ISL6377 Datasheet, PDF (4/36 Pages) Intersil Corporation – Multiphase PWM Regulator for AMD Fusion™ Desktop CPUs Using SVI 2.0

ISL6377
Simplified Application Circuit for Mid-Power CPUs [3+1 Configuration]
* Resistor required or ISEN1_NB
will pull HIGH if left open and
disable Channel 1.
10kΩ*
NBN
NBP
+5V
Ri
NTC
Cn
ISEN1_NB
ISEN2_NB
ISUMN_NB
ISUMP_NB
COMP_NB
PWM_Y
FCCM_NB
PWM2_NB
IMON_NB
OPEN
NTC_NB
+12V
VNB
NBP NBN
*
*
*OPTIONAL
VNB_SENSE
FB_NB
VSEN_NB
VR_HOT_L
IMON
NTC
Thermal Indicator
*
*
*OPTIONAL
VCORE_SENSE
VP1
VP2
VP3
VN1
VN2
VN3
PWROK
SVT
µP
SVD
SVC
VDDIO
COMP
+5V
Ri
Cn
NTC
FB
VSEN
RTN
ISEN1
ISEN2
ISEN3
ISEN4
ISUMN
ISUMP
ISL6377
PWM4 OPEN
BOOTX
UGATEX
PHASEX
LGATEX
BOOT2
UGATE2
PHASE2
LGATE2
BOOT1
UGATE1
PHASE1
LGATE1
+12V
VP3 VN3
+12V
VP2 VN2
+12V
VCORE
VP1 VN1
FIGURE 5. TYPICAL APPLICATION CIRCUIT USING RESISTOR SENSING
4
FN8336.0
August 6, 2012