LM5160A - Texas Instruments

LM5160A 2-A Synchronous Buck / Fly-Buck DC/DC Converter

The LM5160/A is a 65-V, 2-A synchronous step-down converter with integrated high-side and low-side MOSFETs. The adaptive constant on-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. An internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature ran.

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 Protectio.