LM338 DATASHEET PDF

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

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. The dropout voltage of the IC regulator is about 1. Solid tantalum capacitors can be used on the voltage output to improve the ripple rejection of the voltage regulator.

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

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

National Semiconductor

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

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Created 28 July Although the surge is very short in duration, there is enough energy to damage parts of the regulator IC. Last update 6 January Even small capacitors can have a low enough internal series resistance to be able to deliver 20A spikes when shorted.

LM317 / LM338 / LM350 Voltage Regulator Calculator

See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. Although the surge is very short in duration, there is enough energy to damage datashee of the regulator IC. Plan to be about 3V about the desired output voltage.

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. 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. The adjustment terminal of the regulator can be bypassed to achieve very high ripple rejection.

Please update your bookmarks. Please update your bookmarks. However, other values such as or ohms can also be used for R 1.

LM / LM / LM Voltage Regulator Calculator and Circuits

Where greater output dstasheet is required, the LM series regulators are suitable up to 3A and the LM series voltage regulators for up to 5A of output. When external capacitors are used with a voltage regulator it l,338 be necessary to use protection diodes to prevent the capacitors from discharging through low current points into the voltage regulator. See the voltage regulator datasheets above for specific details regarding the dropout voltage and heatsink requirements. The LM voltage regulators can provide up to 1.

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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 vatasheet 6 inches from the input filter capacitors in which case an input bypass capacitor is required. No protection diodes are required for output voltages of less than 25V or greater than 10 uF capacitance. An optional output capacitor can be added to improve transient response.

However, other values such as or ohms can also be used for R 1. To determine the output voltage, enter datashwet for the program R 1 and set R 2 resistors and hit the “Calculate” button.

The dropout voltage of the IC regulator is about 1. Plan to be about 3V about the desired output voltage. The LM voltage regulators can provide up to 1. Created 28 July 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.