National LM2941CS Adjustable 1A LDO Regulator TO-263-5

National LM2941CS Adjustable 1A Low Dropout Regulator

Product Condition

Unused, New Old Stock; clean and in excellent condition.

Product Overview

The LM2941CS by National Semiconductor is a 1A adjustable low dropout (LDO) voltage regulator in a TO-263 surface-mount package. Designed for automotive and industrial applications, it delivers stable output with a low dropout across a wide input range. It includes short-circuit protection and handles voltage transients up to 60 V.

Key Features

• Adjustable Output: 5 V to 20 V
• Output Current: Up to 1 A
• Dropout Voltage: 0.5 V typical at 1 A, 1 V max
• Input Voltage: 6 V to 26 V (60 V transient tolerant)
• Reference Voltage: 1.275 V
• Quiescent Current: ~30 mA at 1 A load
• Line Regulation: 4 mV/V
• Load Regulation: 7 mV/V
• Ripple Rejection: 0.005%/V
• Output Noise: 0.003% RMS (10 Hz–100 kHz)
• Short-Circuit Current Limit: ~1.6 A
• Package: TO-263-5 (D²PAK), surface mount, ~10 mm long

Applications

• Automotive voltage regulation
• Industrial control systems
• Battery-powered equipment
• Embedded electronics needing low dropout performance

Frequently Asked Questions

What is PartsMine.com?

We’re a small team in Idaho with a big love for useful parts. Since 2018, we’ve been helping businesses, inventors, fixers, and tinkerers find the stuff they need. We source good parts from real places - labs, factories, and tech closets around the U.S., give them a once-over, and ship ’em out fast from Idaho. Everything we sell is backed by us - because you're the reason we're here.

How fast is shipping?

Pretty fast. Most orders ship within one business day from Idaho—often same-day if you catch us early. We don’t mess around when it comes to getting parts out the door.

What’s included?

You’ll get exactly what’s shown in the photos: one LM2941CS adjustable regulator in TO-263-5 package, no extras. No guesswork, no missing pieces.

Can I get more info before buying?

Absolutely. Ask away! We’re generalists, and as you can see—we’ve got a lot of stuff. But we’ll give it our best shot and get back to you with a straight answer. No runaround.

What does "Unused, New Old Stock" mean?

Unused, New Old Stock means the part was never put into service, but has been stored for a while. It’s clean, undamaged, and ready to use—just not fresh from the factory.