LM5015

LM5015 www.ti.com SNVS538C – NOVEMBER 2007 – REVISED APRIL 2013 LM5015 High Voltage Monolithic Two-Switch Forward DC-DC Regulator Check for Samples: LM5015 FEATURES 1 2 Dual Integrated 75V N-Channel MOSFETs Ultra-Wide Input Voltage Range: 4.25V to 75V Integrated High Voltage Bias Regulator Adjustable Output Voltage 1.5% Feedback Reference Accuracy Current Mode Control with Selectable Compensation Wide Bandwidth Error Amplifier Integrated Current Sensing and Limiting 50% Maximum Duty Cycle Limit Single Resistor Oscillator Programming Oscillator Synchronization Capability Programmable Soft-Start Enable / Under-Voltage Lockout (UVLO) Pin Thermal Shutdown PACKAGE HTSSOP-14EP (Exposed Pad) DESCRIPTION The LM5015 high voltage switch mode regulator features all the functions necessary to implement efficient high voltage Two-Switch Forward and TwoSwitch Flyback regulators, using a minimum of external components. This easy to use regulator integrates high side and low side 75 Volt N-Channel MOSFETs with a minimum 1 Amp peak current limit. The voltage across the MOSFETs employed in the two-switch topology is clamped to the input voltage, allowing the input voltage range to approach the rating of the MOSFETs. The regulator control method is based on current mode control providing inherent ease of loop compensation and line feed-forward for superior rejection of input transients. The operating frequency is set with a single resistor and is programmable u...