The XL4016 from XL Semiconductor is a 180 KHz fixed frequency PWM buck (step-down) DC to DC converter which is  capable of driving a 8 Ampere load with high efficiency, low ripple and excellent line and load regulation. XL4016 IC requires  minimum number of external components and comes in TO220-5L package. Its is simple to use and includes 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 over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 180KHz to 48KHz. An internal compensation block is built in to minimize external component count. 

Features:

• Wide 8 Volt to 40 Volt Input Voltage Range
• Output Adjustable from 1.25 Volts to 36 Volts
• Maximum Duty Cycle 100%
• Minimum Drop Out 0.3 Volts
• Fixed 180KHz Switching Frequency
• 8 Ampere 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

Package:

XL4016 8-Ampere Buck IC