ISL62881 Datasheet, PDF (26/35 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
27PF
C3
R7
---- ^{100PF 422K}
R17
VCORE IN
10
VCCSENSE IN
R10 C11
4.87K 470PF
R11
1
2
R16 ₃
147K ₄
5
6
7
29
CLK_EN#
PGOOD
RBIAS
VW
COMP
FB
VSEN
EP
4.22K
R20
----
0
OPTIONAL
----
VSSSENSE IN
R18
10
VID1 ²¹
VID0 ²⁰
U6
VCCP ¹⁹
LGATE ¹⁸
ISL62881HRZ
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
OUT IMON
IN VSSSENSE
R63
3.65K
R30
1.91K
---_C8-₁--_R-₁-₀-₉--
DNP DNP
-----------
OPTIONAL
PLACE NEAR L1
FIGURE 26. 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