LM2671M-3.3/NOPB Datasheet PDF - TI

●The LM2671M-3.3/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