National Semiconductor LM2597HV, 150 kHz, 0.5 Amp Step-Down Voltage Regulator, 40 PieceCondition:* New Old Stock, In OEM Packaging. As Pictured.Additional Notes:* Quantity: 40 Pieces* Input Voltage: 4.5 – 60 Volt* Output Voltage: 3.3 – 37 Volt* Output Current: 0.5 Amp (Max)* Switching Frequency: 110-173 kHz* Packaging: SOIC-8* Mounting Style: SMD/SMTNational SemiconductorLM2597HV