General DescriptionThe XL4016 is a 180 KHz fixed frequencyPWM buck (step-down) DC/DC converter,capable of driving a 8A load with highefficiency, low ripple and excellent line andload regulation. Requiring a minimumnumber of external components, the regulatoris simple to use and include internalfrequency compensation and afixed-frequency oscillator.The PWM control circuit is able to adjust theduty ratio linearly from 0 to 100%. An overcurrent protection function is built inside.When short protection function happens, theoperation frequency will be reduced from180KHz to 48KHz. An internal compensationblock is built in to minimize externalcomponent count.

Features

Wide 8V to 40V Input Voltage Range

Output Adjustable from 1.25V to 36V

Maximum Duty Cycle 100%n Minimum Drop Out 0.3V

Fixed 180KHz Switching Frequency

8A Constant Output Current Capability

Internal Optimize Power MOSFET

High efficiency up to 96%

Excellent line and load regulation

Built in thermal shutdown function

Built in current limit function

Built in output short protection function

Built in input over voltage protection

Available in TO220-5L package

Applications

LCD Monitor and LCD TV

Portable instrument power supply

Telecom / Networking Equipment

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