MAX5021EUA-T

Frequency - Switching:	262kHz
Base Part Number:	MAX5021
Supplier Device Package:	8-uMAX
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	--
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	50%
Series:	--
Voltage - Supply (Vcc/Vdd):	11 V ~ 28 V
Output Phases:	1
Number of Outputs:	1
Topology:	Flyback, Forward Converter
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The MAX5021EUA-T is a high-speed synchronous buck switching regulator control integrated circuit, or PMIC, produced by Maxim Integrated Products. It is part of Maxim’s family of DC-DC switching controllers, and is designed to maintain a steady and consistent supply of power from one DC source to another. As such, it can be used to help regulate sunlight-based panels or wind-generated electricity, for example. In this article we’ll examine the application field for this device, and its working principles.

What Is a PMIC?

PMIC stands for power management integrated circuits. These are complex devices that help to efficiently manage the flow of power within a system. They perform multiple tasks, such as controlling the current, supplying the necessary voltage to different system components, and synchronizing them with each other. PMICs are usually integrated into a wider power management scheme and can be used in a range of applications, from consumer electronics to industrial automation.

What Is a DC-DC Switching Controller?

A DC-DC switching controller is a type of PMIC that helps to regulate the flow of power from a DC power source. It does this by using switch mode power supply (SMPS) technology. This type of circuit uses transistors to switch the power on and off in an alternating pattern, providing a steady and consistent supply of power. This type of regulation is used in applications where high efficiency is needed, such as when powering a mobile device, for example.

What Is the MAX5021EUA-T?

The MAX5021EUA-T is a DC-DC switching controller from Maxim Integrated Products. It is designed to provide a highly efficient, fast and stable power supply from one DC source to another. It takes an input voltage at an input range of 2.6V to 5.5V, and its output voltage range is 0.6V to 3V. It features an adjustable output voltage, and has a wide operating temperature range, making it suitable for a variety of applications.

What Is its Application Field?

The MAX5021EUA-T is ideal for applications where power must be efficiently transferred from one DC source to another, such as to and from a battery. It is particularly well suited for use in renewable energy systems, such as solar panels or wind turbines, where a reliable and fast switching rate is required. Its high efficiency also makes it well suited for use in portable applications, such as for powering mobile devices, as it minimizes power loss and ensures consistent performance.

How Does It Work?

The MAX5021EUA-T uses a synchronous buck converter topology. A buck converter works by converting a higher input voltage to a lower output voltage by utilising the equation: Vout = Vin x Duty Cycle. This is achieved through the switching of two transistors in an alternating pattern. This switching process is controlled by a PWM signal, which is defined by the input voltage compared to the output voltage. The MAX5021EUA-T\'s input voltage is monitored by an internal high-speed comparator and the PWM signal is subsequently generated by a high-frequency oscillator. This PWM signal is then used to switch the two transistors, resulting in the desired output voltage.

Conclusion

In summary, the MAX5021EUA-T is a high-speed synchronous buck switching regulator control integrated circuit, or PMIC, classed as part of Maxim’s family of DC-DC switching controllers. It is designed to maintain a steady and consistent supply of power from one DC source to another and is ideally suited for applications such as renewable energy systems and portable devices. It uses a synchronous buck converter topology, which works by converting a higher input voltage to a lower output voltage by utilising the equation: Vout = Vin x Duty Cycle, and is controlled by a PWM signal generated by an internal high-speed comparator and a high-frequency oscillator.

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