Allegro MicroSystems A4490EESTR-T Current - Output: 1.5A Frequency - Switching: 550kHz ID_COMPONENTS: 734464 Internal Switch(s): Yes Mounting Type: Surface Mount Number Of Outputs: 3 Operating Temperature: -40?°C ~ 85?°C Package / Case: 20-WFQFN Power - Output: - Series: - Synchronous Rectifier: No Type: Step-Down (Buck) Voltage - Input: 4.5 ~ 34 V Voltage - Output: Adjustable Other Names: 620-1245-2, A4490SESTR-T