LM–XX. Input. Cin*. µF. CO**. Output. 1. MOTOROLA ANALOG IC DEVICE DATA. Three-Terminal Positive. Fixed Voltage Regulators. This family of fixed. the LM is available in the SOT package, as well .. †The specifications for the LMH/ devices are not contained in this datasheet. Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are the property of their respective.

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LM(TO-3) NTE Equivalent NTEK VOLTAGE REGULATOR PO – Wholesale Electronics

If needed, use a 0. If I’ve missed something or made a significantly incorrect technical assertion then by all means say.

Why does the LM data sheet specifically specify tantalum capacitors? Russell McMahon – Huh? What exactly would happen? I’d be pleased to ,m340 anyone critique my reply on technical grounds.


Tantalum capacitors are completely datawheet in this application. The lmh and lmk may also be procured as jan devices on slash sheet jm They say in the LM datasheet. With the price of tantalum these days I would recommend using one of your electrolytics with a small ceramic capacitor in parallel – say nF.

The input capacitor is a typical reservoir capacitor, its value is relatively non critical. Lots of related pictures. Because if someone like you finds something wrong you are able to correct it.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Average Temperature Coefficient of Output Voltage. Output capacitance required for stability: Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents.

National Semiconductor

Pm340 pdf, lm description, lm datasheets, lm view. The first group are capacitors that might be used in practice in this application at the low end of the capacitance range.

The output capacitor is critical in maintaining regulator stability, and must meet the required conditions for both minimum amount of capacitance and ESR Equivalent Series Resistance. In this case the peers are scattered all over the internet. Only datasneet more complex – good Sueful – stack exchange.


Could it be that tantalums typically have a higher ESR than electrolytic? I wasn’t criticising you – sorry if it seemed that way.

I meant to comment on Jon’s query why they would spec tantalum given the apparent lack of need for it. Would the output oscillate with high ripple or be undefined? It’s adequate to say that the feedback from output to input does not reinforce oscillation and that a resistance that is too large or too small may lead to dagasheet overall reinforcement when considered as part of the overall system. MattYoung And how long do you think that edit would last?

Thank you for the extremely detailed and helpful answer. The overall feedback is described by a transfer function involving the components involved. Higher capacitances are also stable. Sign up using Facebook. Meeting these conditions is essential for stability under all load conditions.

An integrated circuit or monolithic integrated circuit also referred to as an ic, a chip, or a microchip is a set of electronic circuits on one small plate chip of semiconductor material, normally silicon.