bd9526amuv ROHM Co. Ltd., bd9526amuv Datasheet - Page 3

• Manufacturer Part Number: bd9526amuv
• Description: Step Down Dc/dc Converter Controller For Laptop Pc
• Manufacturer: ROHM Co. Ltd.

○Physical Dimensions
○Block Diagram, Application Circuit
REG2
RFS2
REF2
FS2
FB2
11
10
31
8
9
C0.2
32
0.75
0.08 S
32
25
CL2
SCP2
6
1
24
D 9 5 2 6 A
0.5
5
3.4±0.1
5.0±0.1
25
4
Short through
Protection
Controller
SLLM
H
Reference
Circuit
Block
3
Block
Block
Reg
18
3
17
VCC
TM
INT
TM
0.25
8
VIN1
3.3V
Reg
1
9
16
EN2
TEST2
(Vo2±5%)
27
+0.05
-0.04
2
MCTL2
FS2
Lot No.
Protection
Thermal
12
S
(Vo1±5%)
MCTL1
VIN2
FS1
TEST1
20
28
EN1
21
VQFN032-V5050
Short through
Protection
Controller
H
SLLM
Circuit
Block
Block
3
(UNIT : mm)
Reg
22
30
Reg
5V
VCC
INT
TM
TM
REV. B
24
3.3V
Reg
29
23
CL1
SCP1
＊Apply the supply voltage EXTVCC pin after INTVCC pin is operated.
19
14
15
17
16
26
13
7
EN1
REG2
Is+1
AGND
DGND
FB1
REF1
FS1
RFS1
○Pin Description
PIN No.
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
11
1
2
3
4
5
6
7
8
9
-
PIN Name
EXTVCC
INTVCC
PGND2
BOOT2
BOOT1
PGND1
TEST2
TEST1
DGND
AGND
MCTL
REG1
REG2
REF2
REF1
VIN1
VIN2
SW2
SW1
HG2
Is+2
Is+1
HG1
EN1
EN2
LG2
FB2
FS2
FS1
FB1
CTL
LG1
FIN
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