BD95242MUV_10 Datasheet, PDF (15/21 Pages) Rohm – 2ch Switching Regulator for Desktop PC

●I/O Equivalent Circuit
26, 31pin (LG1, LG2)
REG1
REG1
27pin (EXTVCC)
Technical Note
28pin (REG2)
REG1
29pin (REG1)
VIN
30pin (VIN)
●Evaluation Board Circuit (Vo1=5V f1=300kHz Vo2=3.3V f2=400kHz)
VIN
REG1
REG1
VIN
12V _R1
CTL _C1
CTL
R2
EN1
EN1
R3
EN2
EN2
R4
REG1
5V
C2
REG2
3.3V
C3
Vo1
EXTVCC
R5
REG2
REG2
C4
R8
R6
R9
C6 ^R7
C5
VIN
REG2
R58
R16 ^FS1
VIN
R13
REG2
R17
FS2
R12
R14
MCTL
C8
C7
C18
C31
C28
BD9524MUV
30 _VIN
18 _CTL
21 _EN1
4 _EN2
29 _REG1
28 _REG2
27 _EXTVCC
REG1
VIN VIN
D3
R50
BOOT1 ²²
HG1 ^{23 R49}
C24
R47
SW1 ²⁴
C27
Q2
D1
LG1 ^{26 R46}
Q1
PGND1 ²⁵
Is+1 ¹⁶
FB1 ¹⁵
C19
REG1
R40
R39
VIN VIN
C25
C26
SW1
L1
R45 C34
C23
R10
17 _REF1
8 _REF2
19 _SS1
6 SS2
14 _FS1
11 _FS2
12 _MCTL
7 _DGND
13
AGND
R35
BOOT2 ³
D4
C17
R34
C14
HG2 ²
Q4
R32
SW2 ¹
R30
LG2 ³¹
Q3
PGND2 ³²
Is+2 ⁹
FB2 ¹⁰
R25
C9
R24
REG1 PGOOD1
R21
R20
PGOOD1 ²⁰
REG1 PGOOD2
PGOOD2 ^{5 R37}
R36
C15 C16
SW2
L2
D2
R31 C36
C13
R15
VO1
R51
R48
R43
R44
R60
VO1
C21 C22 C33 C32 C20
TPQ6
R56
R55
R57
Q5
VO2
R53
R28
R59
R33
VO2
C11 C12 C29 C30 C10
R29
R54
TPQ5
R63
Q6
R52
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15/20
2010.03 - Rev.C