S-1137A19-U5T1G

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Introduction

The S-1137A19-U5T1G is a voltage regulator in the exceptional PMIC (Power Management Integrated Circuit) family provided by Taiwan Semiconductor Manufacturing Company (TSMC). This device is a monolithic integrated circuit applied for demanding power conversion solutions in low voltage regulated application fields. This device offers excellent accuracy, fast transient response, high power efficiency and wide input voltage range operation. It also present superior ESD protection and low quiescent current. This device is designed to provide a good stability and long operating life.

Application Fields

The S-1137A19-U5T1G linear voltage regulator is ideal for powered electronic devices, such as consumer electronics, mobile equipment, telecom equipment, computers, industrial and automotive systems. It\'s especially suitable for point-of-load (POL) applications where higher output current and high output accuracy are needed. It is a perfect choice for applications that require low voltage operation and high efficiency, such as low-voltage DRAM, lithium-ion battery, etc. Other applications are 5V and 3.3V bus converters, low-select, low-voltage regulators, standby power and microprocessor cores.

Working Principle

The S-1137A19-U5T1G is designed based on a CMOS (complementary metal-oxide-semiconductor) process. This device works with an external series pass element and utilizes an internal error amplifier for voltage control, enabling high accuracy output voltage control. Its internal 80kHz fixed-frequency PWM (Pulse-width modulation) switching regulator can provide high conversion efficiency. With the internal thermal shutdown and short-circuit protection circuit, the device can protect itself against abnormal conditions such as over temperature or over current.

The input power is applied to the device and connected to the input and output pins. The S-1137A19-U5T1G then applies the current through the pass element, and then the voltage is regulated by the internal error amplifier. The regulated output voltage is then connected and discharged. The current limit circuit provides over-current protection, and the thermal shutdown circuit provides protection against over temperature events.

Conclusion

The outstanding features of the S-1137A19-U5T1G Linear Voltage Regulator make it a good choice for power conversion solutions in low voltage regulated application fields. It optimizes the performance with low voltage operation, high power efficiency, excellent accuracy, and fast transient response, while providing the highest level of safety and reliability. The internal error amplifier, thermal shutdown circuit and current limit circuit make it a very reliable device and suitable for various applications, such as consumer electronics, mobile equipment, telecom equipment, computers, industrial and automotive systems, etc.

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