LM309K DATASHEET PDF

The LMK is complete 5V regulator fabricated on a single silicon chip. The available output current is greater than 1A. He is designed for. Order Number LMK STEEL or LMK STEEL. See NS Package Number K02A. Order Number LMK See NS Package Number K02C. 2. LMK STEEL/NOPB – Fixed LDO Voltage Regulator, V to 35V, 3mV. Add to compare. Image is Technical Datasheet: LMK STEEL/NOPB Datasheet.

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And this still does not prove that your ‘ can carry the BIG current that you paid the big bucks for. Current limiting is included to limit the peak output. It is not necessary to bypass the output, although om309k does improve transient.

The devices are available in the TO3 power package. The regulators are essentially blow-out proof. The first regs had 14 or 8 pins and may have needed an external transistor such as your 2N to handle big loads. Wiring errors always exceed parts problems.

Today we use digital meters which mostly only use 0. Today they have simplified down to 3 pins, which means they can use the same “frame” as power transistors. Again, I’m new to all this, but it doesn’t seem right. I’m testing them to make sure I’ve got the correct pinout and they work properly. I understand wanting to test. If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating.

Operating Junction Temperature Range. Considerable effort was expended to make these devices easy to use and minimize the number of.

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LM309K PDF Datasheet浏览和下载

All you really proved is that the legs are not broken-off. He is designed for local regulation on digital logic cards, eliminating the distribution problems associated with single-point regulation.

In fact the conductance at 0. Making some random assumptions about the side of diodes in a ‘, I get a number like a few million Ohms. This is “too small for real work” but can be detected by many meters. However you bought from a very reputable source, reputable chips have defect rates below 1 in a million, you can just assume the parts are good until you wire them up and check ALL other possible errors.

LMK STEEL Datasheet pdf – 5-Volt Regulator – National Semiconductor

When you study regulators you will find a couple of resistors out-to-ground. Current limiting is included to limit the peak output current to a safe value.

Ln309k there may be a few million Ohms of internal leakage in a large part.

So here’s my question. The LMK is complete 5V regulator fabricated on a single silicon chip. Datasheet pdf – http: They could still be a break inside the plastic– a barely-not-rejected batch of plastic might have millions-Ohm leakage between pin stubs.

If you must test: I ordered several transistors for each model and they all behave the same way, which leads me to believe they are “right” Dataeheet forward across datwsheet diode they read about half-scale on all ranges.

Regulators are a specific complete function and the pin names make some sense. It is not necessary to bypass the output, although this does improve transient response somewhat.

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Haha, okay, well that explains the weird readings then! But you buy pre-made regulators so you do not have to think about these things.

LM309K – LM309 5V 1A Voltage Regulator Datasheet

Considerable effort was expended to make these devices easy to use and minimize the number of external components. In old days we used Needle Meters which worked from a 1.

But a toaster, a radio, and a PC are all “boxes with wall-plugs”, yet not the same thing. Stability is also achieved by methods that provide very good. In addition, thermal shutdown is provided to keep the IC from overheating. The available output current is greater than 1A. Haha So are these readings what you’d expect to see from these components?

With dwtasheet heat sink, the effective thermal resistance can only approach the values specified, depending on the efficiency of the sink. Your 3Meg to 20Meg numbers are close enough. Similar results with the LMK. Tekay Member Halmstad-Sweden Posts: As a first approximation, the diode does not turn on at all, should read OL infinity.

Transitors are simple incomplete functions and the pins have abstract names. A simple reg would include a voltage reference Zenera small transistor to compare that reference to the output voltage, and a big transistor to pass the correct amount of power through. He is designed for local regulation on digital logic cards, eliminating the distribution problems.

Okay, well thanks very much for clarifying that!