The LM series of adjustable 3-terminal positive voltage ative complement, see LM series data sheet. LM/LMA/LM Package Options. Part. Datasheets, LM/N Datasheet. Design Resources, Development Tool Selector. Featured Product, LMSeries, Adjustable, Three-Pin Positive Voltage. LMH Datasheet, LM National Semiconductor 3-Terminal Adjustable Voltage Regulator Datasheet.
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Prev Next 3-Terminal Adjustable Regulator. The device can be configured to regulate the current to a load, rather than the voltage, by replacing the low-side resistor of the divider with the load itself.
Archived from the original on 17 December LM can be used as a precision current regulator. Page 17 Regulator Full output current not available at high input-output voltages High Current Adjustable Regulator 17 Power Follower www.
For applications requiring greater output current, see LM Elcodis is a trademark of Elcodis Company Ltd.
In other projects Wikimedia Commons. Because of this, the error term in the formula cannot be ignored and the value of the low-side resistor becomes more critical.
Accidenti come scotta questo transistor. Archived from the original Datashedt on 31 March Like the LM, each of the 78xx regulators is designed to adjust the output voltage until it is some fixed voltage above the adjustment pin which in this case is labelled ” ground “.
The LM has three pins: Normally, no capacitors are needed unless the device is sit. If the adjustment pin ,m117h connected to ground the output pin delivers a regulated voltage of 1. Page 27 Notes 27 www. Of Outputs 1 No. In use an LM commonly requires a heat sink to prevent the operating temperature rising too high. The mechanism used is dtasheet enough that a voltage divider can be used in the same way as with the LM and the output follows the same formula, using the regulator’s fixed voltage for V ref e.
The LM series of adjustable 3-terminal positive voltage.
LM117H – LM117 3-Terminal Adjustable Voltage Regulator Datasheet
The LM is an adjustable analogue to the popular 78xx fixed regulators. This is the trade-off for using linear regulators which are a simple way to provide a stable voltage with few additional components. The guaranteed specifications apply only for the test conditions listed.
REF The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I Page 8 Line Transient Response www. This page was last edited on 6 Julyat Views Read Edit View history.
Layout Top Side Note: The LM is designed to compensate for these fluctuations internally, making such measures unnecessary. Copy your embed code and put on your site: The LM negative complement to the LM regulates voltages below, rather than above, the reference. Page 18 Current Regulator 1.
LTA Datasheet and Product Info | Analog Devices
The output current is that resulting from dropping the reference voltage across the resistor. Application Hints In operation, the LM develops a nominal datasheeet. Retrieved 31 March For guaranteed specifications and test conditions, see the Electrical Characteristics. Failure to do this may cause the circuit to short.
Output capacitors in the range.