Texas Instruments(333) STMicroelectronics(168) ROHM Semiconductor(44) ON Semiconductor(839) Infineon Technologies(165) Diodes Incorporated(86) Analog Devices Inc.(19) Cypress Semiconductor(16) Dialog Semiconductor(39) Elantec(1) Fairchild / ON Semiconductor(107) Fremont Micro Devices(8) Intersil / Renesas(13) Maxim Integrated(35) Micrel / Microchip(14) Microsemi / Microchip(18) Monolithic Power Systems (MPS)(71) Microchip Technology / Micrel(74) NXP / Freescale(82) National Semiconductor(1) Power Integrations(723) Richtek(8) Renesas Electronics America(26) Sanyo Semiconductor / ON Semiconductor(1) Semtech(3) Siliconix / Vishay(3) Sanken Electric Co., Ltd.(74) Unitrode(60)