Part LM22673
Description Step-Down Voltage Regulator
Category Voltage Regulator
Manufacturer National Semiconductor
Size 512.29 KB
National Semiconductor
LM22673

Overview

The LM22673 series of regulators are monolithic integrated circuits which provide all of the active functions for a stepdown (buck) switching regulator capable of driving up to 3A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance N-channel MOSFET.

  • Wide input voltage range: 4.5V to 42V Internally compensated voltage mode control Stable with low ESR ceramic capacitors 120 mΩ N-channel MOSFET TO-263 THIN package 100 mΩ N-channel MOSFET PSOP-8 package Output voltage options: -ADJ (outputs as low as 1.285V) -5.0 (output fixed to 5V) ±1.5% feedback reference accuracy Switching frequency of 500kHz -40°C to 125°C operating junction temperature range Adjustable soft-start Adjustable current limit Integrated boot diode Fully Webench® enabled Step-down and inverting buck-boost applications Package
  • PSOP-8 (Exp