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S-1172B33-U5T1G

S-1172B33-U5T1G Description

The S-1172B33-U5T1G is a linear regulator IC designed by ABLIC Inc., offering a fixed output voltage of 3.3V and a maximum output current of 1A. This device is housed in a compact SOT89-5 package, making it suitable for surface mount applications. Despite being marked as obsolete, it remains a reliable choice for power management in various electronic systems. The regulator features a low dropout voltage of 0.1V at 300mA, ensuring efficient power conversion even at low input voltages. It also includes essential protection features such as over-current protection and thermal shutdown, enhancing its reliability and safety in operation.

S-1172B33-U5T1G Features

• Output Type: Fixed, providing a stable 3.3V output voltage.
• Input Voltage Range: Up to 5.5V, allowing for flexibility in power supply options.
• Output Current: Capable of delivering up to 1A, suitable for a wide range of applications requiring moderate power.
• Low Dropout Voltage: 0.1V at 300mA, ensuring high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: 1 µA, minimizing power consumption in standby or low-load conditions.
• Low Supply Current: 90 µA, contributing to overall energy efficiency.
• Power Supply Rejection Ratio (PSRR): 60dB at 1kHz, providing excellent noise rejection and stable output voltage.
• Protection Features: Over-current protection and thermal shutdown ensure robustness and reliability.
• Control Features: Enable functionality allows for dynamic control of the regulator's operation.
• Compliance: ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for a wide range of manufacturing environments.
• Packaging: Tape & Reel (TR), facilitating automated assembly processes.

S-1172B33-U5T1G Applications

The S-1172B33-U5T1G is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices where power efficiency is crucial. The regulator's compact size and surface mount package also make it a good fit for space-constrained designs. Specific use cases include:

• Consumer Electronics: Portable devices, smartphones, and tablets.
• Industrial Equipment: Control systems, sensors, and actuators.
• Telecommunications: Base stations, routers, and other networking equipment.
• Automotive: In-car electronics, infotainment systems, and advanced driver-assistance systems (ADAS).

Conclusion of S-1172B33-U5T1G

The S-1172B33-U5T1G from ABLIC Inc. is a versatile and efficient linear regulator, offering a fixed 3.3V output with a maximum current of 1A. Its low dropout voltage and low quiescent current make it an excellent choice for applications where power efficiency and stability are paramount. Despite being marked as obsolete, its robust design and compliance with environmental standards ensure that it remains a reliable option for power management in various electronic systems.