STMicroelectronics

L4931CPT25

L4931CPT25 Description

The L4931CPT25 is a fixed-output linear regulator designed for applications requiring a stable 2.5V supply voltage with a maximum output current of 250mA. Manufactured by STMicroelectronics, this device is housed in a PPAK package, making it suitable for surface-mount applications. Despite its product status being marked as obsolete, the L4931CPT25 remains a reliable choice for power management in various electronic systems.

L4931CPT25 Features

• Fixed Output Voltage: The L4931CPT25 provides a stable output voltage of 2.5V, ensuring consistent power supply to connected components.
• High Input Voltage Range: With a maximum input voltage of 20V, this regulator can handle a wide range of input voltages, making it versatile for different power sources.
• Low Dropout Voltage: The maximum dropout voltage of 0.8V at 250mA ensures high efficiency, even at low input-to-output voltage differentials.
• Low Quiescent Current: A quiescent current of only 1mA minimizes power consumption, making the device suitable for low-power applications.
• High PSRR: The power supply rejection ratio (PSRR) ranges from 75dB at 120Hz to 55dB at 10kHz, effectively filtering out noise from the input supply.
• Protection Features: Overcurrent and overtemperature protection features safeguard the device and connected circuits from damage.
• Compliance and Packaging: The L4931CPT25 is REACH unaffected and RoHS3 compliant, ensuring environmental and regulatory standards are met. It is available in a tube package, facilitating easy handling and integration.

L4931CPT25 Applications

The L4931CPT25 is ideal for a variety of applications where a stable and efficient power supply is crucial. Some specific use cases include:

• Consumer Electronics: Ideal for powering low-voltage components in devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Suitable for powering sensors, microcontrollers, and other low-power circuits in industrial control systems.
• Medical Devices: Can be used in medical equipment where a stable power supply is essential for reliable performance.
• Automotive Applications: Applicable in automotive electronics for powering infotainment systems, control units, and other onboard electronics.

Conclusion of L4931CPT25

The L4931CPT25 from STMicroelectronics is a robust linear regulator offering a fixed 2.5V output with a maximum current of 250mA. Its low dropout voltage, high PSRR, and protection features make it a reliable choice for various applications. Despite being marked as obsolete, its performance benefits and compliance with industry standards ensure it remains a viable option for power management in electronic systems.