The S-1135B33-M5T1S is a positive voltage regulator IC manufactured by SII Semiconductor Corporation. It is a low-dropout (LDO) regulator designed to provide a stable and accurate 3.3V output voltage, even with variations in input voltage and load conditions. It features low current consumption and integrated protection circuits.

Applications

• Powering microcontrollers in IoT devices
• Voltage regulation for sensors and transducers
• Power supply for low-power communication modules (e.g., Bluetooth Low Energy)
• Voltage regulation in portable medical devices
• Power source for wearable electronics

Features

• Input Voltage Range: 2.0 V to 5.5 V
• Output Voltage: 3.3 V (fixed)
• Output Voltage Accuracy: ±1.0%
• Dropout Voltage: 160 mV @ 100 mA
• Quiescent Current: 5.0 μA (typical)
• Output Current: 150 mA
• Overcurrent Protection: Built-in overcurrent protection
• Thermal Shutdown Protection: Built-in thermal shutdown
• Package: SOT-23-5

Benefits

• Stable 3.3V Output: Provides a consistent and reliable 3.3V power supply.
• High Accuracy: The ±1.0% output voltage accuracy ensures precise voltage regulation.
• Low Power Consumption: The low quiescent current helps extend battery life in portable applications.
• Overcurrent Protection: Protects the regulator and connected circuitry from damage due to overcurrent conditions.
• Thermal Shutdown: Prevents the regulator from overheating and failing.
• Compact Size: The SOT-23-5 package makes it easy to integrate into small devices.

The S-1135B33-M5T1S LDO regulator is designed for use in a wide range of portable and battery-powered applications. Its low dropout voltage allows it to operate efficiently even when the input voltage is close to the output voltage. The built-in overcurrent and thermal shutdown protection features contribute to the device's reliability and prevent damage under fault conditions. The small SOT-23-5 package facilitates easy integration into compact electronic designs. This part is frequently used as a stable voltage source for microcontrollers, memory devices, and other low-power integrated circuits in various electronic systems.