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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A voltage regulator is lm3099k transistors working together. Note that the battery has to hold at least 7V into the part, because the minimum In-Out voltage is 1. Stability is also achieved by methods that provide very good rejection of load or line transients as are usually seen with TTL logic. Haha So are these readings what you’d expect to see from these components?

LMK (NSC) PDF技术资料下载 LMK 供应信息 IC Datasheet 数据表 (1/8 页)

Thanks so much for your help!!!! Your 3Meg to 20Meg numbers are close enough. This divides the output to the same voltage as the internal reference. This is “too small for real work” but can be detected by many meters.

Current limiting lm30k included to limit the peak output. If you must test: The first regs had 14 or 8 pins and may have needed an external transistor such as your 2N to handle big loads.


While PCs usually don’t have bread-slots, with transistors and regulators you gotta go by the part number. Wiring errors always exceed parts problems. For these transistors, brand new from Jameco, do these ‘s look right? The available output current is greater than 1A. However there may be a few million Ohms of internal leakage in a large part.

If internal dissipation becomes too great, the regulator will shut down to prevent ln309k heating.

When you study regulators you will find a couple of resistors out-to-ground. Get the polarity right!!

LMK NTE Equivalent NTEK VOLTAGE REGULATOR PO – Wholesale Electronics

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 dahasheet until you wire them up and check ALL other possible errors.

Making some random assumptions about the side of diodes in a ‘, I get a number like a few million Ohms. So here’s my question.

Okay, well thanks very much for clarifying that! November 19, In addition, thermal shutdown is provided to keep the IC from overheating.

Dataxheet forward across a diode they read about half-scale on all ranges. Operating Junction Temperature Range. Regulators are a specific complete function and the pin names make some sense. Similar results with the LMK. Transitors are simple incomplete functions and the pins have abstract names. Honestly I’m not sure how to tell from the data sheet. L309k pdf – http: Now measure 5V from Out to Gnd. With a heat sink, the effective thermal resistance can only approach the values specified, depending on the efficiency of the sink.


Input bypassing is needed, however, if the regulator is located very far from the. The datasyeet are essentially blow-out proof. That was a Clue. As a first approximation, the diode does not turn on at all, should read OL infinity.

LM309K PDF Datasheet浏览和下载

Current limiting is included to limit the peak output current to a safe value. But you buy pre-made regulators so you do not have to think about these things. In fact the conductance at 0. He is dataaheet for local regulation on digital logic cards, eliminating the distribution problems associated with single-point regulation. Haha, okay, well that explains the weird readings then! It is not necessary to bypass the output, although this does improve transient. Today we use digital meters which mostly only use 0.

All you really proved is that the legs are not broken-off. The Silicon diode hardly turns-on until you get 0. They could still be a break inside the plastic– a barely-not-rejected batch of plastic might have millions-Ohm leakage between pin stubs. Is this right for this transistor???