S-8351B25MA-J4KT2G

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The S-8351B25MA-J4KT2G is a high efficiency and low noise voltage regulator ideal for use in a variety of applications including portable electronics, automotive and industrial automation. This voltage regulator uses a DC-DC switching regulator to regulate the output voltage to within a certain range, and is suitable for switching between various input voltages.

Features

• Wide input voltage range of 2.3 V to 6.5 V.
• High output voltage accuracy of ±1.5%.
• Low output noise of 10.8 mVrms.
• High efficiency of up to 91.5%.
• Low quiescent current of only 11 μA.
• Built-in protection circuits to prevent overcurrent, overvoltage, and overtemperature shutoffs.

Application Field

The S-8351B25MA-J4KT2G is ideal for use in applications that require efficient, low noise regulation. It can be used for portable consumer electronic devices such as music players and mobile phones, industrial/automation systems such as motor controllers, industrial lighting, and security systems, and more. In addition, the high efficiency of this regulator means that it is suitable for applications that need to operate for extended periods of time in high temperature environments.

Working Principle

The S-8351B25MA-J4KT2G voltage regulator uses a buck converter topology with an internal switch. The device is designed to switch between input voltages while maintaining a constant output voltage. The voltage regulator works by taking the input voltage and converting it to a desired output voltage, typically a lower voltage than the input. The device consists of an input rectifier, an active switch, an output diode, a coil, a capacitor, and a control circuit.

The input voltage is rectified and then applied to the active switch, usually a MOSFET. The switch is then driven by the regulator’s control circuit to alternately connect and disconnect the input voltage. As the switch is driven on and off, the input voltage is converted to an output voltage by the coil and capacitor.

The device is designed to reduce output noise by adding a small amount of charge to the coil when the switch is turned off. This allows for smooth transition between the different input voltages, leading to lower output noise. The device is also designed with a current limiting circuit, which will protect the device from overcurrent and overvoltage faults.

The S-8351B25MA-J4KT2G is an efficient and reliable voltage regulator that is ideal for a variety of applications. Its high efficiency and low noise output make it a great choice for a variety of DC-DC switching regulator applications.

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