The SC112CSK-3.8TR is a low dropout (LDO) linear regulator manufactured by Semtech Corporation. It provides a stable and regulated 3.8V output voltage from a higher input voltage. This regulator is designed for applications requiring high efficiency and minimal board space, such as portable electronics and wireless communication devices.

Applications

• Portable Electronics: Used in smartphones, tablets, and other battery-powered devices.
• Wireless Communication Devices: Provides power to transceivers and RF components in wireless systems.
• Microcontroller Power: Supplies a stable voltage for microcontrollers and other digital circuits.
• Post-Regulation for Switching Regulators: Reduces ripple and noise in switching power supplies.
• Sensor Power: Provides clean power for sensitive sensors in various applications.

Features

• Low Dropout Voltage: Maintains a stable output voltage even when the input voltage is close to the output voltage.
• Stable with Ceramic Capacitors: Optimized for use with low-ESR ceramic capacitors, reducing the need for large and expensive tantalum or electrolytic capacitors.
• Short Circuit Protection: Protects the device and the load from damage due to short circuits.
• Over-Temperature Protection: Shuts down the regulator if the temperature exceeds a safe limit, preventing thermal damage.
• Low Quiescent Current: Minimizes power consumption when the regulator is not actively supplying current to the load, extending battery life.
• Small Package: Available in a compact package for space-constrained applications.

Benefits

• Extended Battery Life: The low quiescent current and high efficiency help to extend battery life in portable applications.
• Improved System Reliability: Short circuit and over-temperature protection features enhance the overall reliability of the system.
• Reduced Board Space: The small package size and compatibility with ceramic capacitors minimize board space requirements.
• Simplified Design: Easy to use and requires minimal external components.
• Stable Power Supply: Provides a stable and regulated 3.8V output, ensuring proper operation of connected devices.

Additional Details

The SC112CSK-3.8TR typically operates with an input voltage range of 4V to 5.5V. The dropout voltage is very low at rated output current. It has excellent line and load regulation characteristics. The regulator is available in a small outline package suitable for surface mount assembly. The part is supplied in tape and reel packaging (TR) for automated assembly.