The LM2597M-ADJ/NOPB is a SIMPLE SWITCHER® step-down Voltage Regulator provides all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5A load with excellent line and load regulation. This series of switching regulator is similar to the LM2594 series, with additional supervisory and performance features added. Requiring a minimum number of external components, this regulator is simple to use and include internal frequency compensation, improved line and load specifications, fixed-frequency oscillator, shutdown/soft-start, error flag delay and error flag output. The LM2597xx series operates at a switching frequency of 150kHz, thus allowing smaller-sized filter components than what would be required with lower-frequency switching regulators. Because of its high efficiency, the copper traces on the printed-circuit board are normally the only heat sinking required.
● Shutdown/soft-start function
● Out of regulation error flag
● Error output delay
● Bias supply pin (VBS) for internal circuitry
● Improves efficiency at high input voltages
● Low power standby mode
● High efficiency
● Uses readily available standard inductors
● Thermal shutdown and current-limit protection
● ±4% Maximum over line and load conditions
● 85µA Typical quiescent current
● Green product and no Sb/Br
