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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He is designed for local regulation on digital logic cards, eliminating the distribution problems. In addition, thermal shutdown is provided to keep the IC from overheating.

The available output current is greater than 1A. The Silicon diode hardly turns-on until you get 0.

All you really proved is that the legs are not broken-off. Making some random assumptions about the side of diodes in a ‘, I get a number like a few million Ohms.

Okay, well thanks very much for clarifying that! With a heat sink, the effective thermal resistance can only approach the values specified, depending on the efficiency of the sink. Transitors are simple incomplete functions and the pins have abstract names. Haha, okay, well that explains the weird readings then! The LMK is complete 5V regulator fabricated on datashdet single silicon chip. The published plan for ‘ is not so simple, and I can’t identify your 3K at a glance.

Your 3Meg to 20Meg numbers are close enough. They could still be a break inside the plastic– a barely-not-rejected batch of plastic might have millions-Ohm leakage between pin stubs.


Operating Junction Temperature Range. On some regs this is plain simple resistance, no diodes. The devices are available in the TO3 power package. With a heat sink, the effective thermal.

If you must test: Regulators are a specific complete function and the pin names make some sense. Note that the battery has to hold at least 7V into the part, because the minimum In-Out voltage is 1. The regs you buy may have 40 transistors to improve action and reduce abuse little transistor are incredibly cheap. Today they have simplified down to 3 pins, which datashfet they can use the same “frame” as power transistors.

Haha Datssheet are these readings what you’d expect to see from these components? 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. Current limiting is included to limit the peak output.

I understand wanting to test. A voltage regulator is several transistors working together. For the LMK Lm309m not sure which is which, the data sheets only shows input emitter? But a toaster, a radio, and a PC are all “boxes with wall-plugs”, yet not the same thing. It is not necessary to bypass the output, although this does improve transient. As a first approximation, the diode does not turn on at all, should read OL infinity. He is designed for local regulation on digital logic cards, eliminating the distribution problems associated with single-point regulation.

So here’s my question. Stability is also achieved by methods that provide very good rejection of load or line transients as are usually seen with TTL logic.


LM309K Datasheet PDF

The regulators are essentially blow-out proof. But you buy pre-made regulators so you do not have to think about these things. The first regs had 14 or 8 pins and may have needed an external transistor such as your 2N to handle big loads. Current limiting is included to limit the ,m309k output current to a safe value.

While PCs usually don’t have bread-slots, with transistors and regulators you gotta go by the part number. Now measure 5V from Out to Gnd. Thanks so much for your help!!!! If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating. Again, I’m new to all this, but it doesn’t seem right.

For these transistors, brand new from Jameco, do these ‘s look right? Considerable effort was expended to make these devices easy to use and minimize the number of external components.

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

Datasheet pdf – http: In fact the conductance at 0. Similar results with the LMK. It is not necessary to bypass the output, although this does improve transient response somewhat.

However there may be a few million Ohms of internal leakage in a large part. That was a Clue. If forward across a diode they read about half-scale on all ranges. In old days we used Needle Meters which worked from a 1.