The LM2671M-12/NOPB is a step-down Voltage Regulator with a LMDMOS process. It 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. It requires a minimum number of external components, this regulator is simple to use and include patented internal frequency compensation (Patent Nos. 5,382,918 and 5,514,947), fixed frequency oscillator, external shutdown, soft-start and frequency synchronization. The LM2671 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. Other features include an ensured ±1.5% tolerance on output voltage within specified input voltages and output load conditions and ±10% on the oscillator frequency.
● Efficiency up to 96%
● Computer design software (version 6.0)
● Requires only 5 external components
● Uses readily available standard inductors
● TTL shutdown capability, low power standby mode
● Soft-start and frequency synchronization
● Thermal shutdown and current limit protection
● ±1.5% Maximum output voltage tolerance over line and load conditions
● 0.25R DMOS output switch
● Green product and no Sb/Br
