MAX8877EZK36+

MAX8877EZK36+ Application Field and Working Principle

PMIC - Voltage Regulators - Linear

The MAX8877EZK36+ is an internal voltage regulator that provides highly efficient and stable power conversion for applications with multiple output requirements. It includes a wide range of features to support various design needs, such as temperature sensing and automatic reset, adjustable voltage reference, dedicated control pins, and flexible current limiting.

The MAX8877EZK36+ has been designed for high-voltage (up to 36V), high efficiency, high current, and high ripple filter applications. It is a full-featured device suitable for dc-dc converters, charging systems, and complex multi-layer PCBs. It is ideal for use in a wide variety of circuit designs with multiple outputs, including LED lighting, touch control panel, CCD cameras, precision instruments, industrial automation, and military applications.

Working Principle

The MAX8877EZK36+ operates in a fixed frequency pulse width modulation (PWM) mode. It contains two stages of regulation. The first stage regulation involves a constant peak-current mode controller, which compensates voltage peaks and provides a smooth input output relationship. The second stage regulation is based on a programmable voltage/current signal processor, which controls the power stage by adjusting the current. The MAX8877EZK36+ comes with an adjustable voltage reference range from 4V to 36V, an adjustable current limit range from 4A to 16A, and a programmable slew rate control.

The MAX8877EZK36+ can provide up to 96% efficiency. It also has the ability to detect any transient changes in line voltage, temperature, or load current. This feature allows the MAX8877EZK36+ to keep the output voltage stable, even when there are sudden changes in input or output conditions. This ensures consistent power delivery in the most demanding applications. Additionally, the MAX8877EZK36+ has an active freewheeling feature, which prevents overvoltage spikes when switching from one output voltage to another, and reduces ringing in the output.

Conclusion

The MAX8877EZK36+ is a high performance and reliable voltage regulator, ideal for applications that require high efficiency and stable power conversion. It offers a wide range of features, such as adjustable voltage reference and programmable slew rate control, which makes it suitable for complex and demanding applications. With its integrated temperature sensing and active freewheeling feature, it ensures consistent power delivery and protection against overvoltage or transient conditions.