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LM3940 - 1A Low Dropout Regulator

Description

The LM3940 is a 1A low dropout regulator designed to provide 3.3V from a 5V supply.

The LM3940 is ideally suited for systems which contain both 5V and 3.3V logic, with prime power provided from a 5V bus.

Features

  • n n n n n n Output voltage specified over temperature Excellent load regulation Guaranteed 1A output current Requires only one external component Built-in protection against excess temperature Short circuit protected.

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Datasheet preview – LM3940

Datasheet Details

Part number LM3940
Manufacturer National Semiconductor
File Size 315.14 KB
Description 1A Low Dropout Regulator
Datasheet download datasheet LM3940 Datasheet
Additional preview pages of the LM3940 datasheet.

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www.DataSheet4U.com LM3940 1A Low Dropout Regulator for 5V to 3.3V Conversion May 1999 LM3940 1A Low Dropout Regulator for 5V to 3.3V Conversion General Description The LM3940 is a 1A low dropout regulator designed to provide 3.3V from a 5V supply. The LM3940 is ideally suited for systems which contain both 5V and 3.3V logic, with prime power provided from a 5V bus. Because the LM3940 is a true low dropout regulator, it can hold its 3.3V output in regulation with input voltages as low as 4.5V. The T0-220 package of the LM3940 means that in most applications the full 1A of load current can be delivered without using an additional heatsink.
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