ISL6267 Datasheet, PDF (6/33 Pages) Intersil Corporation – Multiphase PWM Regulator for AMD Fusion Mobile CPUs

Block Diagram
ISL6267
SVD
SVC
PWROK
VDD
SERIAL
PROG1
VID
A/D
PROG2
INTERFACE
VCORE
VNB
SLEEP
MODE
(PSI_L)
DAC1
D/A
DAC2
NORTHBRIDGE
CONTROLLER AND DRIVER
(SIMILAR ARCHITECTURE TO
CORE SECTION)
PROG1
PROG2
OFFSET
VOLTAGE
IBAL
PHASE
CURRENT
BALANCE
NTC_NB
NTC
VR_HOT
TEMP
MONITOR
T_MONITOR
VW
RTN
FB
COMP
+ ^DAC1
S
+
+
E/A
-
MODULATOR
ISUMP
ISUMN
VSEN
+
CURRENT
OC AND WOC
SENSE
PROTECTION
-
OV
PROTECTION
DRIVER
DRIVER
DRIVER
DRIVER
BOOT_NB
UG_NB
PH_NB
LG_NB
PWM2_NB
ISEN1
ISEN2
ISEN3/FB2
PWM3
BOOT2
UG2
PH2
LG2
BOOT1
UG1
PH1
VCCP
LG1
PGOOD
6
January 31, 2011
FN7801.0