SC2446 Semtech Corporation, SC2446 Datasheet - Page 26

• Manufacturer Part Number: SC2446
• Description: Dual-Phase Single or Two Output Synchronous Step-Down Controller
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Application Information
2004 Semtech Corp.
C45
C99
VO1
VO2
+
+
C41
C95
R79
R81
RCS+
RCS+
C42
C96
L5
R40
L11
R83
R34
R75
C49
C103
C47
C101
CFILTER
RFILTER
CFILTER
RFILTER
Q9
Q11
Q21
Q23
Single Output, Current Share Mode
R32
R36
R73
R77
C52
C106
AVCC
RCS-
REF
VIN
SYNC
RCS-
REF
VIN
SYNC
Dual Independant Outputs
C39
C93
D5
D11
C53
C107
PVCC
BST2
GDH2
GDL2
VPN2
CS2+
CS2-
IN2-
COMP2
REFIN
VIN2
SYNC
SS1/EN1
SS2/EN2
PVCC
BST2
GDH2
GDL2
VPN2
CS2+
CS2-
IN2-
COMP2
REFIN
VIN2
SYNC
SS1/EN1
SS2/EN2
Figure 19
Figure 20
C38
SC2446
C92
SC2446
VIN
U1
VIN
U1
26
REFOUT
REFOUT
COMP1
COMP1
PGND
AGND
PGND
AGND
GDH1
AVCC
GDH1
AVCC
GDL1
VPN1
CS1+
BST1
GDL1
VPN1
CS1+
CS1-
Rosc
BST1
CS1-
Rosc
REF
IN1-
REF
IN1-
C54
C108
C50
R42
C104
R85
RCS-
RCS-
C40
C94
D6
D12
C55
C109
R33
R37
R74
R78
C51
C105
C48
VIN
C102
VIN
Q10
Q12
Q22
Q24
CFILTER
RFILTER
CFILTER
RFILTER
R41
R84
R35
R76
L6
L12
www.DataSheet4U.com
RCS+
RCS+
C43
C97
R38
www.semtech.com
R39
R80
R82
SC2446
C44
C98
VO1
VO1
+
+
C46
C100