Part LM3489Q
Description Hysteretic PFET Buck Controller
Manufacturer National Semiconductor
Size 385.44 KB
National Semiconductor

LM3489Q Overview

Description

The LM3489 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, cost effective, switching buck regulator for a wide range of applications. The hysteretic control architecture provides for simple design without any control loop stability concerns using a wide variety of external components.

Key Features

  • Easy to use control methodology No control loop compensation required Wide 4.5V to 35V input range 1.239V to VIN adjustable output range