ISL6313_14 Datasheet, PDF (32/33 Pages) Intersil Corporation – Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR11 and AMD Applications

ISL6313
R_FB
R₂ C₂
C_DVC R_DVC
KEY
HEAVY TRACE ON CIRCUIT PLANE LAYER
FB
C₁
C₃
R₁
COMP
R_APA
DVC VSEN RGND
+5V VCC
ISLAND ON POWER PLANE LAYER
ISLAND ON CIRCUIT PLANE LAYER
VIA CONNECTION TO GROUND PLANE
RSET
R_SET
LOCATE CLOSE TO IC
(MINIMIZE CONNECTION PATH)
+12V
+5V
(CF1)
APA
VCC
R_OFS
OFS
FS
R_T
REF
C_REF
BOOT1
UGATE1
C_BOOT1
PHASE1
LGATE1
ISEN1-
ISEN1+
C_BIN1
LOCATE NEAR SWITCHING TRANSISTORS;
(MINIMIZE CONNECTION PATH)
R₁ C₁
SS
R_SS
VID7
VID6
VID5
VID4
VID3
VID2
VID1
VID0
VRSEL
PGOOD
EN
IOUT
R_IOUT
GND
ISL6313
PVCC
BOOT2
UGATE2
PHASE2
LGATE2
ISEN2-
ISEN2+
+12V
(CF2)
C_BOOT2
C_BIN2
(C_HFOUT) C_BOUT
LOAD
R₁ C₁
LOCATE NEAR LOAD;
(MINIMIZE CONNECTION
PATH)
FIGURE 27. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
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32
FN6448.2
September 2, 2008