• LM3940IS-3.3/NOPB

Product Images are shown for illustrative purposes only and may differ from actual product.

LM3940IS-3.3/NOPB

  • Stock: 31

    Availability: InStock priceValidUntil: 2026-01-28

  • SKU: 7069 | DAG696

Availability: InStock priceValidUntil: 2026-01-28

  • Rs. 148.68 (inc GST)
    Rs.126.00 + GST

    Qty :

GST Invoice: Available for all purchases — eligible for input tax credit.

Delivery: 2–8 days across India. No MOQ required.

Bulk Orders: Need more quantity or not in stock? Email: dnatechindia [at] gmail.com

Import Service: We import a wide range of electronic components on request.

LM3940 Low-Dropout Voltage Regulator 3.3V

LM3940IS-3.3/NOPB, 1A low-dropout regulator with 3.3V output and 4.5V input range.

The LM3940 Low-Dropout Voltage Regulator 3.3V provides a stable 3.3 V output from a 5 V supply. It is ideal for systems that require both 5 V and 3.3 V logic levels, ensuring reliable performance with input voltages as low as 4.5 V. With a TO-220 package, it can deliver up to 1 A of load current without additional heatsinking.

Designed for efficiency, the LM3940 Low-Dropout Voltage Regulator 3.3V features excellent load regulation and only requires one external component for operation. It includes built-in protection against excessive temperature and short circuits, making it a safe choice for various applications.

Commonly used in laptop and desktop computers, as well as in post-regulation for switching supplies, the LM3940 Low-Dropout Voltage Regulator 3.3V is a reliable component for logic systems. Explore its capabilities to enhance your electronic projects.

Explore the reliability of OPAMP products at DNA. The OPAMP category offers a range of precision voltage regulators. Check other OPAMP that we have in stock.

If you need specific electronic components, reach out to us. We can help you find parts like Power Supply, HMI Display, LCD, Development boards, Microcontroller, or Diode. We also support importing if items are not available. Contact Us.

Features of LM3940 Low-Dropout Voltage Regulator 3.3V

  • Input Voltage Range: 4.5 V to 5.5 V
  • Output Voltage Specified over Temperature
  • Excellent Load Regulation
  • Specified 1-A Output Current
  • Requires only One External Component
  • Built-in Protection against Excess Temperature
  • Short-Circuit Protected

Specification of LM3940 Low-Dropout Voltage Regulator 3.3V

  • Input Voltage Range: 4.5V to 5.5V
  • Output Voltage: 3.3V (fixed)
  • Output Current: 1A
  • Package Type: TO-263
  • Mounting Style: Surface mount
  • Number of Pins: 3

Applications of LM3940 Low-Dropout Voltage Regulator 3.3V

  • Laptop and Desktop Computers
  • Post-regulation for switching supplies
  • Logic Systems

Related Links for LM3940 Low-Dropout Voltage Regulator 3.3V

Package Includes

  • 1 X LM3940IS-3.3/NOPB
Extra Information
Country of Origin China
Imported By ElectroSource Private Limited

Reviews (0)

Write a review

Note: HTML is not translated!
    Bad           Good

NEW Products

Product Page : New Products

INA333 Instrumentation Amplifier Module

INA333 Instrumentation Amplifier Module

INA333 Precision Instrumentation Amplifier ModuleINA333 Breakout Module for easy implementation + lo..

Rs.649.00 (inc GST)
Rs.550.00 + GST

SKU: 1616 | DAB059
Stock: 19
HWCT004 Micro Precision Current Transformer 50A / 50MA DIY Sensor SR006

HWCT004 Micro Precision Current Transformer 50A / 50MA DIY Sensor SR006

HWCT004 Micro Precision Current Transformer 50A / 50MA DIY Sensor SR006HWCT004 Micro Precision Curre..

