STMicroelectronics

LM258PT

The LM258PT is a high-performance step-down switching regulator (also known as a buck converter) manufactured by STMicroelectronics. It is designed to provide efficient and stable voltage regulation for a wide range of applications. Here's a brief description, features, and applications of the LM258PT:

Description:

The LM258PT is a monolithic integrated switching regulator that steps down an input voltage to a lower output voltage. It is available in a thermally enhanced Power TOP® III package, which allows for efficient heat dissipation and improved performance in compact spaces.

Features:

1. Wide input voltage range: The LM258PT can accept input voltages from 4V to 40V, making it suitable for various power supply sources.
2. High efficiency: The regulator offers high efficiency (up to 93%) with low component count, which helps reduce overall system cost and size.
3. Fixed 5V output: The LM258PT provides a fixed 5V output voltage, which is ideal for applications that require a stable and regulated power supply.
4. Low quiescent current: The device has a low quiescent current of 80µA, which helps extend the battery life in portable applications.
5. Over-current and thermal protection: The LM258PT includes built-in protection features to safeguard against over-current and overheating conditions.
6. Small form factor: The Power TOP® III package allows for a compact design, making it suitable for space-constrained applications.
7. Wide operating temperature range: The regulator can operate in a temperature range of -40°C to +125°C, making it suitable for various environmental conditions.

Applications:

1. Portable electronics: The LM258PT is ideal for powering portable devices such as smartphones, tablets, and wearables, where efficient power regulation and compact size are crucial.
2. Industrial equipment: The high efficiency and wide input voltage range make the LM258PT suitable for use in industrial equipment that requires stable power regulation.
3. Telecommunication devices: The LM258PT can be used in telecommunication devices such as routers, modems, and base stations, where reliable power supply is essential.
4. Automotive electronics: The wide operating temperature range and thermal protection features make the LM258PT suitable for automotive applications, such as infotainment systems and power management modules.
5. Medical devices: The LM258PT can be used in medical devices that require a stable and regulated power supply, such as portable medical instruments and diagnostic equipment.

In summary, the LM258PT is a versatile and efficient step-down switching regulator that offers a wide range of features suitable for various applications, from portable electronics to industrial equipment. Its compact form factor, high efficiency, and built-in protection features make it an attractive choice for designers looking to optimize power management in their systems.