LM2674M-ADJ/NOPB

The LM2674M-ADJ/NOPB is a SIMPLE SWITCHER® 500mA low component count Step-down Regulator, monolithic integrated circuit built with a LMDMOS process. This regulator provides all the active functions for a step-down (buck) switching regulator, capable of driving a 500mA load current with excellent line and load regulation. Requiring a minimum number of external components, these regulators are simple to use and include patented internal frequency compensation (Patent Nos. 5,382,918 and 5,514,947) and a fixed frequency oscillator. The LM2674 series operates at a switching frequency of 260kHz, thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Because of its very high efficiency (<gt/>90%), the copper traces on the printed circuit board are the only heat sinking needed. A family of standard inductors for use with the LM2674 are available from several different manufacturers.

• Efficiency up to 96%
• Computer design software (version 6.0)
• Simple and easy to design
• Requires only 5 external components
• Uses readily available standard inductors
• ±1.5% Maximum output voltage tolerance over line and load conditions
• Guaranteed 500mA output load current
• 0.25Ω DMOS output switch
• 260kHz Fixed frequency internal oscillator
• TTL shutdown capability, low power standby mode
• Thermal shutdown and current limit protection
• Green product and no Sb/Br

Applications

Power Management