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MAX17024 - Single Quick-PWM Step-Down Controller

Description

The MAX17024 pulse-width modulation (PWM) controller provides high efficiency, excellent transient response, and high DC-output accuracy needed for stepping down high-voltage batteries to generate lowvoltage core or chipset/RAM bias supplies in notebook computers.

Features

  • o Quick-PWM with Fast Transient Response o Supports Any Output Capacitor No Compensation Required with Polymers/Tantalum Stable with Ceramic Output Capacitors Using External Compensation o Precision 2V ±10mV Reference o Dynamically Adjustable Output Voltage (0 to 0.9 x VIN Range) Feedback Input Regulates to 0 to 2V REFIN Voltage 0.5% VOUT Accuracy Over Line and Load o 26V Maximum Input Voltage Rating o Resistively Programmable Switching Frequency o Undervoltage/Thermal Protection o Voltage Soft-.

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Full PDF Text Transcription

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19-1040; Rev 0; 10/07 EVAALVUAAILTAIOBNLEKIT Single Quick-PWM Step-Down Controller with Dynamic REFIN MAX17024 General Description The MAX17024 pulse-width modulation (PWM) controller provides high efficiency, excellent transient response, and high DC-output accuracy needed for stepping down high-voltage batteries to generate lowvoltage core or chipset/RAM bias supplies in notebook computers. The output voltage can be controlled using the dynamic REFIN, which supports input voltages between 0 to 2V. The REFIN adjustability combined with a resistive voltage-divider on the feedback input allows the MAX17024 to be configured for any output voltage between 0 to 0.9 x VIN.
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