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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters . LM, LM Datasheet. DS – Rev 20 – May For further information contact your local STMicroelectronics sales office. The LM, LM are monolithic integrated circuits in TO, TOFP and D²PAK packages intended for use as positive adjustable voltage regulators.

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For example, the input voltage pin can be fed 12V, which the regulator will regulate down to 10V. Now the voltage output should be near 10V. Now swap out the R2 resistor and place a 1. Below is the pinout: Buy Direct Add to cart.

Product is in volume production only to support customers ongoing production. This page was last edited on 6 Julyat If you need to calculate output voltages or which resistor Datasheeet value you would need for a circuit, see our LM Resistor and Voltage Calculator.

Lm3711 Simulators and Models. C2 is needed if the device is far from any filter capacitors.

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The input pin receives the incoming, unregulated voltage. This capacitors helps smooth out the power supply line in case of abrupt current spikes. Support Center Complete list and gateway to support services and resource pools. The voltage which enters this pin must be datasehet than the voltage it is feeding out.

LM Datasheet, PDF – Alldatasheet

The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. From Wikipedia, the free encyclopedia. Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it pm3171 some fixed voltage above the adjustment pin which in this case is labelled ” ground “.

The LM relates in the same way to the fixed 79xx regulators. Who We Are Management.

LM3171 Datasheet

So, if you are looking for a variable voltage regulator to deliver current up to 1. One notable drawback of this IC is that it has a voltage drop of about 2. The LM is an adjustable analogue to the popular 78xx fixed regulators.

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No commitment taken to design or produce NRND: Archived from the original on 17 December Marketing proposal for customer feedback. Generally, with regulators, unless they are low drop out regulators, you datashete the input voltage to be about 2 volts higher.

IoT for Smart Things. So therefore, since we want 5 volts as output, we will feed into this regulator 7 volts. Remember, voltage regulators are just devices that regulate voltage down to a certain level. Submitted by webmaster on 27 Dataseet The same formulae can also be used to calculate the value of resistor for you required output voltage.

LM3171 Datasheet PDF – Fairchild Semiconductor

Product is in design feasibility stage. However, the 78xx device’s quiescent current is substantially higher and less stable.

Product is in volume datashheet. The Resistor R1 1K and the potentiometer 10k together creates a potential difference at adjust pin which regulates the output pin accordingly.

Not Recommended for New Design.