MP1580HS-LF-Z

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DC DC switching regulators are integrated circuits commonly used to regulate the output voltage of power supply systems. They are used for power conditioning and voltage conversion, by regulating the voltage of the input and output power supply. The MP1580HS-LF-Z is a monolithic integrated DC-DC Buck converter ideal for applications requiring high efficiency, low power losses and a small footprint. It can deliver up to 1.7A of output current from a 2.5V to 5.5V input voltage range.

MP1580HS-LF-Z Application Field and Working Principle:

The MP1580HS-LF-Z is designed for use in mobile and hand held electronics, automotive applications and other applications where high efficiency, low power losses and small size are critical. It is capable of delivering up to 1.7A of output current and is ideal for use in applications such as LDOs, linear regulators, battery chargers and more.

The MP1580HS-LF-Z consists of two operational amplifiers, an oscillator, a P-channel MOSFET, an on-board compensation network, and current limit circuitry. It includes the functional blocks of a DC-DC buck converter, including two feedback loops, a linear regulator and a low dropout (LDO) regulator. The device operates in an open-loop mode and is protected by a thermal shutdown circuit. In addition, the MP1580HS-LF-Z offers a wide range of features, including cycle-by-cycle current limiting, overvoltage protection, and over-temperature protection. The device also offers a wide range of onboard adjustment capabilities, which make it suitable for custom applications.

The operating frequency of the MP1580HS-LF-Z is determined by an internal oscillator and can be adjusted by an on-board trimming resistor. The voltage control loop ensures the output voltage is accurately regulated. The current control loop ensures that the output current is regulated by a combination of the feedback loop and the MOSFET current sense signal. The MP1580HS-LF-Z is also capable of switching to a low quiescent current mode when the output voltage is below the set level, reducing power losses and improving efficiency.

In addition to the high efficiency, excellent thermal characteristics and low power losses of the MP1580HS-LF-Z, the device also offers the advantages of a low cost of ownership and low external component count. It is available in a range of packages, including TO-252 and D2PAK, allowing for flexibility in design. The device is RoHS compliant and is suitable for use in lead-free applications.

The MP1580HS-LF-Z is a versatile switching regulator with high efficiency, low losses and a small form factor. It is suitable for applications where space is at a premium and where efficiency and power losses need to be minimised. Its wide range of features make it well suited to a variety of scenarios and its low cost of ownership makes it a popular choice for many applications. In addition, its thermal characteristics, flexibility and wide range of packages make it an attractive option for designers.

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