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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With a heat sink, the effective thermal resistance can only approach the values specified, depending on the efficiency of the sink.

I’m testing them to make sure I’ve got the correct pinout and they work properly. The LMK is complete 5V regulator fabricated on a single silicon chip. Transitors are simple incomplete functions and the pins have abstract names. Haha, okay, well that explains the weird readings then! Tekay Member Halmstad-Sweden Posts: For these transistors, brand new from Jameco, do these ‘s look right?

In addition, thermal shutdown is provided to keep the IC from overheating. Making some random assumptions about the side of om309k in a ‘, I get a number like a few million Ohms. He is designed for local regulation on digital logic cards, eliminating the distribution problems associated with single-point regulation.

In old days we used Needle Meters which worked from a 1. A voltage regulator is several transistors working together.


LM309K Datasheet PDF

So here’s my question. While PCs usually don’t have bread-slots, with transistors and regulators you gotta go by the part number.

Get the polarity right!! Regulators are a specific complete function and the pin names make some sense. Input bypassing is l3m09k, however, if the regulator is located very far from the filter capacitor of the power supply. This is “too small for real work” but can be detected by many meters. The regulators are essentially blow-out proof.

November 19, Current limiting is included to limit the peak output current to a safe value. The lm09k are available in the TO3 power package.

In fact the lm309m at 0. As a first approximation, the diode does not turn on at all, should read OL infinity. On some regs this is plain simple resistance, no diodes. For the LMK I’m not sure which is which, the data sheets only shows input emitter?

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. But a toaster, a radio, and a PC are all “boxes with wall-plugs”, yet not the same thing. I ordered several transistors for each model and they all behave the same way, which leads me to believe they are “right” Input bypassing is needed, however, if the regulator is located very far from the.

Operating Junction Temperature Range. Again, I’m new to all this, but it doesn’t seem right. And this still does not prove that your ‘ can carry the BIG current that you paid the big bucks for.


Haha So are these readings what you’d expect to see from these components? Honestly I’m not sure how to tell from the data sheet.

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

All you really proved is that the legs are not broken-off. The Silicon diode hardly turns-on until you get 0. The published plan for ‘ is not so simple, and I can’t identify your 3K at llm309k glance. Today we use digital meters which mostly only use 0. Current limiting is included to limit the peak output. 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: With a heat sink, the effective thermal. Okay, well thanks very much for clarifying that!

The regs you buy may have 40 transistors to improve action and reduce abuse little transistor are incredibly cheap. I’m going to research what the hell voltage regulators are and how they work so I don’t make a similar mistake datasneet the road. It is not necessary to bypass the output, although this does improve transient response somewhat.