MB3883_02 FUJITSU [Fujitsu Component Limited.], MB3883_02 Datasheet - Page 35
MB3883_02
Manufacturer Part Number
MB3883_02
Description
6-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down
Manufacturer
FUJITSU [Fujitsu Component Limited.]
Datasheet
1.MB3883_02.pdf
(40 pages)
- Current page: 35 of 40
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REFERENCE DATA
90
88
86
84
82
80
78
76
74
72
70
90
88
86
84
82
80
78
76
74
72
70
0
0
(CH1 : Zeta method with synchronous rectification)
(CH2 : Zeta method with synchronous rectification)
50
50
Conversion efficiency vs. load current
Conversion efficiency vs. load current
100 150 200 250 300 350 400 450 500
100 150 200 250 300 350 400 450 500
Load current IL (mA)
Load current IL (mA)
Ta
2.5 V output
VCC VCC(O) 5 V
Ta
3.3 V output
VCC VCC(O) 5 V
25 C
25 C
Vin = 2.5 V
Vin = 3 V
Vin = 3.6 V
Vin = 4.2 V
Vin = 2.5 V
Vin = 3 V
Vin = 3.6 V
Vin = 4.2 V
To OUT1-2
To OUT2-1
To OUT2-2
To OUT1-1
Note : The above application uses a constant of
Vin
Vin
Vin=2.5 V, with settings made at maximum load.
2.2 F
2.2 F
C17
C18
Iin
Iin
3300 pF
3300 pF
R2
110
R1
82
C10
C11
Q1
Q2
(%)
(%)
C1
4.7 F
C3
4.7 F
L1
10 H
L3
15 H
Q3
Q4
Vo1
Vo2
Vin
Vin
A
B
L2
22 H
L4
22 H
D2
D1
Iin
Iin
IL
IL
MB3883
100
100
C2
4.7 F
C4
4.7 F
(Continued)
Vo1
(3.3 V)
Vo2
(2.5 V)
IL
IL
35
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