ISL62882_14 Datasheet, PDF (31/42 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
PGOOD OUT
PSI# IN
+1.1V IN
C
VR_TT# OUT
---- OPTIONAL
R16
147K
R8
R9
----
C5
DNP DNP
----
22PF
C6
R10 C11
10PF
C3
R7
562 390PF
R11
B
150PF 412K
2.87K
OPTIONAL
----ISEN2 _IN
ISEN1 IN
R17
VCORE IN
10
A
VCCSENSE IN
VSSSENSE IN
R18
10
8
7
R23
1.91K
PGOOD
PSI#
RBIAS
VR_TT#
NTC
VW
COMP
FB
FB2
ISEN2
EP
R20
0
OPTIONAL
----
----
VIN IN
IRF7821 IRF7821
Q4
Q10
R57 C31
IRF7832 IRF7832
Q5
Q11
0 0.22UF
L2
0.36UH
D
OUT VCORE
BOOT2
IRF7821 IRF7821
Q2
Q8
C
UGATE2
U6
ISL62882HRZ
PHASE2
VSSP2
LGATE2
VCCP
LGATE1B
IN +5V
R56 C30
IRF7832 IRF7832
Q3
Q9
0 0.22UF
L1
0.36UH
LGATE1A
VSSP1
PHASE1
B
R37
1 ^R40
0
IN +5V
IN VIN
OUT IMON
IN VSSSENSE
IN VSUM+
R30
1K
---_C-₈-₁--_R-₁-₀₉--
1200PF 100
-----------
OPTIONAL
6
IN VSUM-
PLACE NEAR L1
5
4
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
SAME RULE APPLIES TO OTHER PHASES ^A
TITLE: _{ISL62882 REFERENCE DESIGN}
2-PHASE, DCR SENSING
ENGINEER:
JIA WEI
3
2
DATE:
JULY 2009
PAGE:
1 OF 1
1
FIGURE 31. 2-PHASE CPU APPLICATION REFERENCE DESIGN