S-8357H30MC-NMPT2U

The S-8357H30MC-NMPT2U is a high-efficiency DC/DC switching controller intended for use in a wide range of medium and high power applications, such as LED lighting and computing systems. It is a highly integrated synchronous buck controller that supports up to 6 A of output current, and has PWM, 4-bit I2C, and SPI interfaces. The device utilizes a BiCMOS process technology, and is suitable for use in both continuous and step-down applications.

Features:

• High-efficiency, low-cost synchronous buck controller
• Input voltage range: 4V-36V
• Output voltage range: 0.6V-18V
• Typical efficiency of up to 98.1%
• Supports up to 6A of continuous output current
• Built-in switching frequency synchronization.
• Integrated protection and diagnostic features
• Supports PWM and I2C/SPI control

Applications:

• Low power computing systems, such as mini PCs and embedded computers
• Portable consumer electronics
• Digital avionics systems
• LED lighting
• Wireless charging systems

Working Principle:

The S-8357H30MC-NMPT2U is a synchronous buck controller that uses a PFM or PWM control to regulate a fixed or adjustable output voltage. The device features built-in switching frequency synchronization, which helps to reduce noise, EMI radiation, and switching losses in high frequency synchronous resonant converter applications. Additionally, the device features a wide range of protection features, such as over-voltage protection, under-voltage lockout, over-temperature protection, short-circuit protection, and constant-on time control.

The device is also equipped with an I2C/SPI interface for remote control and monitoring. This enables the S-8357H30MC-NMPT2U to be used as a building block in a larger system that is highly integrated with other components (e.g. external MOSFETs). This makes it ideal for applications where space and cost are a concern.