As the demand for compact and energy-efficient electronics continues to rise, selecting the right voltage regulator is essential for ensuring system reliability and efficiency. The LP2980IM5-4.0, developed by Texas Instruments, is a fixed 4.0V low dropout (LDO) regulator that offers high accuracy, ultra-low quiescent current, and excellent performance for low-power applications.
The LP2980IM5-4.0 is a precision LDO voltage regulator housed in a space-saving SOT-23-5 package. Designed to deliver a fixed 4.0V output with low dropout voltage, it is ideal for battery-powered devices, portable electronics, and noise-sensitive applications. Its ultra-low shutdown current and efficient thermal performance make it a versatile choice across consumer and industrial sectors.
Key Features
This LDO regulator provides a tightly regulated 4.0V output with a voltage accuracy of ±2%, making it suitable for precision electronics. It supports output currents up to 50mA while maintaining a typical dropout voltage of just 200mV, ensuring operation even with low input voltages. The typical quiescent current is only 75µA, helping extend battery life in always-on systems.
The device also features an active shutdown function, reducing standby current to less than 1µA, and includes built-in thermal shutdown and current limit protection to ensure safety and reliability in demanding environments.
Ideal Use Cases
The LP2980IM5-4.0 is highly recommended for applications that demand stable voltage, compact footprint, and energy efficiency. These include wearable electronics such as smartwatches and fitness trackers, handheld medical instruments requiring low noise and consistent voltage, wireless modules for communication systems, and industrial devices operating under wide temperature conditions.
Advantages Over Similar Devices
Compared to standard regulators, the LP2980IM5-4.0 provides a strong balance of low dropout voltage, minimal quiescent current, and precise voltage output. While many alternatives may support higher current output, they often come with higher power consumption or larger packages. The LP2980IM5-4.0 is tailored for systems where space and energy savings are top priorities.
Market Perspective
With the continued growth of IoT, portable healthcare, and smart consumer devices, the market for ultra-low-power LDOs is expanding rapidly. The LP2980IM5-4.0, with its well-rounded performance profile, is positioned as a go-to solution for engineers designing efficient and compact power systems.
Frequently Asked Questions
Does the LP2980IM5-4.0 support shutdown mode?
Yes, it includes an enable/shutdown pin that reduces standby current to below 1µA when deactivated.
What kind of protection features are integrated?
It features thermal shutdown and current limiting, enhancing overall system safety and reliability.
What is the input voltage range?
It typically operates from 2.5V to 16V, allowing flexibility in various battery and power source configurations.
Conclusion
The LP2980IM5-4.0 offers a reliable and efficient 4.0V power supply solution for modern low-power systems. With high accuracy, low noise, and low power consumption, it is particularly well-suited for compact designs that prioritize energy efficiency and performance.
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