ISL62881C_14 Datasheet, PDF (28/37 Pages) Intersil Corporation – Single-Phase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

VID0 IN
VID1 IN
VID2 IN
VID3 IN
VID4 IN
VID5 IN
VID6 IN
VR_ON IN
DPRSLPVR IN
+3.3V IN
CLK_EN# OUT
PGOOD OUT
OPTIONAL
----
----
OPTIONAL
----
C6
56PF
C3
R7
---- ^{390PF 226K}
R17
VCORE IN
10
VCCSENSE IN
VSSSENSE IN
R18
10
R10 C11
715 1000PF
R11
1
2
R16 ₃
147K ₄
5
6
7
29
CLK_EN#
PGOOD
RBIAS
VW
COMP
FB
VSEN
EP
1.33K
R20
----
0
OPTIONAL
----
U6
ISL62881C
VID1 ²¹
VID0 ²⁰
VCCP ¹⁹
LGATE ¹⁸
VSSP ¹⁷
PHASE ¹⁶
UGATE ¹⁵
R37
1 ^R40
0
IN +5V
IN VIN
VIN IN
IRF7821
Q2
IN +5V
R56 C30
IRF7832 IRF7832
Q3
Q9
0 0.22UF
L1
0.45UH
1.1MOHM
OUT IMON
IN VSSSENSE
R63
1.82K
R30
909
---_C8-₁--_R-₁-₀-₉--
DNP DNP
-----------
OPTIONAL
PLACE NEAR L1
FIGURE 27. CPU APPLICATION REFERENCE DESIGN
OUT VCORE
LAYOUT NOTE:
ROUTE UGATE TRACE IN PARALLEL
WITH THE PHASE TRACE GOING TO
THE SOURCE OF Q2 AND Q8
ROUTE LGATE TRACE IN PARALLEL
WITH THE VSSP TRACE GOING TO
THE SOURCE OF Q3 AND Q9