STMicroelectronics

L4931CZ25

L4931CZ25 Description

The L4931CZ25 is a linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 2.5V and a maximum output current of 250mA. This regulator is housed in a TO92-3 package, making it suitable for through-hole mounting. It is designed to operate with an input voltage range up to 20V, ensuring compatibility with a wide range of power sources. The regulator is equipped with over-current and over-temperature protection features, enhancing its reliability and durability in various applications.

L4931CZ25 Features

• Output Type: Fixed at 2.5V, providing a stable voltage supply for sensitive electronic components.
• Input Voltage Range: Capable of handling up to 20V, making it versatile for different power supply configurations.
• Output Current: Delivers a maximum of 250mA, suitable for low to medium power applications.
• Dropout Voltage: A maximum dropout voltage of 0.8V at 250mA ensures efficient operation even at low input voltages.
• Supply Current: The regulator operates with a maximum supply current of 6mA, minimizing power consumption.
• Quiescent Current: Features a low quiescent current of 1mA, which is ideal for battery-operated devices.
• Power Supply Rejection Ratio (PSRR): Offers a high PSRR ranging from 75dB at 120Hz to 55dB at 10kHz, ensuring excellent noise suppression.
• Protection Features: Includes over-current and over-temperature protection, enhancing the reliability and safety of the device.
• Compliance: The L4931CZ25 is REACH unaffected and RoHS3 compliant, meeting environmental and regulatory standards.
• Moisture Sensitivity Level (MSL): Rated at MSL 1 (Unlimited), making it suitable for storage and handling in various environments.

L4931CZ25 Applications

The L4931CZ25 is ideal for a variety of applications where a stable and reliable power supply is required. Its fixed 2.5V output and 250mA current capability make it suitable for:

• Consumer Electronics: Ideal for powering small electronic devices such as portable audio players, handheld gaming consoles, and other battery-operated gadgets.
• Industrial Applications: Suitable for low-power industrial sensors, controllers, and monitoring systems.
• Medical Devices: Can be used in medical equipment where low power consumption and high reliability are critical.
• Automotive: Applicable in automotive applications for powering small electronic modules and sensors.
• Telecommunications: Useful in low-power telecommunication devices and systems.

Conclusion of L4931CZ25

The L4931CZ25 from STMicroelectronics is a robust and versatile linear voltage regulator, offering a fixed 2.5V output and a maximum output current of 250mA. Its low dropout voltage, high PSRR, and comprehensive protection features make it a reliable choice for a wide range of applications. Despite being marked as obsolete, the L4931CZ25 remains a valuable component for designers seeking a stable and efficient power solution. Its compliance with environmental and regulatory standards ensures that it meets the requirements of modern electronics manufacturing.