ISL6277A Datasheet, PDF (5/38 Pages) Intersil Corporation – Multiphase PWM Regulator for AMD Fusion Mobile CPUs Using SVI 2.0

ISL6277A
Simplified Application Circuit with 3 Internal Drivers Used for Core
VIN
NB_PH1
NB_PH2
VNB1
VNB2
NB_PH1
NB_PH2
*
*
*OPTIONAL
VNB_SENSE
*
*
*OPTIONAL
VCORE_SENSE
PH1
PH2
PH3
VO1
VO2
VO3
Ri
Cn _NTC
ISEN1_NB
ISEN2_NB
ISUMN_NB
ISUMP_NB
PWM_Y
FCCM_NB
PWM2_NB
µP
Ri
Cn
NTC
COMP_NB
FB_NB
VSEN_NB
PWROK
SVT
SVD
SVC
VDDIO
IMON_NB
NTC_NB
VR_HOT_L
IMON
NTC
BOOTX
UGATEX
PHASEX
COMP
FB2
FB
VSEN
RTN
ISEN1
ISEN2
ISEN3
ISUMN
ISUMP
ISL6277A
LGATEX
BOOT2
UGATE2
PHASE2
LGATE2
BOOT1
UGATE1
PHASE1
LGATE1
NB_PH1
VIN
NB_PH2
THERMAL INDICATOR
VIN
PH3
VIN
PH2
VIN
PH1
VNB
VNB1
VNB2
V03
VCORE
VO2
VO1
FIGURE 4. TYPICAL APPLICATION CIRCUIT USING INDUCTOR DCR SENSING
5
FN8322.0
December 19, 2012