PI3420-00-LGIZ Datasheet, PDF (17/30 Pages) Vicor Corporation – 8 V to 18 Vin, 15 A Cool-Power ZVS Buck Regulator

PI34xx-00
PI3423-00-LGIZ (3.3 V_OUT) Electrical Characteristics
Efficiency at 25°C
100
95
90
85
80
75
70
65
60
55
50
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
I_OUT (A)
8 Vin
12 Vin
18 Vin
Figure 19 — Regulator and inductor performance
Figure 22 — 12 V_IN to 2.5 V_OUT, C_OUT = 8 X 100 µF Ceramic
V_OUT (Ch2) = 100 mV/Div, I_IN (Ch1) = 10 A/Div, 100 µS/Div
Figure 20 — V_OUT (Ch3) = 1 V/Div, I_IN (Ch4) = 2 A/Div, 800 µs/Div
Figure 23 — Output Ripple 12 V_IN 3.3 V_OUT at 15 A; C_OUT = 8 x 100 µF
Switching Frequency vs. Load Current
800
700
600
500
8 Vin
400
12 Vin
18 Vin
300
200
100
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
I_OUT (A)
Figure 21 — Switching Frequency vs. Load Current
Figure 24 — Output Ripple 12 V_IN 3.3 V_OUT at 7.0 A; C_OUT = 8 x 100 µF
Cool-Power^®
Page 17 of 30
Rev 1.3
12/2015
vicorpower.com
800 927.9474