SiC401A, SiC401BCD Vishay Siliconix 15 A microBUCK ® SiC401A/B Integrated Buck Regulator with Programmable LDO
● 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
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[ Notebook ][ desktop ][ server computers ][ Digital HDTV ][ digital consumer applications ][ 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 pin |
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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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2.4 MB |
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