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MAX1980 - Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter

General Description

The MAX1980 step-down slave controller is intended for low-voltage, high-current, multiphase DC-DC applications.

The MAX1980 slave controller can be combined with any of Maxim’s Quick-PWM™ step-down controllers to form a multiphase DC-DC converter.

Key Features

  • Synchronized to the master’s low-side gate driver, the MAX1980 includes the Quick-PWM constant on-time controller, gate drivers for a synchronous rectifier, active current balancing, and precision current-limit circuitry. The MAX1980 provides the same high-efficiency, ultralow duty factor capability, and excellent transient response as other Quick-PWM controllers. The MAX1980 differentially senses the inductor currents of both the master and the slave across current-sense resistors. These diffe.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-2298; Rev 2; 9/02 Quick-PWM Slave Controller with Driver Disable for Multiphase DC-DC Converter General Description The MAX1980 step-down slave controller is intended for low-voltage, high-current, multiphase DC-DC applications. The MAX1980 slave controller can be combined with any of Maxim’s Quick-PWM™ step-down controllers to form a multiphase DC-DC converter. Existing QuickPWM controllers, such as the MAX1718, function as the master controller, providing accurate output-voltage regulation, fast transient response, and fault protection features. Synchronized to the master’s low-side gate driver, the MAX1980 includes the Quick-PWM constant on-time controller, gate drivers for a synchronous rectifier, active current balancing, and precision current-limit circuitry.