S-1740A21-A6T2U4

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S-1740A21-A6T2U4 is a voltage regulator modulated by a Linear control loop. It is generally used in applications requiring stringent circuit noise control, improved transient response, superior line and load regulation, and better temperature stability. It offers a wide range of power supply voltage, can run in either the Boost, Buck or Buck/Boost mode, and can also work as a current regulator.

The working principle of a Linear voltage regulator is to control the voltage output by controlling the switching of transistors, that is, to control the opening and closing of transistors. The switching transistors are generally used in the following roles: close to reduce the output voltage, open up to increase the output voltage. For S-1740A21-A6T2U4, its switching transistors control current input to the inductor and output to the output capacitor. The reference of the Switching transistor is determined by the voltage output comparator IC, which keeps constant voltage output by adjusting the switching time of the power MOSFET according to changes in the load.

S-1740A21-A6T2U4 can be widely used in applications where high output accuracy, high efficiency and low-noise power supplies are needed. It is suitable for DC/DC applications such as telecommunication and computing. With the efficiency up to 91%, this voltage regulator is capable of operations at temperatures ranging from -40°C to 125°C. The higher temperature range allows more flexibility in applications located in harsh environment.

S-1740A21-A6T2U4 features low residual ripple voltage, which ensures that less voltage spikes and droops occur in the circuit. Its low quiescent current makes it a great choice for battery applications. This power supply system is also equipped with a variety of protective functions, such as over current protection and over voltage protection, which make it one of the safest and most reliable voltages regulators on the market.

In conclusion, S-1740A21-A6T2U4 is a voltage regulator modulated by a Linear control loop. It offers superior performance of stability, efficiency and noise control. With its wide range of power supply voltage and its protection functions, S-1740A21-A6T2U4 is an ideal choice for DC/DC applications such as telecommunication and computing. It is also suitable for applications in harsh environments.

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