National Semiconductor LM2597N-3.3/NOPB Current - Output: 500mA Filter Terminals: Through Hole Frequency: 150kHz Frequency - Switching: 150kHz Input Voltage: 40V Internal Switch(s): Yes Mounting Type: Through Hole No. Of Outputs: 1 No. Of Pins: 8 Number Of Outputs: 1 Operating Temperature: -40?°C ~ 125?°C Operating Temperature Range: -40?‚?°C To +125?‚?°C Output Current: 500mA Output Voltage: 3.3V Package / Case: 8-DIP (0.300", 7.62mm) Power - Output: - Rohs Compliant: Yes Series: SIMPLE SWITCHER?® Synchronous Rectifier: No Type: Step-Down (Buck) Voltage - Input: 4.5 ~ 40 V Voltage - Output: 3.3V Other Names: *LM2597N-3.3, *LM2597N-3.3/NOPB, LM2597N-3.3