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Product Descriptions

The XL4003 is a 300KHz fixed frequency PWM buck (step-down) DC/DC converter, capable of driving a 4A 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 PERCENT. 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.

Product Features

n Wide 5V to 32V Input Voltage Range

n Output Adjustable from 0.8V to 30V

n Maximum Duty Cycle 100 PERCENT

n Minimum Drop Out 0.6V

n Fixed 300KHz Switching Frequency

n 4A Constant Output Current Capability

n Internal Optimize Power MOSFET

n High efficiency

n Excellent line and load regulation

n TTL shutdown capability

n EN pin with hysteresis function

n Built in thermal shutdown function

n Built in current limit function

n Built in output short protection function

n Available in TO-252 package

Product Applications

n LCD Monitor and LCD TV

n Digital Photo Frame

n Set-up Box

n ADSL Modem

n Telecom / Networking Equipment

Specifications

Actual product photos

Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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