MP1567DK-LF-P

PMIC - Voltage Regulators - DC DC Switching Regulators

DC/DC switching regulators are reliable, efficient components designed for a wide range of applications; from providing power to consumer and automotive electronics to industrial systems. MP1567DK-LF-P is a type of DC/DC buck regulator. This power IC is designed to convert a variable input voltage to a regulated output voltage. It is relatively compact, providing high efficiency and low noise operation.

Overview

The MP1567DK-LF-P is a high-efficiency, high-performance, buck switching regulator suitable for a wide variety of different applications. It integrates two power MOSFETs as well as a dual-loop control PWM circuit, which is able to provide constant output voltage in the full load range. It also supports adjustable output current limiting, output voltage programming and various protection features such as over-temperature protection and short-circuit protection. The device is available in a thermally enhanced, 10-pin DFN package.

Applications

The MP1567DK-LF-P is designed for a wide range of applications, such as:

• Automotive electronics
• Battery-powered applications
• Consumer electronics
• Industrial systems

Features

The MP1567DK-LF-P offers several key features:

• Integrated dual-loop control PWM circuit
• High efficiency: up to 95%
• Built-in over-temperature protection
• Built-in output current limiting
• Wide input voltage range (2.5V - 30V)
• Low output ripple and noise

Working Principle

The MP1567DK-LF-P is designed to convert a variable input voltage to a regulated output voltage. It consists of two main building blocks - the power stage and the control circuit. The power stage consists of two power MOSFETs, two metal-oxide-semiconductor field-effect transistors (MOSFETs). These transistors act as switches, controlling the voltage at their outputs. The control circuit includes a control logic, voltage reference and error amplifier. This circuit regulates the output voltage of the MOSFETs by controlling the “on” and “off” cycles of the transistors.

The PWM circuit monitors the feedback voltage and compared it with the external programmed output voltage. It then adjusts the “on” and “off” cycles of the power MOSFETs to maintain the output voltage at the desired level. The input voltage is also continuously monitored. When the input voltage drops below a certain level, the switching regulator will automatically switch to a low-power, or sleep, mode to reduce the power consumption.

The MP1567DK-LF-P also comes with several protection features. It has built-in over-temperature protection, over-voltage protection, and under-voltage lockout protection. It also includes output current limiting and short-circuit protection.

Conclusion

The MP1567DK-LF-P is a high-efficiency, high-performance DC/DC buck switching regulator suitable for a wide range of applications. It is designed to convert a variable input voltage to a regulated output voltage. It integrates two power MOSFETs and a dual-loop control PWM circuit, and supports adjustable output current limiting, output voltage programming and various protection features such as over-temperature protection and short-circuit protection. The MP1567DK-LF-P is available in a thermally enhanced, 10-pin DFN package.