LM338 DATASHEET PDF

The LM/LM/LM are adjustable 3-terminal positive voltage regulators capable of supplying in excess of 5A over a V to 32V output range. They are. The LM, LM, LM are adjustable 3- terminal positive voltage regulators capable of supplying in excess of 5 A over a V to 32 V output range. LM LM – 5 Amp Adjustable Regulator, Package: TO-3, Pin Nb=3. The LM series of adjustable 3-terminal positive voltage regulators is capable of.

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The dropout voltage of the IC regulator is about 1. To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” button.

LM317 / LM338 / LM350 Voltage Regulator Calculator

The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection. The LM voltage regulators can provide up l3m38 1. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.

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.

Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted. Datasheet external capacitors are used with a voltage regulator it may be necessary to use protection diodes to prevent the capacitors datashheet discharging through low current points into the voltage regulator. Please update your bookmarks.

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Last update 6 January See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements.

LM / LM / LM Voltage Regulator Calculator and Circuits

No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.

An optional output capacitor can be added to improve transient response. Plan to be about 3V about the desired output voltage. Plan to be about 3V about the desired output voltage.

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. You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator. Satasheet dropout voltage of the IC regulator is about 1. Please update your bookmarks.

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. Created 28 July See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements.

Although the surge is very l3m38 in duration, there is enough energy to damage parts of the regulator IC. Created 28 July An optional output capacitor can be added to improve transient response.

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National Semiconductor

Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. However, other values such as or ohms can also be used for R 1. 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.

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. The LM voltage regulators can provide up to 1.

Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. However, other values such as or ohms can also be used for R 1. Normally, no capacitors are needed unless the device is situated more than mm 6 catasheet from the input filter capacitors in which case an input bypass capacitor is required. Last update 6 January You don’t want to use too high an input voltage as the excess will need to be dissipated as heat through the regulator.

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