3 Fundamentals of Switching Regulators

This section lists several application notes that discuss fundamental operation of switching converters and present basic calculations for buck-boost converter.

Switching Regulator Fundamentals:SNVA559

This application report presents basics of commonly used converter topologies, including the inverting buck-boost. Some practical tips are shown, such as guidelines for PCB layout and measurements.

Under the Hood of a Noninverting Buck-Boost Converter:SLUP346

Various topologies used in non-inverting buck-boost designs are presents in this application report, with a focus on four-switch, non-inverting buck-boost converter. A practical design example illustrates a four-switch buck-boost application design including the PCB layout and the performance achievable with this topology.

Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies: SLVA059

This application report describes and analyzes the operation of the inverting buck-boost power stage. Two modes of operation, continuous conduction mode and discontinuous conduction mode, are examined, together with steady-state and small-signal analysis.

Basic Calculations of a 4-Switch Buck-Boost Power Stage: SLVA535

This application note provides equations to calculate the power stage of a non-inverting buck-boost converter with integrated switches, operating in continuous conduction mode. One practical design example is presented as well.

Basic Calculation of an Inverting Buck-Boost Power Stage: SLVA721

This application note provides basic formulas needed to design the power stage of a non-synchronous inverting buck-boost converter with integrated switches. It provides formulas and considerations for selecting external components and an estimation for the maximum output current.