This post explains for the semiconductor XL4005.
The Part Number is XL4005.
The function of this semiconductor is 5A 300KHz 32V Buck DC to DC Converter.
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Datasheet 5A 300KHz 32V Buck DC to DC Converter Features n n n n XL4005 General Description The XL4005 is a 300KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 5A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 300KHz to 60KHz. An internal compensation block is built in to minimize external component count. Wide 5V to 32V Input Voltage Range Output Adjustable from 0.8V to 30V Maximum Duty Cycle 100% Minimum Drop Out 0.6V n n n n n n n n n n n Fixed 300KHz Switching Frequency 5A Constant Output Current Capability Internal Optimize […]