Product Summary

Product No LM3940ISX-3.3
Design Resources Create your power design now with TI’s WEBENCH? Designer
Standard Package 45
Category Integrated Circuits (ICs)
Family PMIC - Voltage Regulators - Linear (LDO)
Series -
Packaging Tube
Regulator Topology Positive Fixed
Voltage - Output 3.3V
Current - Output 1A
Voltage - Dropout (Typical) 0.5V @ 1A
Number of Regulators 1
Voltage - Input Up to 7.5V
Current - Limit (Min) -
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case TO-263-4, D2Pak (3 Leads + Tab), TO-263AA
Supplier Device Package DDPAK/TO-263-3

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM3940ISX-3.3
LM3940ISX-3.3
National Semiconductor (TI)
Low Dropout (LDO) Regulators
Data Sheet
0-500: $0.50
500-1000: $0.50
1000-2500: $0.47
2500-5000: $0.45
LM3940ISX-3.3/NOPB
LM3940ISX-3.3/NOPB
National Semiconductor (TI)
Low Dropout (LDO) Regulators 1A LDO REG
Data Sheet
0-1: $1.32
1-25: $1.06
25-100: $0.95
100-250: $0.85
250-500: $0.61