S-8358E50MC-NTJT2G

PMIC - Voltage Regulators - DC DC Switching Controllers

The S-8358E50MC-NTJT2G voltage regulator is a type of DC-DC switching controller. It is designed for use in applications such as notebooks, tablets, and desktop computers. It is an integrated circuit (IC) that is used to regulate the voltage of a DC power supply by controlling the current flow from the input source to the output load. The S-8358E50MC-NTJT2G can be used to step up or step down the voltage depending on the input and output voltage requirements.

This device features a wide input voltage range of 6~20V DC and an adjustable output voltage of 0.6~5.5V DC. It also has programmable frequency between 500Hz to 4MHz, adjustable Soft Start time, and over-voltage, over-current, and thermal protection. The device operates at high efficiency and has a low shutdown current. It is also capable of operating in PFM or PWM mode. This switching controller can be used in applications with a wide range of power requirements from 5W to 30W.

Working Principle

The S-8358E50MC-NTJT2G switching controller works by periodically switching an electronic switch between the input voltage and the output voltage. The period of the switching frequency is adjustable from 500Hz to 4MHz and is controlled by the PWM signal from the controller. The Soft Start feature is designed to reduce the inrush current and to limit the output voltage rising slope to prevent over-voltage. The current and voltage sense pins are used to protect the controller from over current, over voltage and thermal conditions.

The integrated circuit contains an error amplifier, an internal clock generator, a power PWM, a voltage-reference module, and switching transistors. The error amplifier compares the output voltage to an internal reference voltage and generates an error voltage based on the difference between them. This error voltage is then used to generate the PWM signal which controls the power transistors. The switching transistors then generate the output voltage based on the PWM signal.

Application Field

The S-8358E50MC-NTJT2G is suitable for use in applications such as laptops, computers, and tablets that require a wide voltage range and high efficiency. It can also be used in CBT (Communication Base Transceiver) and Li-Ion battery chargers where precise voltage regulation is required. The S-8358E50MC-NTJT2G can also be used in LED illumination devices and LCD backlight displays. The adjustable switching frequency and the low shutdown current make this controller suitable for a range of different applications.