The LM2675M-3.3 is a SIMPLE SWITCHER® 1A 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 1A 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 LM2675 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 LM2675 are available from several different manufacturers.
Efficiency up to 96%
Computer design software LM267X made simple (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 1A 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.
