BD9528 View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BD9528 Datasheet PDF : 30 Pages
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BD9528AMUV
Technical Note
●Output condition table
Input
CTL
EN1
EN2
REG1(5V)
Low
Low
Low
OFF
Low
Low
High
OFF
Low
High
Low
OFF
Low
High
High
OFF
High
Low
Low
ON
High
Low
High
ON
High
High
Low
ON
High
High
High
ON
※ CTL pin is connected to VIN pin with 1MΩ resistor(pull up) internal IC.
※ EN pin is connected to AGND pin with 1MΩ resistor(pull down) internal IC.
●Block Diagram, Application circuit
Output
REG2(3.3V)
DC/DC1
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
ON
ON
ON
DC/DC2
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
FS2
10
5
PG OO D2
FB2
11
6
SS2
I L IM2
8
EN2
4
3
2
1 31
32
22 23 24 26
25
REG1
REG1
CL2
SCP2
OVP2
Short through
Protection
Ci rc uit
SLLMTM
B lo ck
MCT L
H3RegTM
Controller
FS2
Block
MCT L
Short through
Protec tion
Circuit
SLLMTM
Block
CL1
SCP1
OVP1
H3RegTM
F S1
Co nt rolle r
Bloc k
EN 2
EN 1
Thermal
Pr otecti on
Refer enc e
Block
5V
3.3V
Reg
Reg
AGND
13
FS1 RFS1
15
20
P G OO D1
F B1
14
REF
12
SS1
19
ILIM1
17
EN1
21
7
9
30
29
28
18 16
27
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© 2011 ROHM Co., Ltd. All rights reserved.
5/29
2011.11 - Rev.A
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