The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications . LM78L05 ELECTRICAL CHARACTERISTICS. (VI = 10V, IO = 40mA, 0°C ≤ TJ ≤ °C, CI = µF, CO = µF, unless otherwise specified. (Note 1). Part Number: LM78L05, Maunfacturer: National Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor.

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But I have doubts. Datasjeet INA will work down to 2. TL will add extra noise rejection. The output current of this IC can go up to mA. It’s funny now I think the question was about capacitors: In our case the 78L05 IC is an iconic regulator IC that finds its application in most of the projects. In that using a high current regulator like would be an ideal choice.

Program TL to 5V with say 2 x 10k resistors. A zener at the resistor midpoint clamps this to say 12V or some convenient value llm78l05 greatly reduces transients.

National Semiconductor

Simple shunt regulator with zener diode preregulator to greatly reduce spikes: I saw only those values in the datasheet, not higher. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30 mA. You don’t need -5V for the mini. These regulators also have the ability to limit l78l05 and protect when the temperature exceeds beyond junction temperature.


In practice Vzener will rise very slightly. Formal verification of safety-critical software, software development, and electronic design and prototyping.

LM78L05 Datasheet PDF – 5V, Positive Regulator – TI

But I’m not sure I can find a Go for that terafarad cap if you feel like it. Only ceramic caps are low in ESR,ceramics will reduce the ripple up ddatasheet the level that your bulk cap can handle. Rated reverse standoff voltage is always lower than breakdown voltage. A TVS is still a good idea though, since you’re working in an automotive environment.

LM78L05 from Texas Instruments

Resistors in series drop the 24 V to 5V. This is a 5V. Some of these unwanted voltages will appear across that resistance. The three terminals are Input, Output and ground as shown in the 78L05 pinout diagram. This is the scheme: TL — Programmable Reference Voltage.

This makes an immense difference. The datasheet says for ‘LM’ it’s 35vso your on the margin. Many of these are are specially designed for an automotive environment check spec sheet in each case and will survive in places where an LM will be destroyed or will protect your 5V powered circuit in situations where an LM would allow it to be destroyed.


Yaro Full Member Posts: Add a say 10 uF and 0.

,m78l05 The lower input voltage will allow you to choose a lower voltage TVS, however. It always takes longer than you expect, even when you take into account Hofstadter’s Law.

Submitted by webmaster on 14 December The 33V TVS isn’t good enough. LM data datashset here. So, LM78L05 needs bypassing for high frequencies, at most a 1uF? Bypass caps are often put individually across the power supply legs of individual integrated circuits or other components to try to trap these stray signals.