SiC401BCD

www.vishay.com 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. PRODUCT SUMMARY Input Voltage Range Output Voltage Range Operating Frequency Continuous Output Current Peak Efficiency Package 3 V to 17 V 0.6 V to VIN x 0.75 a 200 kHz to 1 MHz 15 A 93 % PowerPAK MLP55-32L Note a. See “High Output Voltage Operation” section FEATURES High efficiency > 93 % 15 A continuous output current capability Integrated bootstrap switch Programmable 200 mA LDO with bypass logic Temperature c...