S-812C25BMC-C4FT2U

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Introduction

S-812C25BMC-C4FT2U is an adjustable linear voltage regulator, developed by ON Semiconductor. It is one of the company\'s wide range of PMIC (Power Management Integrated Circuit) products. ON Semiconductor’s LDO (Low Dropout) type regulators are designed to provide excellent load transient response and low dropouts, making S-812C25BMC-C4FT2U an ideal voltage regulator solution for a variety of applications. The regulator is designed to allow independent voltage settings and can provide adjustable voltage outputs of up to 8A and 32V.

Applications

S-812C25BMC-C4FT2U is a versatile adjustable linear voltage regulator that can be used in a wide range of applications. It is suitable for low-noise linear voltage regulation and is popular for powering systems as well as providing power conditioning, as it is capable of delivering clean, noise-free outputs even under light load conditions. With its low clamping voltage and shutdown feature, the device is especially suited for a range of hand-held devices and other portable battery-powered operations such as cellular phones, PDAs, and medical electronics.

The device has been designed to provide low power dissipation under light load, allowing it to be used in a wide range of fixed voltage systems and motor control applications. With its adjustable output voltage, it can be used to minimize system power consumption in green electronics such as notebooks and netbooks.

Working Principle

The adjustable linear voltage regulator S-812C25BMC-C4FT2U is based on a design of a two-transistor current source. In this design, a single transistor is used as a current source, and the second is used to adjust the output voltage.

The voltage on the output of the regulator is controlled by the voltage on a voltage divider connected between the output and the reference pin. The output voltage can be set from 0.8V to the input voltage, with a maximum load current of 8A. The voltage on the reference pin is compared with the voltage on the voltage divider, and when there is a difference, the current source transistor adjusts the current flowing to the load, allowing the output voltage to remain stable.

The device also has a low input voltage clamping feature, which prevents any over-voltage conditions from occurring on the output. The clamping voltage can be set using a resistor and a capacitor connected to the device. Additionally, the device also has an enable pin, which is used to control the voltage regulator, enabling it to be disabled when it is not in use.

Conclusion

S-812C25BMC-C4FT2U is an adjustable linear voltage regulator developed by ON Semiconductor. It is suitable for providing low-noise linear voltage regulation and can deliver clean, noise-free outputs even under light load conditions. It can be used in a wide range of applications and it is designed to allow independent voltage settings with adjustable voltage outputs of up to 8A and 32V. This regulator is based on a two-transistor current source design, and has a low input voltage clamping feature as well as an enable pin for controlling the regulator.

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