4 Performance Characteristics

Efficiency Plots

Figure 4-1 shows the conversion efficiency versus output current for several input voltage conditions.

Figure 4-1 Conversion Efficiency Versus Output Current

Turn-On Waveform

When applying power to the LM27342 evaluation board a soft-start sequence occurs. Figure 4-2 shows the output voltage during a typical start-up sequence.

Output Current = 1A

Figure 4-2 Output Voltage During a Typical Start-Up Sequence