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SEPIC (Non-Isolated)
Used for:
Stepping a voltage up or down in value with high efficiency
Pros:
- Steps input up to any value or down towards zero
- Simple circuit
- Easy Low-side gate drive
- Inherently short circuit proof
Cons:
- High output ripple - can be > output DC current so need large low ESR output caps
- Requires two inductors
- Requires high quality series capacitor
- Complex to stabilise