SC1112STRT

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The SC1112STRT is a special purpose voltage regulator from the PMIC (Power Management IC) category. It is a low voltage regulator using an Adjustable Output Low Dropout (LDO) architecture. This voltage regulator is specially designed to be used in Automotive Powertrain.

Application Field

The SC1112STRT is capable of delivering up to 6.0A of output current and adjustable output voltage from 1.25 V to 6.0 V which makes it suitable for various automotive applications like Motor Control, Thermal Management, and Lighting control systems. It is also suitable to provide voltage regulation in other industrial applications due to its wide input voltage range (3.0 V to 24.6 V).

Working Principle

The SC1112STRT uses an adjustable LDO topology. It has an internal voltage reference and maintains the output voltage at a programmable voltage based on the external resistor divider value. A wide range of supply current is allowed to pass through the device in order to meet different requirements. An internal voltage feedback loop is used to adjust and stabilize the output voltage. In order to achieve high efficiency, the output stage of the regulator is designed with low dropout, allowing the input voltage and the output voltage to stay within approximately 300 mV of each other.

The current-limit control of the SC1112STRT is set through an external resistor connected to the IS pin. When the output current reaches the limit set, the output will be disabled. In standby mode, the device consumes only 66 uA of quiescent current thus meeting the low-power requirements for automotive applications.

The SC1112STRT also includes an over-temperature protection feature to prevent it from thermal damage that can occur when the device is used in inappropriate environmental conditions. It also includes an integrated resistor divider network which can be used to sense the voltage applied to the input pin and then transfer the sensed voltage to its output to ensure consistent output voltage.

To conclude, the SC1112STRT is a special purpose voltage regulator from the PMIC (Power Management IC) category. It is designed to be used in Automotive Powertrain and other industrial applications. It operates on adjustable preset voltages and is highly efficient with an output voltage that can stay within approximately 300 mV of the input voltage. It is also designed with features like current limiting, over-temperature protection, and resistor divider network to provide a secure and stable output voltage.

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