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S-1172B35-U5T1G

S-1172B35-U5T1G Description

The S-1172B35-U5T1G is a linear regulator IC designed for efficient power management applications. Manufactured by ABLIC Inc., this device is part of the Power Management IC (PMIC) category, offering a fixed output voltage of 3.5V and a maximum output current of 1A. The regulator is housed in a compact SOT89-5 package, making it suitable for surface mount applications. Despite its small form factor, the S-1172B35-U5T1G boasts a low dropout voltage of 0.1V at 300mA, ensuring high efficiency even at low input voltages. The device features an enable control function and includes over-current and thermal shutdown protection to safeguard against potential faults. With a maximum supply current of 90 µA and a quiescent current of just 1 µA, the S-1172B35-U5T1G is optimized for low power consumption. The regulator also exhibits a high power supply rejection ratio (PSRR) of 60dB at 1kHz, providing excellent noise suppression capabilities.

S-1172B35-U5T1G Features

• Fixed Output Voltage: 3.5V, ensuring stable power supply for various electronic components.
• High Efficiency: Low dropout voltage of 0.1V at 300mA, allowing the regulator to operate efficiently even with minimal input-to-output voltage difference.
• Low Power Consumption: Maximum supply current of 90 µA and quiescent current of 1 µA, making it ideal for battery-powered and energy-sensitive applications.
• Enable Control: Provides additional flexibility in power management by allowing the regulator to be turned on or off as needed.
• Protection Features: Over-current and thermal shutdown protection ensures the device remains safe and reliable under various operating conditions.
• Noise Suppression: High PSRR of 60dB at 1kHz, reducing the impact of input voltage noise on the output.
• Compact Design: SOT89-5 package is suitable for surface mount applications, conserving valuable board space.
• Compliance: REACH unaffected and ROHS3 compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for a wide range of manufacturing environments.

S-1172B35-U5T1G Applications

The S-1172B35-U5T1G is well-suited for a variety of applications where stable and efficient power supply is crucial. Its low dropout voltage and high PSRR make it ideal for portable electronic devices, such as smartphones, tablets, and wearable technology, where battery life and performance are paramount. The regulator's low power consumption and compact design also make it suitable for IoT devices, medical equipment, and industrial sensors, where space and energy efficiency are critical factors. Additionally, its enable control feature allows for dynamic power management in systems that require power sequencing or sleep modes.

Conclusion of S-1172B35-U5T1G

The S-1172B35-U5T1G is a robust and efficient linear regulator IC designed to meet the demands of modern power management applications. Its unique combination of low dropout voltage, high PSRR, and low power consumption sets it apart from similar models, making it an ideal choice for a wide range of electronic devices. Despite its obsolete status, the S-1172B35-U5T1G remains a reliable and effective solution for applications requiring a fixed 3.5V output and 1A current capability.