TPS55340PWPR datasheet(13/44 Pages) TI2

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8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

8.1 Application Information

The TPS55340 device can be configured in several standard switching-regulator topologies, including boost,

SEPIC, and isolated flyback. For example, the device configured in boost topology is widely used to convert a

lower dc voltage to a higher dc voltage with a maximum available switching current of 5.25 A. Use the following

design procedure to select component values for a boost converter design or SEPIC design for the TPS55340

device. Alternately, use the WEBENCH® software to generate a complete design. The WEBENCH software

uses an iterative design procedure and accesses a comprehensive database of components when generating a

design. This section presents a simplified discussion of the design process.

8.2 Typical Applications

The following section provides a step-by-step design approach for configuring the TPS55340 as a voltage

regulating boost converter, as shown in Figure 8-1. When configured as SEPIC or flyback converter, a different

design approach is required. A design example of SEPIC converter is provided in the next section.

8.2.1 Boost Converter

100 pF

Figure 8-1. Boost Converter Application Schematic

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TPS55340

SLVSBD4E – MAY 2012 – REVISED SEPTEMBER 2021

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