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.