Slide 1 Slide 2 Slide 3 Slide 4 Slide 5 Slide 6 Slide 7 Slide 8 Slide 9 Slide 10 Slide 11 Slide 12 Slide 13 Slide 14 Slide 15 Slide 16 Slide 17 Slide 18 Slide 19 Slide 20 Slide 21 Slide 22 Slide 23 Slide 24 Slide 25 Slide 26 Slide 27 Slide 28 Slide 29 Slide 30 Slide 31 Slide 32 Slide 33 Slide 34 Slide 35 Slide 36 Product List
Power Supplies 101 Slide 25

The Adaptive On-Time controller has multiple advantages. No external compensation components are required since there is no error amp used in the control architecture. Instead, the slow error amp has been replaced by a fast comparator that provides instantaneous response to a load transient. This further helps reduce the required output capacitance and hence the total solution size as such. Unlike comparable constant on-time and hysteretic control architectures, adaptive on-time architecture provides a predictable, pseudo fixed switching frequency making it easy for designers to locate and diagnose noise issues, if any, in their application. All Semtech EcoSpeed, Adaptive on-time products come with an external resistor adjustable on-time feature that helps designers use multiple products on the same board to generate multiple rails with switching frequencies close to each other.

PTM Published on: 2011-09-27