EVAL6730 Datasheet, PDF (7/9 Pages) STMicroelectronics – L6730 demoboard realizes in a four layer PCB a step-down DC/DC converter and shows

EVAL6730
Features
Figure 5. Demoboard efficiency - Fsw=1 MHz
Fsw=1MHz
95.00%
90.00%
85.00%
80.00%
75.00%
70.00%
65.00%
60.00%
1
3
5
7
9
Iout (A)
Vo=3.3V
Vin=5V
Vin=12V
11
13
15
Figure 6. Efficiency with 2xSTS12NH3LL+2XSTSJ100NH3LL
12V-->3.3V
0.96
0.95
0.94
0.93
0.92
0.91
0.9
0.89
0.88
0.87
3 5 7 9 11 13 15 17 19
OUTPUT CURRENT (A)
400KHz
700KHz
1MHz
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