The TCR5SB47 is a low-dropout (LDO) regulator manufactured by Toshiba Semiconductor and Storage. This regulator is designed to provide a stable 4.7V output voltage, making it suitable for various electronic devices requiring a precise and regulated voltage supply.

Applications

• Microcontroller Power Supplies: Provides a stable 4.7V supply for microcontrollers and associated circuitry.
• Sensor Power: Powers sensors that require a 4.7V supply.
• Portable Devices: Used in various portable electronic devices to maintain consistent power.
• Data Acquisition Systems: Provides a clean and regulated voltage for data acquisition components.
• Wireless Communication Modules: Regulates the power for RF transceivers and modules.
• Industrial Control Systems: Powers control and monitoring circuits.

Features

• Low Dropout Voltage: Maintains stable output even with a small input-output voltage difference.
• Low Quiescent Current: Minimizes power consumption when in standby mode.
• Overcurrent Protection: Protects the regulator and load from excessive current draw.
• Overheat Protection: Thermal shutdown feature prevents damage from overheating.
• Small Package: Available in small surface-mount packages for space-constrained applications.
• Fixed Output Voltage: Provides a stable and precise 4.7V output voltage.

Benefits

• Stable Power Supply: Ensures consistent voltage for sensitive electronic components.
• Extended Battery Life: Low quiescent current helps prolong battery life in portable devices.
• Protection Against Faults: Overcurrent and overheat protection enhance system reliability.
• Compact Design: Small package size allows for integration into small devices.
• Simplified Design: Fixed output voltage simplifies power supply design.

Additional Details

The TCR5SB47 LDO regulator typically operates with an input voltage range slightly above 4.7V (e.g., 4.8V to 5.5V). It provides a fixed output voltage of 4.7V with high accuracy. The device is commonly available in small surface-mount packages such as SOT-25. The operating temperature range typically spans from -40°C to +85°C. The output current capability is typically in the range of 300mA to 500mA, depending on the specific variant and operating conditions. External input and output capacitors are required for stability; consult the datasheet for recommended capacitor values and ESR characteristics. The overcurrent protection threshold is typically set above the rated output current to provide a safety margin. Thermal shutdown occurs at a temperature typically around 150°C.