XL2596 12V PWM Stepdown DC/DC Buck Converter TO-263 IC

XL2596 12V PWM Stepdown DC/DC Buck Converter TO-263 IC

The XL2596 IC is a 150 KHz fixed frequency PWM buck (step-down) DC/DC converter capable of driving a 3A load with high efficiency, low ripple and excellent line and load regulation. Requiring minimal external components, the controller is simple to operate and includes internal frequency compensation and a fixed frequency oscillator. The PWM control circuit is capable of linear duty cycle adjustment from 0 to 100%. An activation function and an overcurrent protection function are integrated. When the second current limiting function occurs, the operating frequency is reduced from 150KHz to 50KHz. An internal compensation block is integrated to minimize the number of external components.

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• Wide input voltage range from 4.5V to 40V
  

• 3.3V, 5V, 12V range, and adjustable versions
  

• Adjustable output from 1.23V to 37V
  

• Maximum duty cycle of 100%.
  

• Minimum drop of 1.5V
  

• Fixed switching frequency of 150KHz
  

• Constant output current capacity of 3A
  

• Optimized internal power transistor
  

• High efficiency
  

Specifications of XL2596 12V PWM Stepdown DC/DC Buck Converter TO-263 IC

• Input Voltage Range: 4.5V to 40V
  

• Output Voltage: 12V (Fixed)
  

• Output Current: 3A (Maximum)
  

• Efficiency: Up to 90%
  

• Switching Frequency: 150 kHz (typical)
  

• Output Voltage Ripple: Typically 50mV (depending on external components and load)
  

Package Includes

• 1 x XL2596 12V PWM Stepdown DC/DC Buck Converter TO-263 IC