PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card. Linear Voltage Regulators are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Linear Voltage Regulators. Texas Instruments LM Linear Voltage Regulators are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Texas Instruments .

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Unless you are signed in to a HubPages account, all personally identifiable information is anonymized. Voltage fluctuations may damage or reduce the life of circuit components. This is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. The circuit diagram for those can be found at the datasheet given at the end of this page.

This is used to collect data on traffic to articles and other pages on our site. The capacitor C 2 is required for stability. In order to improve stability two capacitors — C 1 and C 2 are used.

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LM Pinout, Features, Equivalents & Datasheet

IC 79xx requires heat sink for its safe operation. This website uses cookies As a user in the EEA, your approval is needed on a few things.

A very basic Voltage regulator circuit is shown below. The pin 1 acts as the Ground terminal 0V. We may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.


It is a small integrated circuit used in a circuit to supply a constant negative input voltage.

Other product and company names shown may be trademarks of their respective xatasheet. Submitted by webmaster on 23 November Complete Technical Details can be found at the datasheet given at the end of this page. This is feature allows you to search the site. HubPages and Hubbers authors may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others. This is used to identify particular browsers or devices when the access the service, and is used for darasheet reasons.

This is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. The number 79 indicates that it is a negative voltage regulator and xx indicates the output voltage of the IC. Voltage regulator IC can be defined as an integrated circuit that is capable of supplying a constant controlled output voltage which is not at all affected by the variations in input voltage provided that the variations are within the prescribed limits under specified atmospheric conditions.

IC 79xx (7905, 7912, 7915, 7918) – Negative Voltage Regulator

The value of the capacitors need not be the exact values, you can use the closest value you have got. Questions must be on-topic, written with proper grammar usage, and understandable to a wide audience. Values given may be increased without datasheet. But the value varies up on manufacturers. Thank you for following me. In both cases will be an ideal choice when you need a negative 12V.


To provide a better website experience, turbofuture. This is used to prevent bots and spam. The maximum value of input voltage that the IC can withstand is 24 volts. Heat sink boosts heat dissipation therefore the life of the device can be extended.

Hence, I have interchanged the polarity of the battery. Similarly if it isthen output voltage of the IC is volts and so on. Available in TO package only. No data is shared with Facebook unless you engage with this feature. IC 79xx is a three pin negative voltage controller IC. The capacitor C 1 is used only if the regulator is separated from filter capacitor by more than 3″. Kindly refer the item datasheets for further details. The output current of this IC is upto 1A, however with appropriate heat sink the datasheet says that a ratasheet current of 2.

Pin out Configuration of IC 79xx. This is used to detect comment spam.