LM5160A

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design LM5160, LM5160A SNVSA03E – OCTOBER 2014 – REVISED OCTOBER 2018 LM5160, LM5160A Wide Input 65-V, 2-A Synchronous Buck / Fly-Buck™ DC/DC Converter 1 Features 1 Wide 4.5-V to 65-V Input Voltage Range Integrated High-Side and Low-Side Switches – No External Schottky Diode Required 2-A Maximum Load Current Adaptive Constant On-Time Control – No External Loop Compensation – Fast Transient Response Selectable Forced PWM or DCM Operation – FPWM Supports Multi-Output Fly-Buck™ Nearly Constant Switching Frequency – Resistor Adjustable up to 1 MHz Programmable Soft-Start Time Prebiased Start-Up ±1% Feedback Voltage Reference LM5160A Allows External VCC Bias Inherent Protection Features for Robust Design – Peak Current Limiting Protection – Adjustable Input UVLO and Hysteresis – VCC and Gate Drive UVLO Protection – Thermal Shutdown Protection With Hysteresis Create a Custom Design Using the LM5160A With the WEBENCH® Power Designer 2 Applications Industrial Programmable Logic Controller IGBT Gate Drive Bias Supply Telecom Primary and Secondary Side Bias E-Meter Power Line Communication Low-Power Isolated DC/DC (Fly-Buck) Typical Synchronous Buck Application Circuit VIN VIN BST LM5160A LM5160 SW VOUT RON EN/UVLO FB VCC SS FPWM AGND PGND 3 Description The LM5160/A is a 65-V, 2-A synchronous step-down converter with integrated high-side and low-...