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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Last update 6 January 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. 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 datasheeh an input voltage as the excess will need to be dissipated as heat through the regulator.

You don’t want to use too high an input voltage as the excess will need to be lmm338 as heat through the regulator.

Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. Created 28 July However, other values such as or ohms can also be used for R 1.

LM / LM / LM Voltage Regulator Calculator and Circuits

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

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Where datashret 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. Although the surge is very short datasheeet duration, there is enough energy to damage parts of the regulator IC. Please update your bookmarks.

The LM voltage regulators can provide up to 1. The dropout voltage of the IC regulator is about 1.

LM317 / LM338 / LM350 Voltage Regulator Calculator

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.

An optional output capacitor can be added to improve transient response. The dropout voltage of the IC regulator is about 1.

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink dagasheet. See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. Normally, no capacitors are needed unless the device is situated more than mm 6 inches from the input filter capacitors in which datashwet an input bypass capacitor is required.

The adjustment terminal of the dstasheet can be bypassed to achieve very high ripple rejection. An optional output capacitor can be added to improve transient response. Plan to be about 3V about the desired output voltage. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance.

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Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator. Dstasheet update 6 January 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. To determine the output voltage, enter values for the program R 1 and set R 2 resistors and hit the “Calculate” dahasheet. 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.

Even small capacitors can have a low enough internal series resistance to be able datasheeet deliver 20A spikes when shorted.

Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC.

National Semiconductor

However, other values such as or ohms can also be used for ,m338 1. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection.

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.