NPH10S2405IC

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DC-DC converters are voltage converters that convert a certain DC voltage to another DC voltage. The NPH10S2405IC is a DC-DC converter specifically designed to step down a given voltage into a lower DC voltage. It is a wide-input, high-efficiency switching regulator and uses synchronous rectification to provide energy savings.

Overview of the NPH10S2405IC

The NPH10S2405IC is an internal low-dropout linear regulator, operating from an input supply range of 4.5V to 36V and with an output current up to 1A. It is a single output device, featuring up to 8 integrated power FETs and 1-Ohm high-side and 2-Ohm low-side MOSFET switches that help to reduce external component count and improve the system’s overall efficiency. In addition, the device includes an adjustable soft-start feature that can be configured to generate a smooth start-up providing a more stable output voltage.

Application Field

The NPH10S2405IC has a wide input voltage range and a high efficiency making it suitable for a variety of applications. It is particularly suitable for automotive industry applications such as light-emitting diode (LED) and halogen-based automotive lighting, providing a constant regulated voltage for efficient operation and up to 8 integrated power FETs. Additionally, the NPH10S2405IC can be used for industrial applications such as wireless base station equipment, broadcast and digital TV systems, and high-performance cellphones.

Working Principle

The NPH10S2405IC is designed to provide a continuous output voltage by using synchronous rectification. The device has an integrated voltage regulator that continuously compares the output voltage to reference voltage, and then modulates the on-time of the power MOSFETs to determine the output current. The output voltage is determined by the input voltage, the output current, and the inductor and capacitor values. The NPH10S2405IC also has an adjustable soft-start function, which can be used to slowly increase the output current during start-up.

Additionally, the device has a power good signal which signals the controller that the output voltage is within the specified range when the power good signal is high. When the output voltage falls out of the specified range, the power good signal is driven low. The NPH10S2405IC also has integrated ESD and over-temperature protection.

Conclusion

The NPH10S2405IC is an internal low-dropout linear regulator designed to efficiently convert a given DC voltage to another. It has a wide input voltage range, a high efficiency, 8 integrated power FETs, an adjustable soft start feature, and a power good signal. The device can be used for a variety of applications including automotive and industrial, and it is important to ensure that all components are properly selected to ensure optimal performance.

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