S-1701A3328-M5T1G

The S-1701A3328-M5T1G is a member of Texas Instruments’ family of specialized voltage regulators. With the purpose to meet the system requirements of variable power supply, it is specially designed for automotive applications. The key features of this product include a low RDS\'s, low quiescent current, very low dropout voltage, high power supply rejection ratio (PSRR), high efficiency and guaranteed 3% accuracy.The S-1701A3328-M5T1G has been designed to provide efficient, economical and reliable power supply solutions for automotive DC-DC converters, battery chargers and electric power steering (EPS) systems. This voltage regulator is primarily intended for use in automotive and industrial applications, where high reliability and robustness requirements must be met.The S-1701A3328-M5T1G is a buck regulator that accepts an input voltage of VBATT and provides a regulated output voltage of VOUT, while maintaining a regulated current limited and short-circuit protected output. It is designed such that when the output voltage is above the set-point, it reduces the output voltage until it is below the voltage set-point. The output current is limited by the internal current limit circuit and the output voltage is kept within a specified range of the set-point due to the hybrid compensation circuitry. The reverse current at the output is blocked by an internal diode.The S-1701A3328-M5T1G is a monolithic integrated circuit, thus the entire regulator circuit can be formed by with only the S-1701A3328-M5T1G. The output voltage is well-regulated when the input voltage and output load swing, due to the use of efficient and precise error amplifiers as well as a precise reference voltage. Moreover, the S-1701A3328-M5T1G is protected against thermal and input voltage overload conditions, as well as over-voltage and under-voltage conditions.The S-1701A3328-M5T1G utilizes a power-MOSFET switch to convert the input voltage to the output voltage. The MOSFET switch is operated in a pulse-width modulated (PWM) control mode. The control signal for the MOSFET switch is generated by the internal error amplifier and oscillator circuit. The pulse-width modulated (PWM) signal is then converted to a current signal by the internal power stage. This current signal then passes through the inductor and then finally goes to the output pin.The S-1701A3328-M5T1G utilizes a fly-back diode, in order to protect the power MOSFET from excessive voltage ahead of it and to reduce the voltage stress on the MOSFET. The diode also helps to reduce the output ripple by providing a path for the current when the MOSFET is in the off-state. In addition, the hysteretic control modulation of the power MOSFET helps to reduce the output ripple and improves the load transients response of the S-1701A3328-M5T1G.Overall, the S-1701A3328-M5T1G is an excellent choice for applications where high efficiency, low quiescent current, and high power supply rejection ratio (PSRR) are required, such as automotive DC-DC converters, battery chargers and electric power steering (EPS) systems. It is designed to meet the stringent requirements of automotive applications, and its advanced features helps to increase reliability and power supply efficiency.