Part Number: LM2941LD

Manufacturer: Texas Instruments


Shipped from: Shenzhen/HK Warehouse

Stock Available: Check with us

Technical Specifications of LM2941LD

Datasheet  LM2941LD datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – Linear
Manufacturer Texas Instruments
Packaging Tape & Reel (TR)
Part Status Active
Regulator Topology Positive Adjustable
Voltage – Output 5 V ~ 20 V
Current – Output 1A
Voltage – Dropout (Typical) 0.5V @ 1A
Number of Regulators 1
Voltage – Input 6 V ~ 26 V
Current – Limit (Min)
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-WDFN Exposed Pad
Supplier Device Package 8-WSON (4×4)


When it comes to computer circuitry, accuracy, and dependability are the most important things. The LM2941LD positive voltage regulator is a great example of how these ideas can be put into practice. This detailed guide goes into depth about the LM2941LD’s powers, features, and uses, so you can fully understand how it can be used in different situations.

Unveiling the LM2941LD: An Overview

The LM2941LD positive voltage regulator is a marvel of modern engineering. It has a wide range of great features that make it an important part of many different uses. With a working voltage input range of 6 V to 26 V, this regulator is made to work with a wide range of power sources and give consistent performance.

LM2941LD Features

  • Wide Operating Voltage Range (VIN): The LM2941LD works perfectly with input voltages from 6 V to 26 V, so it can be used with a variety of power sources and in different settings.
  • Adjustable Output Voltage: The regulator gives you a lot of freedom because it lets you change the output voltage from 5 V to 20 V to meet your needs.
  • Minimal Dropout Voltage: The LM2941LD works reliably even when the input voltage is close to the output voltage. The usual dropout voltage is only 0.5 V (at an output current of 1 A).
  • High Output Current: This regulator can give output currents that are higher than 1 A, which makes it useful for designs with parts or systems that need a lot of power.
  • Efficient Quiescent Current Reduction: Adding a special quiescent current reduction circuit saves energy by lowering the ground pin current, especially when the difference between the input and output voltages is 3 V or more.
  • Robust Protection: The LM2941LD is made to last, and it protects against voltage spikes and wrongly installed batteries with its reverse battery protection. During line transients, it shuts down automatically to protect both its own circuits and the loads it is attached to. It also has protection against short circuits and thermal overloads for extra safety.
  • Suitable for Vehicle Applications: The LM2941LD was made to work in a vehicle’s power system, so it can handle voltage changes and load dumps, among other problems. The LM2941LD is offered in a space-saving WSON package, which is perfect for designs where size is important.
  • Logic Signal Compatibility: The regulator’s function can be easily controlled by the ON/OFF switch, which works with both TTL and CMOS logic signals.
  • Tests that are better: The P+ product improvement tests make sure that the regulator works well and is reliable.

Together, these key features make the LM2941LD a great positive voltage regulator that can be used in a wide range of systems, from cars to industrial to portable electronics. Its ability to deliver power in a stable, efficient way and its improved protection features make it an important part of modern electronic designs.

LM2941LD Applications

The LM2941LD is very flexible and can be used in a wide range of situations.

● Automotive Power Systems

The LM2941LD works well in automotive situations where the input voltage changes often. It can handle a wide range of working voltages and has protections against reverse battery installations and voltage spikes. This makes it a great choice for delivering stable power to important electronics in cars.

● Industrial Power Supplies

The LM2941LD works well in industrial areas where accuracy and dependability are very important. Its ability to keep output voltages the same even when input voltages change makes sure that tools and equipment work well.

● Portable Electronic Devices

The LM2941LD is used in portable electronics where room and efficiency are important. Its adjustable output voltage and low dropout make it a great choice for charging devices that run on batteries while extending the life of the batteries.

● Embedded Systems

For the best results, embedded systems need stable power. The LM2941LD is a good choice for powering microcontrollers, sensors, and communication units because it can handle large output currents and has built-in safety features.

Utilizing the LM2941LD: Practical Considerations

When using the LM2941LD positive voltage regulator in your electronic projects, it’s important to think about the details that will make sure it works well and is reliable. Here are some important practical things to think about:

  • Input Voltage Range: Make sure that the input voltage (VIN) is between 6 V and 26 V, which is the working range. If you use the LM2941LD outside of this area, it could break or stop working.
  • Change the output voltage: Use the regulator’s changeable output voltage to fine-tune the output voltage to meet the needs of your application. Because of this, you can make your plan work for different parts or subsystems.
  • Output Capacitors: Use the output capacitors suggested in the LM2941LD’s datasheet to keep the output voltage stable and keep changes to a minimum. The choice of capacitors can affect how the regulator responds to sudden changes and how well it handles noise.
  • Load Transients: Think about the kinds of load changes or “transients” that your circuit could have. The LM2941LD’s transient reaction is a key part of keeping the output voltage stable when the load current changes quickly.
  • Thermal Management: When the output current is high or there is a big difference in voltage, the regulator may get hot. Use the right thermal management solutions, like heatsinks or fans, to keep things from getting too hot and to make sure they will work for a long time.
  • Circuitry for protection: Even though the LM2941LD has built-in protection features, it might be necessary in some situations to add extra protection from the outside, such as input overvoltage protection and input reverse polarity protection.
  • PCB Layout: Pay close attention to the PCB layout, making sure that the grounding, signal routing, and space between components are all right. A well-planned structure keeps noise, interference, and temperature problems to a minimum.
  • Start-Up Behavior: During start-up, think about the possibility of voltage spikes or changes. Use the right filtering parts to keep the voltage from going too high or too low, which could stress the regulator.
  • Needs that are specific to the application: Change how you use the LM2941LD to meet the needs of your program. Whether you’re using a regulator for a car system, a piece of industrial equipment, or a portable device, make sure that its powers match your needs.
  • Testing and Making Sure: Test and make sure that your circuit works well in a variety of working conditions, load situations, and temperature ranges. This step is important to make sure that the LM2941LD works as planned and reliably.

By keeping these things in mind, you can use the LM2941LD positive voltage regulator to its fullest potential and build electronic designs that are not only efficient and reliable but also fit the needs of your specific application. Make sure to look at the regulator’s datasheet and application notes for more information on how to apply these things well.


The LM2941LD positive voltage regulator is a great example of accuracy, dependability, and innovation. It has impressive features and safeguards, and it’s used in many different electronic devices. Whether it’s in cars, factories, gadgets, or small computer systems, the LM2941LD helps engineers and designers make strong and effective solutions that last a long time. As technology gets better, the LM2941LD stays important for controlling voltage, making sure power is steady. Make your analog designs better with the LM2941LD. You can get it from us at ICRFQ, a top electronic parts seller in China.

4.8/5 - (397 votes)
Kevin Chen