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PI3542-00-LGIZ Datasheet, PDF (18/37 Pages) Vicor Corporation – 36 Vin to 60 Vin Cool-Power ZVS Buck Regulator & LED Driver
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PI354x-00
PI3545-00 (5.0 VOUT) 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
IOUT (A)
Figure 25 — Regulator Efficiency
Figure 28 — Output Ripple: 48 VIN, 5.0 VOUT at 10 A. VOUT = 20 mV/Div,
2.0 µs/Div; COUT = 6 x 47 µF Ceramic
Figure 26 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 VIN to 5.0 VOUT
COUT = 6 x 47 µF Ceramic
Switching Frequency vs. Load Current
600
550
36 Vin
48 Vin
500
60 Vin
450
400
0 1 2 3 4 5 6 7 8 9 10
IOUT (A)
Figure 29 — Switching Frequency vs. Load Current
Figure 27 — Output Short Circuit @ VIN = 48 V
Cool-Power®
Page 18 of 37
Rev 1.3
2/2016
Figure 30 — Output Ripple: 48 VIN, 5.0 VOUT at 5 A. VOUT = 20 mV/Div,
2.0 µs/Div; COUT = 6 x 47 µF Ceramic
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