if I use a single 0. You mean tantalum type? If I remember right your job to checkthe 78xx series regulators are stable with 0 ESR output caps.

It is very easy and straight forward to use this IC, just connect the input in to the input voltage which has to be regulated and the ground pin to system ground. Sign up using Email and Password. So you are free to pick appropriate capacitors for input and output to reduce ripple, noise, etc.

Paralelling is a datassheet less common these days since you can get some pretty large value ceramics nowadays.