S-1155B40-U5T1G

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S-1155B40-U5T1G is a low-dropout linear regulator (LDO) designed according to a typical scheme of positive charge pump. It is one the various voltage regulators that are classified into the PMIC – Voltage Regulators – Linear category. This voltage regulator enables direct connection of input-output without complicated power sequencing setup. It can be easily used in systems requiring low-cost and low-power voltage regulation.

The working principle of S-1155B40-U5T1G involves the combination of two stages, namely the charge pump and the current regulator. The charge pump stage consists of two high-precision voltage references, the first one producing a high output voltage, and the second one forming a reference voltage. Both these of references are combined with the error amplifier and then connected to an adjustable output transistor. The output of this stage determines the voltage output of the regulator. The second stage includes an adjustable current regulator, which ensures the stability of the output voltage even under large variations in the supply voltage. This regulator also provides output current limit.

S-1155B40-U5T1G is designed for a variety of application fields, such as battery-powered devices, industrial embedded systems and automotive electronics. It is suitable for applications requiring a middle or low-power supply voltage. It offers the user various features such as a wide input voltage range, a low dropout voltage and low quiescent current. In addition, it is designed with a low-noise and a low-EMI architecture. It also provides excellent ripple rejection and transient response.

The S-1155B40-U5T1G is therefore ideal for many applications requiring efficient and economical voltage regulation. It is capable of delivering a steady voltage over a wide variety of conditions, and is relatively simple to setup and use in the most challenging environments. With its low noise and low EMI architecture, this voltage regulator is the perfect choice for applications that are sensitive to disturbances, including industrial embedded systems and automotive electronics.

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