LM5001

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM5001, LM5001-Q1 SNVS484H – JANUARY 2007 – REVISED JULY 2015 LM5001x High-Voltage Switch-Mode Regulator 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 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 NChannel 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...