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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Depending on feedback parameters you might get low frequency oscillation, slow enough to see as variations on a “DC” meter and you might get more like MHz signals. Its principal role is to provide loop stability for the regulator. Most capacitors don’t behave like a datashete cap in series with a single resistor, but rather as a huge network of interconnected resistors and capacitors. If two capacitors are paralleled, the effective ESR is the parallel of the two individual values.

These three—terminal regulators employ internal current limiting, thermal shutdown, and safe—area compensation. And one final note, did you refer to the ripple voltage on the cap being large even for small currents as an inherent issue due to the small size?

Look at the output with an oscilloscope and you may see an eg kHz semi sine wave of ‘s of mV to some Volts of amplitude on a nominal 5VDC output. In this case the peers are scattered all over the internet. Jon Bright 2 3 9. To provide loop stability they require an output capacitor which has both capacitance and ESR in selected ranges. Datasheet ds rev 20 may for further information contact your local stmicroelectronics sales office.


Could it be catasheet tantalums typically have a higher ESR than electrolytic? This series of devices can be used with a series—pass transistor to boost output current capability at the nominal output voltage. XX these two digits of the type number indicate voltage.

The input voltage must remain. Only slightly more complex – good Sueful – stack exchange.

Lm340 datasheet pdf storage

I’ve read this so many times – “maintain regular stability”. The input voltage must remain typically 1. Absolute maximum ratings are those values beyond which damage to the device may occur. This can be made much smaller than a discrete circuit made from datasehet. See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet.

LM datasheet, Pinout ,application circuits Series 3-Terminal Positive Regulators

The ESR of the output capacitor should range between 0. It’s called “peer review”, and it’s basically what all the scientific papers go through.

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LM datasheet & applicatoin notes – Datasheet Archive

The lmalmlm78xxc monolithic series is available in the to plastic power package, and the lm A spike more than a small fraction above a tantalum capacitor’s rated value risks it’s total destruction in a high energy circuit, such daasheet this one is.

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Output capacitor ESR required for stability: If adequate heat sinking is provided, they can deliver over 1. Home Questions Tags Users Unanswered. The input capacitor is at risk from “bad behavior” from other datasgeet of the system.

Tantalum offers OK cost per capability at capacitances from about 10 uF up. Sign up using Facebook.