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S-1172B33-U5T1U

S-1172B33-U5T1U Description

The S-1172B33-U5T1U is a linear regulator IC designed by ABLIC Inc., a leading manufacturer in the power management integrated circuit (PMIC) category. This IC is specifically engineered to provide a fixed output voltage of 3.3V with a maximum output current of 1A. It is housed in a compact SOT89-5 package, making it suitable for surface mount applications. Despite its small form factor, the S-1172B33-U5T1U boasts a maximum input voltage of 5.5V and a dropout voltage of only 0.1V at 300mA, ensuring efficient power delivery even under varying load conditions.

S-1172B33-U5T1U Features

• Output Type: Fixed, providing a stable 3.3V output voltage.
• Input Voltage Range: Up to 5.5V, offering flexibility in power supply options.
• Output Current: Capable of delivering a maximum of 1A, suitable for a wide range of applications requiring moderate power.
• Low Dropout Voltage: A maximum dropout voltage of 0.1V at 300mA ensures high efficiency, especially in low-voltage applications.
• Low Quiescent Current: Only 1 µA, minimizing power consumption during standby or low-load conditions.
• Enable Control Feature: Allows for dynamic control of the regulator's operation, enhancing power management capabilities.
• Protection Features: Over-current protection and thermal shutdown ensure reliable operation and protect against potential faults.
• High PSRR: 60dB at 1kHz, providing excellent noise rejection and clean output voltage.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level: MSL 1 (Unlimited), making it suitable for various manufacturing environments without additional handling precautions.

S-1172B33-U5T1U Applications

The S-1172B33-U5T1U is ideal for a variety of applications where a stable and efficient power supply is required. Its compact size and low dropout voltage make it particularly suitable for portable and battery-powered devices. Some specific use cases include:

• Consumer Electronics: Ideal for powering microcontrollers, sensors, and other low-power components in devices such as smartphones, tablets, and IoT devices.
• Medical Devices: Suitable for portable medical equipment where reliability and low power consumption are critical.
• Industrial Systems: Can be used in control systems and instrumentation where a stable 3.3V supply is needed.
• Automotive Applications: Applicable in various automotive electronic systems, including infotainment and control modules, due to its robust protection features and compliance with industry standards.

Conclusion of S-1172B33-U5T1U

The S-1172B33-U5T1U from ABLIC Inc. stands out as a high-performance linear regulator IC, offering a unique combination of low dropout voltage, low quiescent current, and robust protection features. Its fixed 3.3V output and 1A current capability make it versatile for a wide range of applications, particularly in portable and low-power systems. Despite being marked as obsolete, the S-1172B33-U5T1U remains a reliable choice for engineers and designers seeking a compact and efficient power management solution.