STMicroelectronics

LF85CP

LF85CP Description

The LF85CP is a linear regulator IC designed by STMicroelectronics, specifically tailored for applications requiring a fixed output voltage of 8.5V and a maximum output current of 500mA. This device is housed in a TO220FP package, making it suitable for through-hole mounting. Despite being marked as obsolete, the LF85CP remains a reliable choice for power management solutions due to its robust design and compliance with industry standards such as REACH and ROHS3.

LF85CP Features

• Output Type: Fixed at 8.5V, ensuring stable power supply for various electronic circuits.
• Input Voltage Range: Capable of handling a maximum input voltage of 16V, providing flexibility in power source selection.
• Output Current: Delivers a consistent 500mA, sufficient for a wide range of low-to-medium power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.7V at 500mA, the LF85CP maintains efficiency even under varying load conditions.
• Power Supply Current: Consumes a maximum of 12mA, contributing to overall system efficiency.
• Quiescent Current: Low quiescent current of 1.5mA ensures minimal power consumption during standby.
• Power Supply Rejection Ratio (PSRR): Ranging from 72dB to 57dB across frequencies from 120Hz to 10kHz, the LF85CP effectively filters out noise from the power supply.
• Protection Features: Over-current and over-temperature protections safeguard the device and connected circuits from damage.
• Compliance: REACH unaffected and ROHS3 compliant, ensuring environmental safety and regulatory adherence.
• Moisture Sensitivity Level (MSL): MSL 3 (168 hours) indicates the device's robustness against moisture, suitable for various environmental conditions.

LF85CP Applications

The LF85CP is ideal for applications where a stable, fixed voltage supply is crucial. Its 8.5V output and 500mA current capability make it suitable for:

• Consumer Electronics: Powering small appliances and devices that require a stable voltage source.
• Industrial Equipment: Providing reliable power to sensors, actuators, and control systems.
• Telecommunications: Ensuring stable power supply for low-power communication modules and peripherals.
• Automotive: Suitable for in-vehicle electronics where a fixed voltage is needed for reliable operation.

Conclusion of LF85CP

Despite its obsolete status, the LF85CP remains a viable option for power management applications due to its robust design and compliance with industry standards. Its low dropout voltage, high PSRR, and protection features make it a reliable choice for ensuring stable power supply in various electronic systems. While newer alternatives may offer additional features, the LF85CP's proven performance and compatibility with existing designs continue to make it a valuable component in the electronics industry.