The TCR5SB41U is a low-dropout (LDO) regulator manufactured by Toshiba Semiconductor and Storage. Designed to provide a stable 4.1V output, this regulator is commonly used in a variety of electronic devices that require a precise and regulated voltage supply.

Applications

• Smartphones: Powers specific ICs or sub-circuits requiring 4.1V.
• Wireless Communication Equipment: Supplies clean power to transceivers and RF front-ends.
• Portable GPS Devices: Regulates the power supply for GPS modules.
• Data Loggers: Provides a stable voltage source for data acquisition and storage systems.
• Sensor Networks: Powers sensors and communication nodes in wireless sensor networks.
• Industrial Control Systems: Provides reliable voltage for control circuitry.

Features

• Low Dropout Voltage: Ensures stable output voltage even when the input voltage is close to the output.
• Low Quiescent Current: Minimizes power consumption in standby or no-load conditions.
• Overcurrent Protection: Protects the device and the load from damage due to excessive current.
• Overheat Protection: Thermal shutdown feature prevents overheating and potential damage.
• Small Package: Available in compact surface-mount packages, suitable for small devices.
• Fixed Output Voltage: Provides a precise and stable 4.1V output.

Benefits

• Stable Power Supply: Ensures reliable operation of sensitive electronic components.
• Extended Battery Life: Low quiescent current improves energy efficiency in portable devices.
• Protection Against Faults: Overcurrent and overheat protection increase system robustness.
• Compact Design: Small package size allows for integration into space-constrained applications.
• Simplified Circuit Design: Fixed output voltage simplifies power supply design.

Additional Details

The TCR5SB41U LDO regulator operates with a typical input voltage range of 4.2V to 5.5V. It offers a stable and accurate 4.1V output voltage. This device is commonly available in a small surface-mount package such as SOT-25. The operating temperature range typically spans from -40°C to +85°C. The output current capability typically ranges from 300mA to 500mA, but this depends on the specific operating conditions and the version of the IC. External input and output capacitors are necessary for stability; consult the device datasheet for recommended capacitor values and ESR specifications. The overcurrent protection is generally set to activate slightly above the rated output current. The thermal shutdown temperature is typically around 150°C.