PI3542-00-LGIZ Datasheet, PDF (14/37 Pages) Vicor Corporation – 36 Vin to 60 Vin Cool-Power ZVS Buck Regulator & LED Driver

PI354x-00
PI3543-00 (3.3 V_OUT) Electrical Characteristics
Efficiency at 25°C
95
90
85
36 Vin
48 Vin
80
60 Vin
75
70
0 1 2 3 4 5 6 7 8 9 10
I_OUT (A)
Figure 13 — Regulator Efficiency
Figure 14 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V_IN to 3.3
V_OUT,
Figure 16 — Output Ripple: 48 V_IN, 3.3 V_OUT at 10 A. V_OUT = 20 mV/Div,
2.0 µs/Div; C_OUT = 6 x 100 µF Ceramic
Switching Frequency vs. Load Current
400
350
36 Vin
48 Vin
60 Vin
300
250
0 1 2 3 4 5 6 7 8 9 10
I_OUT (A)
Figure 17 — Switching Frequency vs. Load Current
Figure 15 — Output Short Circuit @ V_IN = 48 V
Cool-Power®
Page 14 of 37
Rev 1.3
2/2016
Figure 18 — Output Ripple: 48 V_IN, 3.3 V_OUT at 5 A. V_OUT = 20 mV/Div,
2.0 µs/Div; C_OUT = 6 x 100 µF Ceramic
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