ISL6277HRZ Datasheet, PDF (6/37 Pages) Intersil Corporation – Multiphase PWM Regulator for AMD Fusion™ Mobile CPUs Using SVI 2.0

Block Diagram
ISL6277
VSEN
COMP_NB
FB_NB
ISUMP_NB
ISUMN_NB
ISEN1_NB
ISEN2_NB
NTC_NB
NTC
VR_HOT_L
ENABLE
PWROK
SVC
SVD
SVT
VDDIO
COMP
VSEN
RTN
FB
FB2
ISUMP
ISUMN
ISEN3
ISEN2
ISEN1
RTN
+
_
+
+_
+
E/A
_
IDROOP_NB
CURRENT
SENSE
CURRENT
BALANCING
CORE_I
NB_I
CURRENT
A/D
VR2
MODULATOR
OC FAULT
IBAL FAULT
OV FAULT
IMON
IMON_NB
PWM2_NB
VDD
PGOOD_NB
TEMP
MONITOR
NB_V
T_MONITOR
VOLTAGE
A/D
OFFSET
FREQ
SLEWRATE
CONFIG
PROG
IDROOP_NB
FLOATING
DRIVER &
PWM
CONFIG
LOGIC
DRIVER
DRIVER
A/D
IDROOP
DAC2
DIGITAL
INTERFACE
D/A
DAC1
CORE_I
NB_I
PRELIMINARY ^TELEMETRY
CORE_V
NB_V
DRIVER
BOOTX
UGATEX
PHASEX
LGATEX
PWM_Y
VCCP
BOOT2
UGATE2
PHASE2
+
+_
+
E/A
VR1
MODULATOR
DRIVER
LGATE2
CONFIDENTIAL ^FB2
CIRCUIT
+
_
_
IDROOP
CURRENT
SENSE
VOLTAGE
A/D
DRIVER
BOOT1
UGATE1
PHASE1
CURRENT
BALANCING
CORE_V
OC FAULT
IBAL FAULT
OV FAULT
DRIVER
LGATE1
PGOOD
GND
6
FN8270.1
March 8, 2012