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LM3940IS-3.3/NOPB

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Stock: 31
Availability: InStock priceValidUntil: 2026-08-25
SKU: 7069 | DAG696

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

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

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

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

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

Description

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

Package Includes

1 X LM3940IS-3.3/NOPB

Extra Information
Country of Origin	China
Imported By	ElectroSource Private Limited

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Frequently Asked Questions

Do you provide a GST bills?

Yes we provide GST Bill by the name of DNA Solutions. You will receive a GST compliant invoice for your records. You can take GST benefit.

What is your return / replacement policy?

Returns/replacements depend on the item type and condition. If there’s an issue, contact us with photos/videos and we’ll guide you as per policy.

How do I track my shipment?

After dispatch, you’ll receive a tracking link/number via email/WhatsApp/SMS (as applicable).

I forgot to add GST number at time of placing order, but I need GST Invoice in my firms name?

You can contact us via Contact us page and send your order details and GST number we will send you updated Invoice soft copy.

Do you support Purchase Orders (PO) for companies/colleges?

Yes — we accept POs. To process a PO faster, share: PO copy, billing address, shipping address, GSTIN (if applicable), and contact number. We’ll confirm availability, price, and dispatch timeline.

Can I return a component if I ordered the wrong value/package?

If the item is unused and in original packaging, we’ll check eligibility case-by-case. Some items may be non-returnable depending on category/condition.

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