LM2575BU

Micrel
Voltage Regulators - Switching
IC REG BUCK ADJ 1A TO263-5 "Buck Switching Regulator IC Positive Adjustable 1.23V 1 Output 1A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA"
LM2575BUMicrelVoltage Regulators - Switching