ISL6548A_06 Datasheet, PDF (4/16 Pages) Intersil Corporation – ACPI Regulator/Controller for Dual Channel DDR Memory Systems

ISL6548A
Simplified Power System Diagram
5VSBY
12V
3V3ATX
Q3
V_GMCH
+
Q4
SLP_S3
SLP_S5
SLEEP
STATE
LOGIC
PWM
CONTROLLER
ISL6548A
PWM
CONTROLLER
Q5
V_{TT_GMCH/CPU}
+
Q6
VTT
REGULATOR
LINEAR
CONTROLLER
LINEAR
CONTROLLER
5VDUAL
Q1
V_DDQ
+
Q2
3V3ATX or V_GMCH
Q7
+
V_REF
V_TT
+
V_ICH7
Typical Application
3VDUAL
5VSBY 12V
5VDUAL
V_GMCH
V_{TT_GMCH/CPU}
ATX3V3
SLP_S5
SLP_S3
VIDPGD
S5#
S3#
BOOT
OCSET
Q3
Q4
R5
C7 R7
Q5
C5
C6 R6
R8
R9
R10
Q6
PWM4
ISL6548A
UGATE
PHASE
COMP4
FB4
DRIVE2_U
LGATE
DDR_VDDQ(x2)
COMP
FB
VREF_IN
FB2
DDR_VTT(x2)
DRIVE2_L
DDR_VTTSNS
DRIVE3
FB3
D_BOOT
R_OCSET
C_BOOT
C1
R2 C2
Q1
V_{DDQ_DDR}
+
Q2
R3 C3
R1
R4
ATX3V3 or V_GMCH
V_{TT_DDR}
Q7
R11
R12
V_ICH7
4
FN9189.2
January 3, 2006