17-02-2011, 11:37 AM
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Digitally Controlled SMPS
Integrated Digitally Controlled Switched Mode Power Supplies for Portable Applications
Power Conversion for Portable Applications
DC-DC Converter Requirements
Performance
• High Efficiency (light &
rated load)
• Fast Response
Protection
• UVLO, OVP
• OCP, soft-start, etc.
• Diagnostics,Synchronization“SMART” Features
• Multi-mode operation(PWM, PFM, DCM)
• Diagnostics
• Fully configurable
Cost
• Size of passives (L,C)
• Parts count
• Power density
DC-DC Converter Targets
Improvements are required at all levels to achieve best performance: