Texas Instruments LM3940IT-3.3/NOPB

Enrgtech Part No: ET11786532
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Manufacturer Part No:
LM3940IT-3.3/NOPB
|
Manufacturer: Texas Instruments

LM3940IT-3-3-NOPB Texas Instruments LM3940IT-3.3/NOPB

Product Information

Polarity:

Positive

Number of Outputs:

Load Regulation:

50 mV

Dimensions:

10.16 x 4.7 x 8.89mm

Mounting Type:

Through Hole

Maximum Operating Temperature:

+125 °C

Regulator Type:

Low Dropout Voltage

Output Type:

Fixed

Height:

8.89mm

Width:

4.7mm

Length:

10.16mm

Output Voltage:

3.3 V

Checking for live stock

The LM3940IT-3.3/NOPB from Texas Instruments is a robust, low-dropout (LDO) linear regulator designed to convert a 5V input to a stable 3.3V output efficiently, capable of delivering up to 1A of current. Its minimal external component requirement, built-in thermal and short-circuit protection, and precise output specification across varying temperatures make it an ideal choice for mixed-voltage logic systems and embedded designs. Whether you're powering 3.3 V microcontrollers from a 5 V bus or streamlining circuit design, the LM3940 provides reliable performance in a compact TO-220 package.

What Benefits Do You Get?

When selecting the LM3940IT 3.3, you unlock several key advantages:

High efficiency with low dropout allows for stable 3.3 V regulation even when the input voltage dips to approximately 4.5 V.
Full load performance up to 1 A without requiring an external heatsink (in TO 220), supporting compact and cost effective designs.
Significantly reduces design complexity with just one external component needed streamlining board space and development time.
Built in thermal and short circuit protection safeguards the regulator and downstream circuits, enhancing system reliability.
Consistent output voltage over a wide operational temperature range (from –40 °C to +125 °C), ensuring dependable performance in harsh environments.

Product Functional Highlights:

Requires only one external component for stable operation
Excellent load regulation
Built-in thermal protection
Short-circuit protection
Fixed 3.3 V output specified across temperature
Operates reliably between –40 °C and +125 °C
Available in TO-220-3 (through-hole) package (also in DDPAK/TO-263 surface-mount)
Minimal dropout voltage holds regulation even with low input margins.

ESD Control Selection Guide V1(Technical Reference)

Mult Devices 12/Apr/2018(PCN Assembly/Origin)

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