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 (>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
● 0.25R 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
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
