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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National Semiconductor – datasheet pdf

The LM family is supplied in a standard 3-lead transistor package. Integrating ADC wikipedialookup. For this reason, 0.

Regulator with Protection Diodes. Solid tantalum capacitors have low impedance even at high frequencies. When an output capacitor is connected to a regulator and the input is shorted, the datashet capacitor will discharge into the output of the regulator.

The dropout datzsheet of the IC regulator is about 1. Control system wikipedialookup. To do this, all quiescent operating current is returned to the output establishing a minimum load current requirement. Voltage regulator wikipedialookup.

Mains electricity wikipedialookup. The current limit circuitry allows peak currents of datashet to 12A to be drawn from the regulator for short periods of time.

The device is more sensitive to the dztasheet of input bypassing when adjustment or output capacitors are used byt the above values will eliminate the possibility of problems. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.


Power inverter wikipedialookup. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. Besides replacing fixed regulators or discrete designs, the LM is useful in a wide variety of other applications.

The adjustment terminal can be bypassed to ground on the LM to improve ripple rejection.

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Surge protector wikipedialookup. Solar micro-inverter wikipedialookup. The discharge current depends on the value of the capacitor, the output voltage of the regulator, and the rate of decrease of VI. However, other values such as or ohms can also ddatasheet used for R 1. When external capacitors are used with a voltage regulator it may be necessary to use protection diodes to prevent the capacitors from discharging through low current points into the voltage regulator.

An optional output capacitor can be added to improve transient response. Thank you for your participation! This publication supersedes and replaces all information previously supplied.

Normally, no capacitors are needed unless the device is situated more than mm 6 inches from the input filter capacitors in which case an input bypass capacitor is required. Changes in output voltage due to heating effects are datashheet into account separately by thermal rejection.

LMK Datasheet(PDF) – National Semiconductor (TI)

Also included on the chip are thermal overload protection and safe area protection for the power transistor. Transistor wikipedialookup. Ceramic capacitors are also good datashest high frequencies, but some types have a large decrease datassheet capacitance at frequencies around 0.


This eliminates line drops from appearing effectively in series with the reference and degrading regulation. An input bypass capacitor is recommended. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.

LM317 / LM338 / LM350 Voltage Regulator Calculator

Stray voltage wikipedialookup. Created 28 July Regulator with Line Resistance in Output Lead.

Since the regulator is “floating” and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to input differential is not exceeded. Current mirror wikipedia datasheft, lookup. Please update your bookmarks. If there is insufficient km338k on the output, the output will rise.

Distribution management system wikipedialookup. Regulation is measured at constant junction temperature. Thermal runaway wikipedialookup. Although the LM is stable with no output capacitors, like any feedback circuit, certain values of external capacitance can cause excessive ringing. Rectifier wikipedialookup.

National Semiconductor

An optional output capacitor can be added to improve transient response. Variable-frequency drive wikipediadatashset. Last update 6 January Plan to be about 3V about the desired output voltage. Switched-mode power supply wikipedialookup.

Resistive opto-isolator wikipedialookup. The LM voltage regulators can provide up to 1.