Parameters
1×
\( D = \frac{|V_{out}|}{V_{in} + |V_{out}|} = \) 0%
\( T_{on} = \frac{D}{f_{sw}} = \) 0 ns
\( T_{off} = \frac{1-D}{f_{sw}} = \) 0 ns
\( \Delta I_{L(pp)} = \frac{V_{in} \cdot D}{L \cdot f_{sw}} = \) 0 A (0% of Iavg)
Avg Inductor Current = 0 A
Peak Current = 0 A
Valley Current = 0 A
Output RMS Current = 0 A (accounts for ripple and pulsing)
Input RMS Current = 0 A (accounts for ripple and pulsing)
X: - µs, Y: - V
X: - µs, Y: - A
X: - µs, Y: - A
Note: Inverting topology (positive Vin to negative Vout). Calculated duty cycle and inductor current assumes ideal components and continuous conduction mode (CCM). Closed loop control needed for accurate Vout.
Inverting Buck-Boost Converter Topology
Low-side MOSFET (control FET) connects switch node to ground during on-time (inductor charges from Vin).
High-side MOSFET (sync FET) connects switch node to negative Vout during off-time (inductor discharges to load).