ISL62881_10 Datasheet, PDF (25/35 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
VIN IN
IRF7821
Q2
PGOOD OUT
OPTIONAL
----
----
OPTIONAL
----
C6
15PF
C3
R7
---- ^{100PF 422K}
R17
VCORE IN
10
VCCSENSE IN
R16
47K
R10 C11
2.37K 270PF
R11
6.98K
OPTIONAL
----
----
1
CLK_EN#
2 _PGOOD
3 _RBIAS
4 _VW
5 _COMP
6 _FB
7 _VSEN
29
EP
R20
0
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
IN +5V
R56 C30
IRF7832
Q3
0 0.22UF
L1
0.88UH
OUT IMON
IN VSSSENSE
R63
3.65K
R30
3.01K
----_C-₈₁---_R1-₀-₉--
DNP DNP
------------
OPTIONAL
PLACE NEAR L1
FIGURE 25. GPU APPLICATION REFERENCE DESIGN
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
THE SOURCE OF Q3
OUT VCORE