Texas Instruments LM3940IMPX-3.3/NOPB IC REG LINEAR 3.3V 1A SOT223-4

Categories Integrated Circuits (ICs)
PMIC - Voltage Regulators - Linear
Manufacturer Texas Instruments
Series-
Packaging Cut Tape (CT)
Part Status Active
Output ConfigurationPositive
Output Type Fixed
Number of Regulators 1
Voltage - Input (Max) 7.5V
Voltage - Output (Min/Fixed) 3.3V
Voltage - Output (Max)-
Voltage Dropout (Max) 0.2V @ 100mA
Current - Output 1A
PSRR-
Control Features-
Protection Features Over Temperature, Short Circuit
Operating Temperature-40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-261-4, TO-261AA
Supplier Device PackageS OT-223-4

Base Part Number LM3940

The internal current limit circuit is used to protect the LDO against high-load current faults or shorting events. During a current-limit event, the LDO sources constant current. Therefore, the output voltage falls when load impedance decreases. Note also that if a current limit occurs and the resulting output voltage is low, excessive power may be dissipated across the LDO, resulting in a thermal shutdown of the output.

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