STMicroelectronics

L4931CPT25-TR

L4931CPT25-TR Description

The L4931CPT25-TR is a linear voltage regulator from STMicroelectronics, designed to provide a fixed output voltage of 2.5V with a maximum output current of 250mA. This regulator is housed in a PPAK package, making it suitable for surface mount applications. It features a maximum input voltage of 20V and a dropout voltage of 0.8V at 250mA, ensuring efficient operation even at lower input voltages. The regulator also includes over-current and over-temperature protection features, enhancing its reliability and safety in various electronic circuits. Despite being marked as obsolete, the L4931CPT25-TR remains a robust choice for applications requiring a stable and efficient power supply.

L4931CPT25-TR Features

• Output Type: Fixed
• Voltage - Input (Max): 20V
• Current - Output: 250mA
• Number of Regulators: 1
• Output Configuration: Positive
• Current - Supply (Max): 6 mA
• Voltage - Output (Min/Fixed): 2.5V
• Voltage Dropout (Max): 0.8V @ 250mA
• Current - Quiescent (Iq): 1 mA
• PSRR: 75dB ~ 55dB (120Hz ~ 10kHz)
• Protection Features: Over Current, Over Temperature
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• RoHS Status: ROHS3 Compliant
• HTSUS: 8542.39.0001
• ECCN: EAR99

L4931CPT25-TR Applications

The L4931CPT25-TR is ideal for applications that require a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and high PSRR make it suitable for use in low-power systems, portable devices, and battery-operated equipment. The regulator's over-current and over-temperature protection features ensure reliable operation in various operating conditions. Specific use cases include:

• Battery Chargers: Provides a stable voltage for efficient and safe charging.
• Portable Electronics: Ensures reliable power supply in devices such as smartphones, tablets, and wearables.
• Medical Devices: Suitable for applications requiring high reliability and low noise.
• Industrial Control Systems: Provides stable power supply for sensors and actuators.

Conclusion of L4931CPT25-TR

The L4931CPT25-TR from STMicroelectronics is a versatile linear voltage regulator that offers a stable 2.5V output with a maximum current of 250mA. Its low dropout voltage and high PSRR make it an efficient choice for low-power applications. The inclusion of over-current and over-temperature protection features enhances its reliability and safety. Although marked as obsolete, the L4931CPT25-TR remains a reliable option for applications requiring a stable and efficient power supply. Its surface mount PPAK package and compatibility with tape and reel packaging make it suitable for automated assembly processes.