S-1170B46UC-OUFTFG

S-1170B46UC-OUFTFG Application Field and Working Principle

S-1170B46UC-OUFTFG is a low dropout, low noise, linear voltage regulator from PMIC (Power Management IC). It is a high current, low dropout, fast transients response linear regulator. The output current of this voltage regulator is up to 1.5A and the drop-out is as low as 350mV@ 1A. It features low noise, fast transient response, high precision output voltage and superior output current capability.

Application Field

This voltage regulator is designed for power supply applications in consumer electronics, industrial, automotive, telecom and medical applications. With its high current and low dropout capability, it is suitable for powering applications with low voltage microprocessors, memories and other related integrated circuits. It is also suitable for post-processing and distribution circuits which requires low noise and high efficiency.

Working Principle

The S-1170B46UC-OUFTFG voltage regulator is based on a linear regulator architecture and works on the principle of bipolar transistor-based current mirror. It provides guaranteed current and voltage regulation even under heavily load transient conditions. The output voltage can be adjusted from 1.5V to 13.2V by adjusting the voltage reference value.

The linear regulator uses a reference voltage generator, an error amplifier and a current mirror for setting the duty cycle of the series pass transistor. The reference voltage is compared with the voltage feedback, and the error amplifier drives the series pass transistor to turn on and off in order to achieve the desired output voltage.

The current mirror provides a conductor to accurately control the current flowing through the pass transistor. This helps to reduce the output voltage ripple and maintain a stable output voltage.

Advantages

The S-1170B46UC-OUFTFG is ideal for various applications due to its low noise, high current and fast transient response. It is also more efficient than other linear regulators. Its low drop-out and fast response allow the device to respond quickly to the load conditions and maintain the output voltage. It is also very efficient in power management applications.

The S-1170B46UC-OUFTFG also has a wide range of application fields and can be used to power consumer electronics, industrial, automotive, telecom, and medical applications. It is also very suitable for post-processing and distribution circuits which require low power consumption and high efficiency.