Texas Instruments LM3940ISX-3.3/NOPB

Enrgtech Part No: ET11598925
|
Manufacturer Part No:
LM3940ISX-3.3/NOPB
|
Manufacturer: Texas Instruments

LM3940ISX-3-3-NOPB Texas Instruments LM3940ISX-3.3/NOPB

Product Information

Number of Outputs:

Load Regulation:

50 mV

Line Regulation:

40 mV

Regulator Type:

Low Dropout Voltage

Output Type:

Fixed

Maximum Switching Frequency:

100 kHz

Package Type:

TO-263-3

Regulator Function:

LDO

Maximum Output Current:

Pin Count:

Accuracy:

2.5%

HTSUS:

8542.39.0001

Checking for live stock

The Texas Instruments LM3940ISX-3.3/NOPB is a robust, 1-A low-dropout (LDO) linear voltage regulator that delivers a stable 3.3-V fixed output from 5-V power sources. Housed in a compact TO-263 (D2PAK-3) surface-mount package, it’s ideal for UK and global B2B technical applications that require space-efficient, reliable power management.

Technical Specifications

Input Voltage Range: 4.5 V – 7.5 V (typical 5 V to 5.5 V)
Quiescent Current: ~15 mA (operating supply current)
Dropout Voltage: ~0.2 V @ 100 mA; up to 0.8 V @ 1 A
Operating Temperature: –40 °C to +125 °C
Protection: Integrated thermal shutdown and short‑circuit protection
Package / Material: TO‑263, D2PAK‑3 (SMD/SMT) – ideal for high‑heat dissipation and compact PCB design

How It Benefits Users

The LM3940ISX-3.3/NOPB excels in applications combining 5 V and 3.3 V logic, especially where low dropout performance is critical. The regulator maintains precise output even with input voltages as low as 4.5 V, reducing wasted overhead and improving thermal performance. Built-in protection circuits ensure long-term reliability in industrial and embedded systems where fault tolerance is vital.

Why Buy this Product?

This TI regulator is engineered for performance, thermal resilience, and minimal external components; only one capacitor is needed to stabilise the output. Compared to generic 3.3 V regulators, TI’s LM3940 ensures accuracy, dependable availability, and enhanced noise performance.

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

Your Rating

Reviews

Be the first to review.

FAQs

Yes. We ship LM3940ISX-3.3/NOPB Internationally to many countries around the world.

Yes. You can also search LM3940ISX-3.3/NOPB on website for other similar products.

We accept all major payment methods for all products including ET11598925. Please check your shopping cart at the time of order.

We use our internationally recognized delivery partners UPS/DHL. Collection of ET11598925 can also be arranged for the customer by international shipments through contacting our customer support team. Additionally, you can also search"Texas Instruments" products on our website by using Enrgtech's Unique Manufacturing Part Number ET11598925.

You can order Texas Instruments brand products with LM3940ISX-3.3/NOPB directly through our website or call us at +44 (0) 3303 800 157 or email our support team at sales@enrgtech.co.uk.

Yes. Our products in Voltage Regulators - Linear category are shipped in lowest possible time.

You will get a confirmation email regarding your order of Texas Instruments LM3940ISX-3.3/NOPB. You can also check on our website or by contacting our customer support team for further order details on Texas Instruments LM3940ISX-3.3/NOPB.