ADP2138ACBZ-2.5-R7

Introduction

The ADP2138ACBZ-2.5-R7 is a switched-mode DC-DC regulator that has recently become available in the market place. It features a wide input range, low-noise, high-efficiency, and high-output current capability. This paper will discuss the application field, working principle and features of ADP2138ACBZ-2.5-R7 in the context of power management and voltage regulation.

Application Field

The ADP2138ACBZ-2.5-R7 is designed to be used as a general-purpose voltage regulator in all kinds of high-power applications such as computers, laptops, cellular phones, and automotive systems. It is especially suitable for applications requiring a high- output current rating with a low-voltage drop. This regulator can deliver up to 55A of continuous output current in a wide input range from 4.5V to 28V, making it ideal for a variety of applications.

Working Principle

The ADP2138ACBZ-2.5-R7 works by controlling the output voltage through constant switching of the MOSFETs. When the voltage of the output rises too high, the internal controller turns on the low-side MOSFET to discharge the energy stored in the inductor into the load. When the voltage at the output drops too low, the internal controller turns on the high-side MOSFET to inject energy from the input into the inductor. By continuously switching between the high and low-side MOSFETs, the output voltage is kept within a specific range, determined by the output voltage and current limit settings of the device.

Features

• Wide Input Voltage Range: The ADP2138ACBZ-2.5-R7 is capable of operating with a wide input range of 4.5V to 28V, making it suitable for a variety of applications.
• High-Efficiency: The ADP2138ACBZ-2.5-R7 can achieve up to 95% power conversion efficiency, greatly reducing the dissipated heat and reducing the size of the heat sink of the application.
• Low Output Voltage Ripple: The output voltage ripple of the ADP2138ACBZ-2.5-R7 is very low and adjustable by setting the SOP control mode.
• Integrated Protection Functions: The device is designed with a variety of safety and protection functions, including Overload, Over Voltage, Under Voltage, and Over-Temperature protection, making it suitable for a wide variety of applications.
• High Output Current: The ADP2138ACBZ-2.5-R7 is capable of delivering up to 55A of output current in a wide input range, making it ideal for high-power applications.

Conclusion

The ADP2138ACBZ-2.5-R7 is a switched-mode DC-DC regulator that is designed for effective power management and voltage regulation. It features a wide input voltage range, high-efficiency, low-noise, high output current capability, integrated protection functions and adjustable output voltage ripple. The ADP2138ACBZ-2.5-R7 is ideal for all kinds of high-power applications such as computers, laptops, cellular phones, and automotive systems.