The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input. The LM78XX series of three terminal regulators is available with several fixed output voltages making them useful in a wide range of applications One of these is. C Datasheet PDF Download – 3 Terminal Positive Voltage Regulator, C data sheet.

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Have a look at a typical datasheet and see the data related to the “quiescent current”. This IC can also act as an adjustable output voltage regulator, meaning you can also control the output voltage for your desired value using the below circuit.

Post as a guest Name. But, the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current.

Email Required, but never shown. 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. This will help the LM maintain a stable output voltage even with changes in load. Complete Technical Details can be found at the datasheet give at the end of this page. I know there should be voltage and current drop from the voltage regulator but my question is why current drops off?


LM Voltage Regulator Datasheet. This is a typical application circuit of daatsheet IC. This 7 Watts will be dissipated as heat. TL — Programmable Reference Voltage. The input capacitor 0. Also they should be of ceramic type, since ceramic capacitors are faster than electrolytic.

I understand your voltage divider is to limit U1 Vin to 25 volts. Here, the input voltage can be anywhere between 9VV, and the output voltage can be adjusted using the value of resistance R1 and R2.

In our case the IC is an iconic regulator IC that finds its application in most of the projects. The is a voltage regulator providing a 5V output, it needs some current datashewt operate.

They provide a constant output voltage for a varied input voltage. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policy datwsheet, and that your continued use of the website is subject to these policies. Home Questions Tags Users Unanswered. Submitted by admin on 30 August By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

This will stabilize the input and output voltage’s. Why c Voltage regulator drops the current if the current enters around 13mA to 7mA? So turn to the datasheet datawheet, and you’ll find these: We just need two capacitors of vale 33uf and 0.


C Datasheet American pdf data sheet FREE from

Sign up using Email and Password. To help even more replace R1 with 2 each 12 volt 5W zener diodes in series to lock the voltage at 24 VDC at pin 1 of U1. That is the current that flows from the input out of the GND pin the input current is the sum of the output current and the GND current. Voltage regulators are very common in electronic circuits.

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Sign up or log in Sign up using Google. The output current of this IC can go up to 1. Spehro Pefhany k 4 Sign up using Facebook. The maximum GND current is 8. These capacitors should be placed close to the terminals for them to work effectively. Datasheft 11k 2 15 The value can be calculated using the below formulae.