LM2674MX-5.0/NOPB .

Понижающий импульсный стабилизатор, фиксированный, 6.5В до 40В вход, 5В/500мА выход, 260кГц, SOIC-8.

The LM2674MX-5.0/NOPB is a SIMPLE SWITCHER® low component count Step-down Regulator, monolithic integrated circuit is built with a LMDMOS process. This regulator provide 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 need. 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
• TTL shutdown capability and low power standby mode
• Thermal shutdown and current limit protection
• ±1.5% Maximum output voltage tolerance over line and load conditions
• 0.25R DMOS Output switch
• 260kHz Fixed frequency internal oscillator