STMicroelectronics

LF25CPT  

Linear & Switching Voltage Regulators

LF25CPT Description

The LF25CPT is a linear regulator designed by STMicroelectronics, featuring a fixed output voltage of 2.5V and a maximum output current of 500mA. This regulator is housed in a PPAK package and is suitable for surface mount applications. It operates with a maximum input voltage of 16V and has a dropout voltage of 0.7V at 500mA, ensuring efficient power conversion even at low input-to-output voltage differences. The2 LF5CPT also includes enable control and protection features such as over-current and over-temperature protection, making it a reliable choice for various power management applications. Despite being marked as obsolete, the LF25CPT remains a viable option for legacy systems and specific applications where its unique features are advantageous.

LF25CPT Features

• Output Type: Fixed
• Input Voltage Range: Up to 16V
• Output Voltage: Fixed at 2.5V
• Output Current: 500mA
• Number of Regulators: 1
• Output Configuration: Positive
• Supply Current (Max): 12mA
• Quiescent Current (Iq): 1mA
• Power Supply Rejection Ratio (PSRR): 82dB to 65dB (120Hz to 10kHz)
• Dropout Voltage (Max): 0.7V @ 500mA
• Control Features: Enable
• Protection Features: Over Current, Over Temperature
• Package: PPAK
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: REACH Unaffected, ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8542.39.0001

LF25CPT Applications

The LF25CPT is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and high PSRR make it suitable for systems where minimal power loss and noise rejection are critical. The enable control feature allows for dynamic power management, enhancing system flexibility and energy efficiency. The LF25CPT is particularly well-suited for:

• Consumer Electronics: Portable devices, where low power consumption and high efficiency are essential.
• Industrial Equipment: Powering sensors and actuators in industrial control systems.
• Telecommunications: Providing stable power communication to modules and base stations.
• Automotive: Powering onboard electronics and infotainment systems.

Conclusion of LF25CPT

The LF25CPT, despite its obsolete status, remains a robust and reliable linear regulator for applications requiring a fixed 2.5V output and 500mA current. Its low dropout voltage and high PSRR ensure efficient power conversion and noise reduction, making it suitable for a wide range of applications. The inclusion of enable control and over-current/over-temperature protection further enhances its reliability and versatility. For legacy systems and specific applications where these features are critical, the LF25CPT continues to be a valuable component in the power management landscape.

LF25CPT Documents

Download datasheets and manufacturer documentation for LF25CPT