Datasheet

Test Setup and Results

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Table 3 lists the R1 values for some common output voltages. For higher output voltages of 1.8 V or

above, a feedforward capacitor (C2) may be required to improve phase margin. Pads for this component

(C2) are provided on the printed-circuit board. Note that the values given in Table 3 are standard values

and not the exact value calculated using Table 3.

Table 3. Output Voltages

Output Voltage R1 R2 C2 L1

(V) (kΩ) (kΩ) (pF) (µH)

1.0 6.81 22.1 1.5

1.05 8.25 22.1 1.5

1.2 12.7 22.1 1.5

1.5 23.2 22.1 1.5

1.8 30.1 22.1 10 -22 2.2

2.5 49.9 22.1 10 -22 2.2

3.3 73.2 22.1 10 -22 2.2

5.0 121 22.1 10 -22 3.3

4 Test Setup and Results

This section describes how to properly connect, set up, and use the TPS54429EVM-608. The section also

includes test results typical for the evaluation modules and efficiency, output load regulation, output line

regulation, load transient response, output voltage ripple, input voltage ripple, start-up, and switching

frequency.

TPS54429EVM-608, 4.5-A, SWIFT™ Regulator— Evaluation Module SLVU443–March 2011

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