LM5027MHX/NOPB

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The LM5027MHX/NOPB application field of DC DC Switching Controllers includes: Point of Load (POL) converters, high voltage converters with multiple output voltages, Inter-Integrated Circuit (I2C) bus driven converters, high frequency synchronous buck and buck-boost converters, as well as other wireless and industrial applications.

The LM5027MHX/NOPB is a high voltage (6V to 100V), three-phase, peak-current-mode controller for driving a wide range of low power DC-DC switch-mode converters. The device comes in a compact (6mm x 6mm) and can handle high frequency operation up to 600kHz. It combines reliable performance with excellent transient response to complicated load changes.

The LM5027MHX/NOPB has the following features: adjustable internal oscillator, adjustable ramp compensation control, 2A peak gate drive current, overload protection, undervoltage lockout (both on-chip digital Soft Start and Slow Start functions, programmable current limit with digital slew rate control, and precise 5V voltage reference.

The LM5027MHX/NOPB working principle is based on peak current mode operation. When the current reaches its predetermined peak level, then this peak current is continuously compared to a voltage reference. If the current remains below its peak level, then no action is taken. However, if a higher current is detected, then the controller reduces the duty cycle to reduce the current. This action prevents the converter from becoming overloaded and enabling the smoothest possible output regulation.

The LM5027MHX/NOPB has a wide dynamic range, with a wide range of input voltage options and a wide range of output current options. The controller also has adjustable output voltage ripple, allowing for more efficient regulation. In addition, the LM5027MHX/NOPB has a digital programmable frequency control system that allows for precise accuracy. The digital compensation circuit allows for automatic dynamic compensation of the control loops, with various adjustable parameters.

The LM5027MHX/NOPB also has many other features, including adjustable softstart, adjustable overvoltage protection, low shutdown current, and an auto-restart function. The device is optimized to allow for fast, reliable and efficient power conversion. It is designed to be used in a variety of applications, such as automotive, industrial, medical and communication systems. This device is also available in a through-hole version for easier prototyping and assembly.

The LM5027MHX/NOPB is a high voltage DC to DC controller, which can be used to drive a variety of DC to DC converters. It has a wide dynamic range, with a wide range of input and output voltage and current options, as well as adjustable output voltage ripple. It also has various adjustable parameters, such as digital frequency control, programmable softstart, and auto-restart, which allow for more efficient regulation. This device is designed to be used in a wide range of applications, and is available in both through-hole and surface mount versions for easier integration into projects.

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