The LM5001 high-voltage switch-mode regulator features all of the functions necessary to implement efficient high-voltage Boost, Flyback, SEPIC and Forward converters, using few external components. This easy-to-use regulator integrates a 75-V N-Channel MOSFET with a 1-A peak current limit. Current mode control provides inherently simple loop compensation and line-voltage feed-forward for superior rejection of input transients. The switching frequency is set with a single resistor and is programmable up to 1.5 MHz. The oscillator can also be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown, undervoltage lockout and remote shutdown capability.

• AEC-Q100 Qualified (TJ = –40°C to 125°C)
• Integrated 75-V N-Channel MOSFET
• Ultra-Wide Input Voltage Range from 
  3.1 V to 75 V
• Integrated High Voltage Bias Regulator
• Adjustable Output Voltage
• 1.5% Output Voltage Accuracy
• Current Mode Control with Selectable 
  Compensation
• Wide Bandwidth Error Amplifier
• Integrated Current Sensing and Limiting
• Integrated Slope Compensation
• 85% Maximum Duty Cycle Limit
• Single Resistor Oscillator Programming
• Oscillator Synchronization Capability
• Enable / Undervoltage Lockout (UVLO) Pin
• Thermal Shutdown