ISL62882_14 Datasheet, PDF (30/42 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

8
7
VID0 IN
VID1 IN
VID2 IN
VID3 IN
VID4 IN
VID5 IN
VID6 IN
D
VR_ON IN
DPRSLPVR IN
+3.3V IN
PGOOD OUT
+1.1V IN
OPTIONAL ^-----
OPTIONAL
----
VR_TT#
IN
R16
47.5K
C
-_R-₈----_R9-
DNP DNP
----
------------
OPTIONAL
----
C6
R10 C11
15PF
C3
R7
2.37K 270PF
R11
---- ^{100PF 422K 6.98K}
PGOOD
PSI#
RBIAS
VR_TT#
NTC
VW
COMP
FB
FB2
ISEN2
EP
R20
B
0
R17
VCORE IN
10
OPTIONAL
----
VCCSENSE IN
----
VSSSENSE IN
R18
10
A
8
7
6
5
4
3
2
1
U6
ISL62882HRZ
VIN IN
BOOT2
UGATE2
PHASE2
VSSP2
LGATE2
VCCP
LGATE1B
LGATE1A
VSSP1
PHASE1
IN +5V
IRF7821
Q2
IRF7832 IRF7832
Q3
Q9
L1
0.88UH
2.3MOHM
D
OUT VCORE
C
R37
1 ^R40
0
R56 C30
0
IN +5V
IN VIN
0.22UF
OUT IMON
IN VSSSENSE
R63
3.65K
R30
3.01K
----_C-₈₁---_R1-₀-₉--
DNP DNP
------------
OPTIONAL
PLACE NEAR L1
B
LAYOUT NOTE:
ROUTE UGATE TRACE IN PARALLEL
WITH THE PHASE TRACE GOING TO
THE SOURCE OF Q2
ROUTE LGATE TRACE IN PARALLEL
WITH THE VSSP TRACE GOING TO
A
THE SOURCE OF Q3
FIGURE 30. 1-PHASE GPU APPLICATON REFERENCE DESIGN
6
5
4
TITLE: _{ISL62881 GPU REFERENCE DESIGN}
1-PHASE, DCR SENSING
ENGINEER:
JIA WEI
3
2
DATE:
3/16/2009
PAGE:
1 OF 1
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