ISL6548_06 Datasheet, PDF (3/15 Pages) Intersil Corporation – ACPI Regulator/Controller for Dual Channel DDR Memory Systems

ISL6548
Simplified Power System Diagram
5VSBY
12V
V_DDQ
SLP_S3
SLP_S5
Q3
V_GMCH
Q4
+
SLEEP
STATE
LOGIC
TWO STAGE
LINEAR
CONTROLLER
PWM
CONTROLLER
ISL6548
Q5
V_{TT_GMCH/CPU}
+
Q6
LINEAR
CONTROLLER
VTT
REGULATOR
5VDUAL
Q1
V_DDQ
+
Q2
V_REF
V_TT
+
Typical Application
5VSBY 12V
5VDUAL
V_{DDQ_DDR}
Q3
SLP_S5
SLP_S3
Q4
V_GMCH
R5
R6
Q5
V_{TT_GMCH/CPU}
R7
R8
Q6
VIDPGD
S5#
S3#
DRIVE4
FB4
REFADJ4
DRIVE3
FB3
BOOT
ISL6548
OCSET
UGATE
PHASE
LGATE
DDR_VDDQ(x2)
COMP
FB
DRIVE2_U
D_BOOT
R_OCSET
C_BOOT
C1
R2
C2
R4
Q1
Q2
R3 C3
R1
V_{DDQ_DDR}
+
FB2
DRIVE2_L
GND
VREF_IN
DDR_VTT(x2)
DDR_VTTSNS
V_{TT_DDR}
3
FN9188.2
January 3, 2006