Voltage Regulator IC Datasheet & Pinout. This IC is a member of 79xx series of fixed linear voltage regulator ICs. The voltage source in a circuit may have. PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card. L Datasheet, L PDF, L Data sheet, L manual, L pdf, L, datenblatt, Electronics L, alldatasheet, free, datasheet, Datasheets.

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Unfortunately, we could not get a sample to measure. Brief Description on Voltage Regulator Voltage regulators are very common in electronic circuits. Please enter a number less than or equal to Why do we need Negative Voltage Regulators?

Voltage regulators (stabilizers) 78xx and 79xx

No additional import charges on delivery. The marginal current 4mA corresponds to a 2k load.

As I have said at the beginning of this article, I believe this fault is significant enough that we should inform about it. Also they should be of ceramic type, since ceramic capacitors are dtaasheet than electrolytic.

However, components by other manufacturers behave differently. Place an order before 3pm and have it shipped the same day.


LM Negative Voltage Regulator Pinout, Specs, Circuit & Datasheet

Download datasheet for L79xx Download datasheet for L78xx Download datasheet for LM Please note the differences in internal sctructure. Two stabilizers were used for comparison. After their advice we have tested whether this problem can be caused by oscillating of the stabilizer. Of course, the output voltage may fluctuate; however, it can’t be four times the nominal output voltage.

The ST stabilizer is clearly distinct. There is no such information in L79xx datasheets see picture way above. The comparison is only an example what a developer can buy in an electronics components store.

International postage and import charges paid to Pitney Bowes Inc. See the seller’s listing for full details.

The fact that we found this fault in ST parts only does not signify that other manufacturers’ ICs are free from it. So, keep this possibility in mind when designing your own applications. Add to Watch list Watching Watch list is full. The items this applies to are clearly marked in the postage table.

There are 60 items available. However, we think it necessary to inform our readers about fundamental faults and errors of electronics components datashet can cost a lot of time. Conclusion is, that oscillations are not ratasheet cause of our overvoltage problem. Figure shows the dependencies of the output voltage on the input voltage for datasbeet L, TAS, KA; both with and without a 1k load.


Values listed below were measured using a nF capacitor. We will be glad to publish a response from the manufacturer, as well as readers’ comments to this issue.

Here, minimum load current is specified: The TAS is interesting too – it has the same fault. Well, I bought a new L by ST. After a closer examination, I have found V at its reference input, instead of expected -8V. If ST really does use such an internal structure, the problem is most likely caused by unsuitable values of resistors around the 6.

Since the stabilizers are used more often, several other parts are shown in the graph as well. For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab.