MB3821 Datasheet, PDF (21/24 Pages) Fujitsu Component Limited. – 2-ch DC/DC Converter IC With Synchronous Rectifier

MB3821
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• Low power mode
Conversion efficiency vs. Input voltage
100
3.3 V output (5 V output OFF)
95
90
RT = 10 kΩ
CT = 500 pF
85
IO = 20 mA
80
VXCS1 = 5 V
75
VXCS2 = 0 V
SEL = 5 V
70
65
60
55
50
5 6 7 8 9 10 11 12 13 14 15 16
Input voltage Vin (V)
Conversion efficiency vs. Input voltage
100
95
90
85
80
75
70
65
60
55
50
56
5 V output (3.3 V output OFF)
RT = 10 kΩ
CT = 500 pF
IO = 20 mA
VXCS1 = 0 V
VXCS2 = 5 V
SEL = 5 V
7 8 9 10 11 12 13 14 15 16
Input voltage Vin (V)
21