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PMIC - Voltage Regulators - DC DC Switching Regulators

The MP1583DN-LF-Z is an integrated device designed for a variety of power management needs. It is a highly efficient DC/DC synchronous buck switching regulator, designed for a wide range of applications, from consumer electronics to automotive electronics and industrial automation. It is widely used in consumer electronics, automobiles, computers and other electronic products, and can be widely used in power supplies, DC/DC converters, and server appliance power supplies.

Application Field

The MP1583DN-LF-Z is a highly efficient, low-cost, and low-profile DC/DC Sync Buck switching regulator, providing a wide user adjustable output range up to 10A and an excellent load and line regulation performance, also offering superior transient response, high switching frequency, and fast output settling time. It is suitable for a wide range of applications, including consumer electronics, cars, computers, and other peripheral electronics.

The MP1583DN-LF-Z enables efficient power management in applications such as notebook adapters, workstations, routers and media players. It delivers a wide adjustable output voltage range of 1.5V to 18V, making it suitable for various low current DC/DC microprocessors, DDR memory power converters and power supplies.

The MP1583DN-LF-Z is an ideal solution for Point of Load power conversion. It can deliver up to 10A of output current and offers an excellent load regulation performance. It provides superior transient response capability for fast output settling time and is designed to meet stringent requirements for Power over Ethernet (PoE) applications.

The MP1583DN-LF-Z is versatile and provides an easy integration into a host system environment. It is functionally compatible with the industry standard Pin Field bus, allowing easy and flexible access to SPI, I2C and PMBUS bus interfaces.

Working Principle

The MP1583DN-LF-Z is based on a DC/DC Synchronous Buck switching regulator, which is a type of switching power supply with high efficiency and low noise characteristics. It includes a fixed frequency, voltage mode, synchronous buck controller and a low side MOSFET switch. The controller receives the voltage input, and then switches on and off periodically to reduce the output voltage, in order to regulate the current.

The voltage input is coupled via the on-board switch (internal, external or a logic) to control the on/off cycle of the switching regulator. During each cycle, a certain amount of current is transferred from the input voltage to the output voltage, depending on the Duty Cycle being set. The Duty Cycle is a ratio, expressed in a percentage, of the switching time “on” to the switching time “off”.

The MP1583DN-LF-Z ensures a regulated output voltage across the output voltage range, and maintains the regulated voltage regardless of the load or input voltage. The switching frequency can be adjusted by a trimpot to control noise, power and thermal dissipation, ensuring excellent system efficiency.

The MP1583DN-LF-Z also includes a unique feature–Adaptive Body Diode, which provides additional protection against over-current and over-voltage conditions. The integrated device is fully protected against over temperature, over current, reverse current and under voltage lockout conditions.

The MP1583DN-LF-Z is a highly reliable switching regulator, which is both efficient and flexible. Its comprehensive feature set makes it suitable for an extensive range of applications, from consumer electronic power supplies to automotive power converters and industrial automation systems.

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