MB3827 Datasheet, PDF (36/41 Pages) Fujitsu Component Limited. – 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down

MB3827
• Enlarged view of B
D
0.1 µF
FB4 ₂₀
22 kΩ 1 KΩ
VIN
(3.6 V)
−IN4 ²¹
16 kΩ
24 kΩ _{DTC4 22}
47 kΩ
E
150 kΩ
0.1 µF
FB5 ₁₉
13 kΩ
1 KΩ
18
−IN5
15 kΩ
-IN(C)5 ₁₇
24 kΩ
DTC5 ₁₆
47 kΩ
F
56 kΩ
−IN(A)6 ₁₀
10 kΩ
OUT(A)6
11
0.1 µF
10 kΩ ^{FB6 13}
1 KΩ
−IN6 ¹²
47 kΩ−_{IN(C)6 14}
G
24 kΩ _DTC6
15
47 kΩ
Error
− ^Amp.4
+
+
1.26 V
SCP
Comp.4
−
+
+
1.0 V
Error
− ^Amp.5
+
+
1.26 V
SCP
Comp.5
−
+
+
1.26 V
INV
Amp.6
−
+
Error
− ^Amp.6
+
+
1.26 V
SCP
Comp.6
−
+
+
1.26 V
PWM
Comp.4
+
+
−
CH4
Drive
4
91 Ω
OUT4
61
3300 pF
4.7 µF
FMMT717
Vo4
D ^{(3 V)}
22 µH
22 µH
U1FWJ44N
4.7 µF
RL4
13 Ω
PWM
Comp.5
+
+
−
CH5
Drive
5
GND(O)
2, 3, 4
56
64
VCC(O)
5, 6, 7
820 Ω
OUT5
62
3300 pF
Vo2
(5.0 V)
E
FMMT717
MA796
4.7 µF
MA796
4.7 µF
Vo5-1
(15 V)
RL5-1
1.5 kΩ
Vo5-2
(−7.5 V)
RL5-2
3 kΩ
CH6
PWM
Comp.6
+
+
−
Drive
6
820 Ω
OUT6
63
3300 pF
G
2SD1621
VREF
18 kΩ
27 kΩ
Vo6-2
F
(−7 V)
FMMT717
MA796
Vo2(5 V)
4.7 µF
Vo6-1
(11 V)
RL6-1
3 kΩ
MA796
Vo6-3
MA796 −14 V
4.7 µF
RL6-2
1 kΩ
4.7 µF RL6-3
3.9 kΩ
FMMT717: ZETEX plc.
FMMT617: ZETEX plc.
CPH3403: SANYO Electric Co., Ltd.
U1FWJ44N:TOSHIBA CORPORATION
MA796: Matsushita Electronic
Components Co., Ltd.
2SD1621: SANYO Electric Co., Ltd.
RB491D: ROHM CO.LTD
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