TPS54232
SLVS876–NOVEMBER 2008 ........................................................................................................................................................................................... www.ti.com
APPLICATION INFORMATION
Figure 13. Typical Application Schematic
STEP BY STEP DESIGN PROCEDURE
The following design procedure can be used to select component values for the TPS54232. Alternately, the
SwitcherPro™Software may be used to generate a complete design. The SwitcherPro™ 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.
To begin the design process a few parameters must be decided upon. The designer needs to know the following:
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Input voltage range
Output voltage
Input ripple voltage
Output ripple voltage
Output current rating
Operating frequency
For this design example, use the following as the input parameters
Table 3. Design Parameters
DESIGN PARAMETER
Input voltage range
Output voltage
EXAMPLE VALUE
5 V to 15V
2.5 V
Input ripple voltage
Output ripple voltage
Output current rating
Operating Frequency
300 mV
30 mV
2 A
1 MHz
SWITCHING FREQUENCY
The switching frequency for the TPS54232 is fixed at 1 MHz.
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