Part Number: LM, Maunfacturer: Fairchild Semiconductor, Part Family: LM, File type: PDF, Document: Datasheet – semiconductor. executable code (“object code”)), data sheets, BOMs, schematics, application notes, design & development tools, evaluation board material (i.e. BOM, Gerber, . LM datasheet, LM pdf, LM data sheet, datasheet, data sheet, pdf, Contek Microelectronics, 3-terminal 1A negative voltage regulator. Output.

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In other projects Wikimedia Commons. Meaning it will provide a constant output voltage of V when the input voltage is between The value of the capacitors need not be the exact values, you can use the closest value you have got.

LM 7912 CT

Industrial Electronics and Control. These devices support an input voltage anywhere from daasheet 2. Retrieved from ” https: You can also check on 78 series for positive voltage datasneet. The 78xx line are positive voltage regulators: LM Applications Constant V output regulator to use as power or reference voltage for analog and digital circuits. Cool Projects for Open Source Hardware. Some devices provide slightly different voltages than usual, such as the LM78L62 6.

The negative output voltage is obtained from the Vo 3rd Pin which is also read using a Multimeter.

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LM7912 Datasheet

TL — Programmable Reference Voltage. A very basic Voltage regulator circuit is shown below. Available in TO package only. There are many other ways in which the IC can be used based on your application. It is a component in switching regulator designs and is not a linear regulator like other 78xx devices.

LM Pinout, Features, Equivalents & Datasheet

The LM78S40 from Fairchild datashewt not part of the 78xx family and does not use the same design. The 78xx family is commonly used in electronic circuits requiring a regulated power supply due to their ease-of-use and low cost.

Hence, I have interchanged the polarity of the battery. LM belongs to the family of Voltage regulators. When you are designing an analog circuitthe circuit might need negative voltage either as a power source or as a reference voltage. This page was last edited on 5 Decemberat Submitted by webmaster on 23 November There is a related line of 79xx devices which are complementary negative voltage regulators.

Encyclopedia of Electronic Components Volume 1: I have used a Battery to power the IC, but you can use any power source but notice that the datasheeet voltage should be negative.

Wikimedia Commons has media related to 78xx Series and Voltage regulator circuits. By using this site, you agree to the Terms of Use and Privacy Policy.

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Mastering the Raspberry Pi. The circuit diagram for those can be found at the datasheet given at the end of this page. Views Read Edit View history. In both cases will be an ideal choice when you need a negative 12V.

This article needs additional citations for verification. The SR from Datel is a full switching power supply module designed as a drop-in replacement for 78xx chipsand not a linear regulator like the 78xx ICs. Please help improve this article by adding citations to reliable sources. Complete Technical Details can be found datasueet the datasheet given at the end of this page.

The output llm7912 of this IC is upto 1A, however with appropriate heat sink the datasheet says that a peak current of 2. For the years, see 8th millennium.

The Input and output capacitors C1 10uF and C2 1uF are used to filter noise from the input and the output voltage respectively. Unsourced material may be challenged and removed. The is the most common, as its regulated dagasheet supply provides a convenient power source for most TTL components.