LM/LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. LM LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. The LM is rated for −55˚C ≤ TJ ≤ +˚C, and the LM is rated for .. Reproduction of TI information in TI data books or data sheets is permissible only if.
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The device is more sensitive to the absence of input bypassing when adjustment or output capacitors lm338k used byt the above values will eliminate the possibility of problems. The adjustment terminal can be bypassed to ground on the LM to improve ripple rejection. Opto-isolator wikipedialookup. Ceramic capacitors are also good at high frequencies, but some types have a large decrease dataeheet capacitance at frequencies around 0.
Voltage regulator wikipedialookup.
Careful circuit design has resulted in outstanding load and line regulation comparable to many commercial power supplies. Rectifier wikipedialookup.
For this reason, 0. However, other values such as or ohms can also be used for R 1. Also included on the chip are thermal overload protection and safe area protection for dtasheet power transistor. Buck converter wikipedialookup.
Where greater output current is required, the LM series regulators are suitable up to 3A and the LM series voltage regulators for up to 5A of output. This occurs with values between pF and pF. Switched-mode power supply wikipedialookup.
Electrical ballast wikipedialookup. See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements.
Tube sound wikipedialookup. The LM datashet regulators can provide up to 1. If the bypass capacitor is used, it is sometimes necessary to include protection diodes to prevent the capacitor from discharging through internal low current paths and damaging the device.
When an output capacitor is connected to a regulator and the input is shorted, the output capacitor will discharge into the output of the regulator. Thermal runaway wikipedialookup. Overload protection remains functional even if the adjustment pin is accidentally disconnected. Current source wikipedialookup. Stray voltage wikipedialookup.
Please update your bookmarks. Control system wikipedialookup. The discharge current depends on the value of the capacitor, the output voltage of the regulator, and the rate of decrease of VI.
The current limit circuitry allows peak currents of up to 12A to be drawn from the regulator for short periods of time. Power inverter wikipedialookup.
LMK Datasheet(PDF) – National Semiconductor (TI)
Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. Ohm’s law wikipedialookup. Regulator with Protection Diodes. The adjustment terminal of the regulator can datashdet bypassed to achieve very high ripple rejection.
In general, the best type of capacitors to use are solid tantalum. An input bypass capacitor is recommended. Voltage optimisation wikipedialookup.
Distribution management system wikipedialookup. With the TO-3 package, it is easy to minimize the resistance from the case to the set resistor, by using 2 separate leads to the case. The lm338m voltage of the IC regulator is about 1.
This is not true of other types of positive regulators. Schmitt trigger wikipedialookup.
The LM family is supplied in a standard 3-lead transistor package. To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button. This publication supersedes and replaces all information previously supplied.
LMK Datasheet(PDF) – STMicroelectronics
Last update 6 January Under sustained loading conditions, the current limit decreases to a safe value protecting the regulator. If there is insufficient load on the output, the output will rise. Changes in output voltage due to heating effects are taken into account separately by thermal rejection.