PI3542-00-LGIZ Datasheet, PDF (22/37 Pages) Vicor Corporation – 36 Vin to 60 Vin Cool-Power ZVS Buck Regulator & LED Driver

PI354x-00
PI3546-00 (12.0 V_OUT) Electrical Characteristics
Efficiency at 25°C
100
95
36 Vin
48 Vin
60 Vin
90
85
0
1
2
3
4
5
6
7
8
9
I_OUT (A)
Figure 37 — Regulator Efficiency
Figure 38 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V_IN to
12.0 V_OUT, C_OUT = 6 x 10 µF Ceramic
Figure 40 — Output Ripple: 48 V_IN, 12.0 V_OUT at 9 A. V_OUT = 50 mV/Div,
2.0 µs/Div; C_OUT = 6 x 10 µF Ceramic
Switching Frequency vs. Load Current
850
800
750
700
650
600
550
500
450
400
350
0 1 2 3 4 5 6 7 8 9 10
I_OUT (A)
36 Vin
48 Vin
60 Vin
Figure 41 — Switching Frequency vs. Load Current
Figure 39 — Output Short Circuit @ V_IN = 48 V
Cool-Power®
Page 22 of 37
Rev 1.3
2/2016
Figure 42 — Output Ripple: 48 V_IN, 12.0 V_OUT at 4.5 A. V_OUT = 10 mV/Div,
2.0 µs/Div; C_OUT = 6 x 10 µF Ceramic
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