S-1323B35PF-N8UTFU

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S-1323B35PF-N8UTFU: Application Field and Working Principle

The S-1323B35PF-N8UTFU is a linear voltage regulator designed specifically for applications requiring superior accuracy, stability and monotonicity to output voltage. It is a specified, two-terminal programmable low-dropout (LDO) voltage regulator that works within a wide input voltage range of 2.7V to 5.5V. It is widely used in various electrical and electronic systems, such as microprocessors, cellular phones, tablet PCs, portable audio and video players and electric vehicles charging systems, for providing constant and stable output voltage.

Application Field

This S-1323B35PF-N8UTFU voltage regulator can be used in many kinds of systems and equipment where it is necessary to provide a constant, accurate and stable output voltage. It is often used in mobile devices like cellular phones and portable audio/video players. It is also used as a voltage regulator in electric vehicles charging systems. Furthermore, it is also used in microprocessors, data acquisition systems, laser printers and ATM machines.

Working Principle

This voltage regulator works on the principle of a differential amplifier. The output voltage of this regulator is determined by an internal reference voltage and two external resistors. The two resistors, R1 and R2, form a voltage dividers. The voltage at the junction of the two resistors is compared with the reference voltage in the differential amplifier. The error voltage, which is the difference between the voltages of the junction of the two resistors and the reference voltage, is connected to the base terminal of the transistor, through which the output current flows.

The output current is then regulated by controlling the base current of the transistor. The output voltage is kept constant if this regulating current is small and thus the output voltage is small. The circuit is stable and monotonic, since the base current does not change rapidly.

Conclusion

The S-1323B35PF-N8UTFU is an excellent linear voltage regulator designed for applications requiring superior accuracy, stability and monotonicity to output voltage. It is widely used in various electrical and electronic systems, such as microprocessors, cellular phones, tablet PCs, portable audio and video players and electric vehicles charging systems, for providing constant and stable output voltage. It works on the principle of a differential amplifier, using two external resistors that form a voltage dividers and the error voltage is connected to the base terminal of the transistor.

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