Rs.263.14 (inc GST)
Rs.223.00 + GST

SKU: 7610 | DAH456
Stock: 30
EG8010 digital pure sine wave inverter IC

EG8010 digital pure sine wave inverter IC

EG8010 digital pure sine wave inverter ICEG8010 Single Phase Sinusoid Inverter ASICEG8010 is a digit..

Rs.220.66 (inc GST)
Rs.187.00 + GST

SKU: 3005 | DAE729
Stock: 77
ZMPT101B AC voltage transformer

ZMPT101B AC voltage transformer

ZMPT101B Miniature Voltage Transformer SensorZMPT101B Voltage Transformer Sensor for precise voltage..

Rs.69.38 (inc GST)
Rs.58.80 + GST

SKU: 2405 | DAC237
Stock: 183

Have You Seen

Product Page : Have You Seen

Sensirion SPS30 Particulate Matter Sensor for Air Quality

Sensirion SPS30 Particulate Matter Sensor for Air Quality

Sensirion SPS30 Particulate Matter Sensor for Air QualitySPS30 PM2.5 Sensor, Range: 0–1000 µg/m³, pr..

Rs.3,774.82 (inc GST)
Rs.3,199.00 + GST

SKU: 10398 | DAJ506
Stock: 2
XY MD02 Modbus SHT20 Sensor Temperature and Humidity Transmitter

XY MD02 Modbus SHT20 Sensor Temperature and Humidity Transmitter

XY Temperature and Humidity Transmitter ModuleXY MD02 SHT20 Sensor for precise temperature and humid..

Rs.590.00 (inc GST)
Rs.500.00 + GST

SKU: 4027 | DAG749
Stock: 200
MEANWELL SMPS RS-15-24

MEANWELL SMPS RS-15-24

Meanwell RS-15-24 DIN Rail Power Supply Unit Meanwell RS-15-24 SMPS offers efficient AC-DC conversio..

Rs.703.28 (inc GST)
Rs.596.00 + GST

SKU: 3203 | DAD164
Stock: 5
SKD502T MOSFET (N Channel)

SKD502T MOSFET (N Channel)

SKD502T N-Channel MOSFET 85V 120A TO-220 SKD502T N-Channel MOSFET, 85V, 120A, 174W power dissipation..

Rs.46.02 (inc GST)
Rs.39.00 + GST

SKU: 3887 | DAF978
Stock: 30

Related Products

HT12E RF Encoder

HT12E RF Encoder

HT12E RF EncoderHT12E: RF Encoder The 212 decoders are a series of CMOS LSIs for remote control syst..

Rs.62.84 (inc GST)
Rs.53.25 + GST

SKU: 27 | DAA482
Stock: 9
USB to RS485 Module

USB to RS485 Module

USB to RS485 Converter ModuleThis is a FTDI Based USB 2.0 to RS-485 converter module. It supports mu..

Rs.240.00 (inc GST)
Rs.203.39 + GST

SKU: 495 | DAE252
Stock: 16
TIP42 PNP Transistor

TIP42 PNP Transistor

TIP42 PNP TransistorTIP42 Series Transistors are used in Medium Power Linear Switching Applications...

Rs.24.78 (inc GST)
Rs.21.00 + GST

SKU: 566 | DAA206
Stock: 4
STC8G1K08-36I-SOP8 SMD STC Microcontroller IC

STC8G1K08-36I-SOP8 SMD STC Microcontroller IC

STC8G1K08-36I-SOP8 SMD STC Microcontroller ICSTC8G1K08-36I-SOP8 SMD STC Microcontroller ICThe STC8G1..

Rs.369.93 (inc GST)
Rs.313.50 + GST

SKU: 8134 | DAH638
Stock: 2
LM2662M Switching Regulator SMD IC

LM2662M Switching Regulator SMD IC

LM2662M Switching Regulator SMD IC - Voltage Inverter & Doubler LM2662M SMD IC for voltage inve..

Rs.214.17 (inc GST)
Rs.181.50 + GST

SKU: 10041 | DAH595
Stock: 0