The SC112CSK-4.0-TR is a low dropout (LDO) linear regulator manufactured by Semtech Corporation. It is designed to provide a stable and regulated 4.0V output voltage from a higher input voltage. This makes it suitable for applications requiring a precise and reliable voltage supply, especially in portable and battery-powered devices.

Applications

• Portable Electronics: Powers key components in smartphones, tablets, and other handheld devices.
• Wireless Communication Devices: Provides stable power to transceivers, RF front-ends, and other communication ICs.
• Microcontroller Power: Regulates the voltage supply for microcontrollers in embedded systems.
• Post-Regulation for Switching Regulators: Used after a switching regulator to further reduce ripple and noise.
• Sensor Applications: Provides a clean and stable power source for sensors, ensuring accurate readings.

Features

• Low Dropout Voltage: Ensures 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 bulky and expensive tantalum or electrolytic capacitors.
• Short Circuit Protection: Protects the regulator and the load from damage in the event of a short circuit.
• Over-Temperature Protection: Shuts down the regulator when 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 small package, allowing for efficient use of board space.

Benefits

• Extended Battery Life: Low quiescent current and high efficiency contribute to longer battery life in portable devices.
• Improved System Reliability: Short circuit and over-temperature protection enhance system reliability and prevent damage.
• 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, simplifying the design process.
• Stable Power Supply: Provides a stable and regulated 4.0V output voltage, ensuring reliable operation of connected components.

Additional Details

The SC112CSK-4.0-TR operates with an input voltage typically between 4.2V and 5.5V. It offers excellent line and load regulation, maintaining a stable output voltage under varying input voltage and load conditions. 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 processes.