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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There’s no sense in trying to get closer than that.

In fact, the lower the better. You mean tantalum type? Although all the circuits in Fairchild data sheet show 0. The Fairchild datasheet is limited to just data, with minimal application guidance.

CI is required if regulator is located an appreciable distance from the datashedt supply filter. A 0 impedance input voltage isn’t going to hurt the regulator. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand datasjeet Terms of Service.

Home Questions Tags Users Unanswered. But 1u already does the job of n. It really does not matter much. Sign up using Facebook. I’d go with the application information as indicated by the TI datasheet.

Because the maximum current that this IC could supply is only upto mA. The only real limitation is therefore the initial surge current as the output cap is charged up.

Trevor Dqtasheet never thought of it. Trevor I put 0. StainlessSteelRat 3, 6 From Texas Instruments datasheet:.


78L05 Voltage Regulator Pinout, Features, Equivalent & Datasheet

I have two questions: Olin Lathrop k 30 Did I get lm788l12 correct? Rather those are what THEY had on hand to build the test circuit with and tabulate the numbers. Sign up using Email and Password.

They provide a constant output voltage for a varied input voltage.

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

What you quote doesn’t say what Co needs to be, only what value the rest of the specs are for. No, I mean caps with 0 ESR. Another thing I never understood sometimes they put datasheft caps for power rails in parallel like 1u and n ect. Since these regulators protect themselves from output shorts, there is effectively no upper limit from the regulator’s point of view. So you if connect high current loads then you can expect the IC to get very hot soon and shunt down eventually.

For C1, can I use these three caps in parallel as their sum is datasgeet. LM voltage regulator satasheet recommended to be used with decoupling capacitors at its input and output as in the below diagram:.

LM78L12 Datasheet

Email Required, but never shown. How to use 78L You have to look elsewhere in the datasheet to find the min and max allowed values. 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. LM voltage regulator is recommended to be used with decoupling capacitors at its input and output as in the datasueet diagram: Those values are really the recommended minimums.


If needed, use 0.

The output current of this IC can go up to mA. But another manufacturer Texas Instruments have different C1 recommendation on their datasheet which is 0. If the energy released by the capacitor is large enough, this diode, low current metal, and the regulator are destroyed.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Complete Technical Details can be found at the 78L05 datasheet given at the end of this page. Alternative Regulator for 78L 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 the circuit below a input voltage of 12V is regulated to 5V using the 78L TL — Programmable Reference Voltage. The 78L05 is a three terminal voltage regulator.


Paralelling is a little less common these days since you can get some pretty large value ceramics nowadays. These regulators also have the ability to limit current and protect when the temperature exceeds beyond junction temperature.

You see them in parallel because different cap types have different high frequency characteristics.

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