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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The three terminals are Input, Output and ground as shown in the 78L05 pinout diagram.

Email Required, but never shown. And here is the part from the manufacturer Fairchild see recommended C1 is 0. Post Your Om78l12 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. Apart from using it as a voltage regulator it can also be used as a current regulator, short-circuit protector, booster circuit and even a variable voltage regulator.

But, the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current. If I remember right your job to checkthe 78xx series regulators are stable with 0 ESR output caps.

LM78L12 Datasheet PDF – Bay Linear

The fast diode in Figure 15 shunts most of the lm778l12 discharge current around the regulator. You mean tantalum type? 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. But what if I use a single 0. The Fairchild datasheet is limited to just data, with minimal application guidance. How to use 78L So you if connect high current loads then you can expect the IC to get very hot soon and shunt down eventually.


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Of course there is no such thing, but some technologies, lm778l12 ceramic, have low ESR with large enough values to be useful in this application. Trevor Oh never thought of it. You see them in parallel because different cap types have different high frequency characteristics. Submitted by webmaster on 14 December Also note the Capacitors C1 and C2 are used at both the Input and output end. I’m not sure those are exactly recommended values. These regulators also have the ability to limit current and protect when the temperature exceeds beyond junction temperature.

It really does not matter much. LM voltage regulator is recommended to be used with decoupling capacitors at its input and output as in the below diagram:. So you are free to pick appropriate capacitors for input and output to reduce ripple, noise, etc.

(PDF) LM78L12 Datasheet download

But 1u already does the job of n. There’s no sense in trying to get closer than that.


Sign up using Email and Password. CI is required if regulator is located an appreciable distance from the power supply filter. LM and decoupling capacitor value Ask Question. If the device is more than six inches from the input filter capacitors, an input bypass capacitor, 0. 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.

LM78L12 NTE Equivalent NTE IC-POS VR 12V MA – Wholesale Electronics

The regulated 5V can be obtained from the output datasjeet if the IC. In the circuit below a input voltage of 12V is regulated to 5V using the 78L Although all the circuits in Fairchild data sheet show 0. Paralelling is a little less common these days since you can get some pretty large value ceramics nowadays.

Ci can be as large as you want. Sign up using Facebook. LM voltage regulator is recommended to be used with decoupling capacitors at its input and output as in the below diagram: Alternative Regulator for 78L Sign up or log in Sign up using Google.