ISL6314 Datasheet, PDF (31/32 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications

ISL6314
R_FB
C₂ R₂
LOCATE CLOSE TO IC
(MINIMIZE CONNECTION PATH)
C_DVC
R_DVC
FB
DVC VDIFF VSEN RGND
C₁
C₃
R₁
COMP
C_APA
APA
R_APA
+5V
(CF1)
VCC
R_OFS
OFS
FS
R_T
REF
C_REF
SS
PVCC
BOOT
UGATE
R_SS
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
ISL6314
PHASE
LGATE
KEY
HEAVY TRACE ON CIRCUIT PLANE LAYER
ISLAND ON POWER PLANE LAYER
ISLAND ON CIRCUIT PLANE LAYER
VIA CONNECTION TO GROUND PLANE
LOCATE NEAR SWITCHING TRANSISTORS;
(MINIMIZE CONNECTION PATH)
+12V
(CF2)
C_BOOT
C_{BIN (CHFIN)}
C_BOUT(C_HFOUT)
LOAD
LOCATE NEAR LOAD;
(MINIMIZE CONNECTION
PATH)
PGOOD
EN
GND
ISEN+ OCSET ISENO
ISEN-
C_COMP
R_OCSET
R_S
R_COMP
FIGURE 24. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
31
FN6455.2
October 8, 2009