XRP7740ILBTR-F , Linear And Switching Voltage Regulator IC 5 Output Step-Down (Buck) Synchronous (4), Linear (LDO) (1) 1.5MHz 40-WFQFN Exposed Pad. we specialize in Exar Corporation XRP7740ILBTR-F electronic components. XRP7740ILBTR-F can be shipped within 24 hours after order.