BD95242MUV ROHM Electronics, BD95242MUV Datasheet - Page 17

• Manufacturer Part Number: BD95242MUV
• Description: 2ch Switching Regurators for Desktop PC
• Manufacturer: ROHM Electronics

●Handling method of unused pin during using only 1ch DC/DC.
●Charge pump Circuit Example.
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If using only 1ch DC/DC and 2ch pin is set to be off at all times, please manage the unused pin as diagram below.
During SLLM, if Vo1=5V and charge pump output is set 10V～15V, circuit example is below.
VIN
Vo1
PIN No,
REG1
VIN
R58
10
31
11
1
2
3
4
5
6
8
9
R5
REG2
CTL
EN1
Vo1
R6
R7
EXTVCC
R16
REG2
MCTL
R2
R3
FS1
VIN
12V
REG1
REG2
R17
3.3V
C28
5V
2.2μF
C5
CTL
EN1
R1
C7
C1
C2
C3
C4
C18
LG1
PIN Name
PGOOD2
BOOT2
30
18
21
29
28
27
17
19
14
11
12
13
REF2
4
8
6
7
SW2
HG2
EN2
SS2
Is+2
LG2
FB2
FS2
VIN
CTL
EN1
EN2
REG1
REG2
EXTVCC
REF1
REF2
SS1
FS1
FS2
MCTL
DGND
AGND
SS2
2.2μF
BD95242MUV
PGOOD1
PGOOD2
PGND1
PGND2
BOOT1
BOOT2
SW1
SW2
HG1
HG2
LG1
Is+1
LG2
Is+2
FB2
2.2μF
FB1
Management
22
23
24
26
25
16
15
3
2
1
31
32
9
10
20
5
R47
R50
R49
R46
R21
D3
OPEN
OPEN
GND
GND
GND
GND
GND
GND
GND
GND
GND
REG1
REG1
C24
17/20
C19
R20
2.2μF
PGOOD1
C27
Q2
R40
R39
Q1
VIN
Charge pump
VIN
D1
SW1
C25
R45 C34
C26
L1
510kΩ
470kΩ
C23
R10
R51
MCTL pin
R43
VO1
R48
R44
Technical Note
2009.04 - Rev.B
C21
R60
C22
TPQ6
C33
R55
R56
C32
C20
VO1
Q5
R57