15 A microBUCK® SiC401A/B Integrated Buck Regulator with Programmable LDO SiC401A, SiC401BCD
●DESCRIPTION
■The Vishay Siliconix SiC401A/B an advanced stand-alone synchronous buck regulator featuring integrated power MOSFETs,bootstrap switch,and a programmable LDO in a space-saving PowerPAK MLP55-32L pin package.
■The SiC401A/B is capable of operating with all ceramic solutions and switching frequencies up to 1 MHz.The programmable frequency,synchronous operation and selectable power-save allow operation at high efficiency across the full range of load current.The internal LDO may be used to supply 5 V for the gate drive circuits or it may be bypassed with an external 5 V for optimum efficiency and used to drive external n-channel MOSFETs or other loads.Additional features include cycle-by-cycle current limit,voltage soft-start,under-voltage protection,programmable over-current protection,soft shutdown and selectable power-save.The Vishay Siliconix SiC401A/B also provides an enable input and a power good output.
●FEATURES
■High efficiency>93%
■15 A continuous output current capability
■Integrated bootstrap switch
■Programmable 200 mA LDO with bypass logic
■Temperature compensated current limit
■All ceramic solution enabled
■Pseudo fixed-frequency adaptive on-time control
■Programmable input UVLO threshold
■Independent enable pin for switcher and LDO
■Selectable ultra-sonic power-save mode(SiC401A)
■Selectable power-save mode(SiC401B)
■Programmable soft-start and soft-shutdown
■1%internal reference voltage
■Power good output
■Over-voltage and under-voltage protections
●APPLICATIONS
■Notebook,desktop and server computers
■Digital HDTV and digital consumer applications
■Networking and telecommunication equipment
■Printers,DSL,and STB applications
■Embedded applications
■Point of load power supplies
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SiC401A 、 SiC401BCD 、 SiC401ACD-T1-GE3 、 SiC401BCD-T1-GE3 、 SiC401D |
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[ Notebook ][ desktop ][ server computers ][ Digital HDTV ][ digital consumer applications ][ Networking ][ telecommunication equipment ][ Printers ][ DSL ][ STB applications ][ Embedded applications ][ load power supplies ] |
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Datasheet |
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Please see the document for details |
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PowerPAK MLP55-32L |
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English Chinese Chinese and English Japanese |
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13-Oct-14 |
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Rev. D |
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63835 |
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2.3 MB |
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