S-1172B47-U5T1U

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Introduction

The S-1172B47-U5T1U is a linear voltage regulator designed specifically to provide high-efficiency voltage regulation solutions in a variety of industrial applications. The S-1172B47-U5T1U is a 0.8A low dropout, high performance, low input/output voltage linear regulator with fully-adjustable output voltage range of 1.25V to 5.5V.

Application Fields

The S-1172B47-U5T1U is an ideal choice for applications such as power supplies, audio systems, and automotive electronics. It can also be used to improve the performance of many types of devices by providing stable and consistent power to the device.

The S-1172B47-U5T1U is designed for use in computer systems and communications equipment. It provides excellent noise immunity, allowing for reliable operation in high-noise environments. This makes it ideal for applications such as electronic system cabinet installations and data centers.

The S-1172B47-U5T1U can also be used in industrial equipment, including industrial controllers and motor starters. Its low input voltage capabilities make it suitable for operating in harsh environments with unstable power supplies.

Working Principles

The S-1172B47-U5T1U employs a voltage regulator circuit that uses a series of linear voltage regulators and transistors to regulate the output voltage. The output voltage is determined by the difference between the input and the output voltages. The regulator is designed to maintain a constant output voltage regardless of the load or input voltage changes.

The regulator is activated by the enable pin, which allows the regulator to be turned ON and OFF by external control. The enable pin is active low, meaning that the voltage regulator is enabled when the enable pin is driven low or left floating. The enable pin can also be used to modify the output voltage.

The S-1172B47-U5T1U features an internal sense resistor that monitors the remote output voltage. The sense resistor acts as a voltage divider, and its value is controlled by the external control pin. The control pin can be adjusted to obtain a specific output voltage.

The S-1172B47-U5T1U also features an external resistor to adjust the load current limit. This limit should be kept below the maximum load current limit of the regulator. The external resistor can be used to limit the load current and protect the device from damage caused by overcurrents.

Features & Advantages

The S-1172B47-U5T1U offers several advantages for applications that require low thermal resistance and low input/output voltage linear regulators. Some of the features and advantages of this voltage regulator include:

• Low thermal resistance, allowing for cooler and efficient operation
• Fully-adjustable output voltage range of 1.25V to 5.5V
• Low input voltage, ideal for unstable power supply environments
• External control and sense pins for voltage and current regulation
• High noise immunity

Conclusion

The S-1172B47-U5T1U voltage regulator is a low power, low noise, high-efficiency regulator suitable for a variety of industrial applications. Its fully-adjustable output voltage range, low input voltage capabilities, and adjustable current limit make it an ideal choice for powering devices under various environments. The S-1172B47-U5T1U is designed to provide reliable, efficient, and effective power to electronic systems and communications equipment.

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