Product Summary

The LM3940IS-3.3 is a high-performance 1A Low Dropout Regulator for 5V to 3.3V Conversion.

Parametrics

LM3940IS-3.3 Parametrics:

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
Dynamic Catalog 3.1V to 3.3V
Other Names LM3940IS33

Features

LM3940IS-3.3 Features:

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

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM3940IS-3.3
LM3940IS-3.3

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-45: $0.93
45-135: $0.85
135-270: $0.76
270-540: $0.65
LM3940IS-3.3/NOPB
LM3940IS-3.3/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators 1A LDO REG

Data Sheet

0-1: $1.07
1-25: $0.86
25-100: $0.78
100-250: $0.69