1 Features
1• 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 N•
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

2 Applications
• DC-DC Power Supplies for Industrial,
Communications, and Automotive Applications
• Boost, Flyback, SEPIC and Forward Converter
Topologies

3 Description
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.