ISL6329 Datasheet, PDF (36/38 Pages) Intersil Corporation – Dual PWM Controller Powering AMD SVI Split-Plane Processors

+5V
CS1-
CS1+
CS2-
CS2+
CS3-
CS3+
CS4-
CS4+
CS5-
CS5+
CS6-
CS6+
CS_NB-
CS_NB+
+12V
ENABLE
CORE_FB
ISL6329
VCC
ISEN1- ^{VCC RSVD} _TCOMP1
ISEN1+
TCOMP2
ISEN2-
ISEN2+
ISEN3-
ISEN3+
ISEN4-
ISEN4+
ISL6329
PWM3
PWM4
PWM5
PWM6
PVCC
GVOT
BOOT1
ISEN5-
ISEN5+
UGATE1
PHASE1
ISEN6-
ISEN6+
ISEN_NB-
ISEN_NB+
LGATE1
BOOT2
UGATE2
PHASE2
I2C_ADDR
FS
OFS
OCP
VDDIO
SVC
SVD
SCL
SDA
PWROK
VDDPWRGD
EN
APA
DRPCTRL
LGATE2
VSEN
RGND
BOOT_NB
UGATE_NB
PHASE_NB
LGATE_NB
VSEN_NB
FB_NB
COMP_NB
FB_PSI
FB
COMP
GND
+12V
PWM3
PWM4
PWM5
PWM6
+12V
+12V
R_NTC^*
CS3-
CS3+
+12V
CS4-
CS4+
+12V
CS1-
CS1+
+12V
CS5-
CS5+
+12V
CS2-
CS2+
CS6-
CS6+
ISL6614
BOOT1 _PWM1
PWM3
PWM2
PWM4
UGATE1
PHASE1
+12V
PVCC
LGATE1
VCC
BOOT2
GND
UGATE2
PHASE2
PGND
LGATE2
ISL6614
BOOT1 _PWM1
PWM5
PWM2
PWM6
UGATE1
PHASE1
+12V
PVCC
LGATE1
VCC
BOOT2
GND
UGATE2
PHASE2
PGND
LGATE2
CORE_FB
+12V
CS_NB-
CS_NB+
CORE
CPU
NORTHBRIDGE
RED COMPONENTS:
LOCATE CLOSE TO IC TO
MINIMIZE CONNECTION PATH
BLUE COMPONENTS:
LOCATE NEAR LOAD
(MINIMIZE CONNECTION PATH)
MAGENTA COMPONENTS:
LOCATE CLOSE TO SWITCHING TRANSISTORS
(MINIMIZE CONNECTION PATH)
KEY
HEAVY TRACE ON CIRCUIT PLANE LAYER
ISLAND ON POWER PLANE LAYER
ISLAND ON CIRCUIT PLANE LAYER
KELVIN TYPE TRACE/SENSE LINE
(Keep these traces away from any switching nodes)
VIA CONNECTION TO GROUND PLANE
*LOCATE NTC RESISTOR CLOSE TO PHASE1 INDUCTOR
FIGURE 29. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
36
FN7800.0
April 19, 2011