Part LM3478Q
Description High Efficiency Low-Side N-Channel Controller
Manufacturer National Semiconductor
Size 456.25 KB
National Semiconductor
LM3478Q

Overview

The LM3478 is a versatile Low-Side N-Channel MOSFET controller for switching regulators. It is suitable for use in topologies requiring a low side MOSFET, such as boost, flyback, SEPIC, etc.

  • Wide supply voltage range of 2.97V to 40V
  • 100kHz to 1MHz Adjustable clock frequency
  • ±2.5% (over temperature) internal reference
  • 10µA shutdown current (over temperature) Features
  • LM3478Q in MSOP-8 package is AEC-Q100 qualified and manufactured on an Automotive Grade Flow
  • 8-lead Mini-SO8 (MSOP-8) and SO-8 packages
  • Internal push-pull driver with 1A peak current capability
  • Current limit and thermal shutdown
  • Frequency compensation optimized with a capacitor and a resistor
  • Internal softstart