DATASHEET LM338K PDF

LM/LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of. LMK Datasheet, LMK 5A Adjustable Positive Voltage Regulator Datasheet, buy LMK. LM LM 5-Amp Adjustable Regulators. General Description. The LM series of adjustable 3-terminal positive voltage regulators is capable of.

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National Semiconductor

The dropout voltage of the IC regulator is about 1. Plan to be about 3V about the desired output voltage.

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. 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.

Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection datasheeh the voltage regulator.

Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. 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. An optional output capacitor can be added to datqsheet transient response.

LM317 / LM338 / LM350 Voltage Regulator Calculator

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. 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. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance.

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However, other values such as or ohms can also be used for R 1. Last update 6 January The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection. Last update 6 January Please update your bookmarks. Created 28 July Where greater output current is required, the LM series regulators are suitable up to 3A and the LM series voltage regulators lj338k up to 5A of output.

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LMK Datasheet(PDF) – STMicroelectronics

Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. Plan to be about lm338j about the desired output voltage. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. The dropout voltage of the IC regulator is about 1.

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. Created 28 July To determine the output voltage, enter datashewt for the program R 1 and set R 2 resistors and hit the “Calculate” button.

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The LM voltage regulators can provide up to 1. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.

You don’t want to use too high an input voltage as the excess will need llm338k be dissipated as heat through the regulator. The LM voltage regulators can provide up to 1. An optional output capacitor can be added to improve transient response.

To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection.

No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. 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.

Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator. However, other values such as or ohms can also be used for R 1.