DESCRIPTION
FEATURES
include high efficiency and a fast dynamic response with no minimum on-time. Output 1 is designed to power IO or other static rails, whereas output 2 is designed to power rails requiring dynamic voltage transitioning. Output 2 has a tighter DC accuracy of 0.85% combined with a higher OVP threshold of 20% to simplify the design and reduce component count. Each output voltage can be independently adjusted from 0.5V to VCCA. Two frequency setting resistors set the on-time for each buck controller. The frequency can thus be tailored to minimize crosstalk. The integrated gate drivers feature adaptive shoot-through protection and soft switching, requiring no gate resistors for the top MOSFET. Additional features include cycle-by-cycle current limit, digital soft-start, over-voltage and under-voltage protection, and a Power Good output for each controller. SC485 FEATURES
Output 1 has 1% DC accuracy and 10% OVP Output 2 has 0.85% DC accuracy and 20% OVP for simple dynamic...
Semtech Corporation
