ISL62883 Datasheet, PDF (29/39 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

8
7
6
5
4
3
2
1
VID0 IN
VID1 IN
VID2 IN
VID3 IN
D
VID4 IN
VID5 IN
VID6 IN
VR_ON IN
DPRSLPVR IN
CLK_EN# OUT
+3.3V IN
R23
1.91K
PGOOD OUT
PSI# IN
+1.1V IN
C
VR_TT# OUT
---- OPTIONAL
----
---- OPTIONAL
1 _PGOOD
R16
2
3
PSI#
RBIAS
R8
147K ₄
R9 ₅
VR_TT#
NTC
TBD
NTC
TBD
6
VW
7 _COMP
8 _FB
C6
39PF
R10 C11
536 390PF
9 _ISEN3
10 _ISEN2
C3
R7
R11
B
150PF 324K
----ISEN3 _IN
ISEN2 IN
ISEN1 IN
2.37K
41
EP
R20
0
OPTIONAL
R17
----
VCORE IN
10
A
VCCSENSE IN
----
VSSSENSE IN
R18
10
8
7
VIN IN
IRF7821 DNP
Q4
Q10
R57 C31
IRF7832 IRF7832
Q5
Q11
0 0.22UF
L2
0.36UH
D
OUT VCORE
BOOT2 ³⁰
UGATE2 ²⁹
IRF7821 DNP
Q2
Q8
C
PHASE2 ²⁸
U6
ISL62883HRZ
VSSP2 ²⁷
LGATE2 ²⁶
VCCP ²⁵
PWM3 ²⁴
LGATE1 ²³
IN +5V
R56 C30
IRF7832 IRF7832
Q3
Q9
0 0.22UF
L1
0.36UH
VSSP1 ²²
PHASE1 ²¹
R37
1 ^R40
0
IN +5V
IN VIN
OUT IMON
IN VSSSENSE
IN VSUM+
R30
604
----_C-₈-₁--_R-₁-₀-₉ --
820PF 100
-------------
OPTIONAL
6
IN VSUM-
PLACE NEAR L1
5
4
B
IRF7821 DNP
Q6
Q12
R58 C32
0 0.22UF
IRF7832 IRF7832
Q7
Q13
L3
0.36UH
LAYOUT NOTE:
ROUTE UGATE1 TRACE IN PARALLEL
WITH THE PHASE1 TRACE GOING TO
THE SOURCE OF Q2 AND Q8
ROUTE LGATE1 TRACE IN PARALLEL
WITH THE VSSP1 TRACE GOING TO
THE SOURCE OF Q3 AND Q9
U3
SAME RULE APPLIES TO OTHER PHASES ^A
UGATE
BOOT
PWM
GND
PHASE
FCCM
VCC
LGATE
IN +5V
ISL6208
TITLE: _{ISL62883 REFERENCE DESIGN}
3-PHASE, DCR SENSING
ENGINEER:
JIA WEI
3
2
DATE:
JULY 2009
PAGE:
1 OF 1
1
FIGURE 27. 3-PHASE REFERENCE DESIGN