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S-1172B25-U5T1U

S-1172B25-U5T1U Description

The S-1172B25-U5T1U is a linear regulator IC designed by ABLIC Inc., offering a fixed output voltage of 2.5V and a maximum output current of 1A. This device is housed in a SOT89-5 package, making it suitable for surface mount applications. Despite its small form factor, the S-1172B25-U5T1U boasts a low dropout voltage of 0.15V at 300mA, ensuring efficient power conversion even at low input voltages. The regulator features a maximum input voltage of 5.5V and a quiescent current of just 1 µA, contributing to its high efficiency and low power consumption. Additionally, it includes an enable control feature and protection mechanisms such as over-current and thermal shutdown, enhancing its reliability and versatility.

S-1172B25-U5T1U Features

• Output Type: Fixed at 2.5V, providing a stable and reliable power supply for various electronic components.
• Input Voltage Range: Up to 5.5V, allowing flexibility in power source selection.
• Output Current: Capable of delivering up to 1A, making it suitable for applications requiring moderate power levels.
• Low Dropout Voltage: A maximum of 0.15V at 300mA ensures efficient operation even when the input voltage is close to the output voltage.
• Low Quiescent Current: At just 1 µA, the S-1172B25-U5T1U minimizes power consumption in standby mode.
• Enable Control: Provides additional control over the regulator's operation, enabling power-saving modes and dynamic control.
• Protection Features: Over-current and thermal shutdown protections ensure the device's longevity and reliability under various operating conditions.
• High PSRR: A Power Supply Rejection Ratio of 65dB at 1kHz helps in filtering out noise from the input power supply, resulting in cleaner output voltage.
• Compliance: The device is REACH unaffected and ROHS3 compliant, meeting environmental and regulatory standards.
• Packaging: Available in a Tape & Reel (TR) package, facilitating easy handling and integration into automated manufacturing processes.

S-1172B25-U5T1U Applications

The S-1172B25-U5T1U is ideal for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices and systems where power efficiency is crucial. Some specific use cases include:

• Portable Electronics: Ideal for powering devices such as smartphones, tablets, and wearable technology where battery life and compact design are paramount.
• Consumer Electronics: Suitable for applications like digital cameras, media players, and other consumer devices that require a reliable and efficient power supply.
• Industrial Equipment: Can be used in various industrial applications where a stable power source is needed, such as sensors, controllers, and embedded systems.
• Medical Devices: Applicable in medical equipment where low power consumption and high reliability are essential, such as portable diagnostic devices and monitoring systems.

Conclusion of S-1172B25-U5T1U

The S-1172B25-U5T1U is a versatile and efficient linear regulator IC that offers a fixed 2.5V output and a maximum output current of 1A. Its low dropout voltage, low quiescent current, and enable control feature make it an excellent choice for applications requiring high efficiency and power savings. The inclusion of over-current and thermal shutdown protections ensures reliable operation under various conditions. Despite being marked as obsolete, the S-1172B25-U5T1U remains a valuable component for designers seeking a compact, efficient, and reliable power management solution.