ISL62882 Datasheet, PDF (11/42 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

ISL62882, ISL62882B
V+5 V+5 Vin
Rbias
Rntc
o_C
VDD VCCP VIN
RBIAS
NTC
BOOT2
PGOOD
VR_TT#
CLK_EN#
VID<0:6>
PSI#
DPRSLPVR
VR_ON
Rdroop
PGOOD
UGATE2
VR_TT#
PHASE2
CLK_EN#
VIDs
PSI#
LGATE2
VSSP2
DPRSLPVR
ISEN2
VR_ON
VW
Rfset
BOOT1
ISL62882
UGATE1
PHASE1
LGATE1b
COMP
FB2
FB
LGATE1a
VSSP1
ISEN1
VSEN
ISUM+
VCCSENSE
VSSSENSE
Rimon
IMON
Ris
RTN
Cis
IMON
ISUM-
(Bottom Pad)
VSS
Rn
Cn ^oC
Ri
Vin
Rsum
L
Vo
FIGURE 3. TYPICAL GPU APPLICATION CIRCUIT USING DCR SENSING
V+5 V+5 Vin
Rbias
Rntc
o_C
VDD VCCP VIN
RBIAS
NTC
BOOT2
IMVP6_PWRGD
VR_TT#
CLK_ENABLE
VID<0:6>#
PSI#
DPRSLPVR
VR_ON
Rdroop
PGOOD
UGATE2
VR_TT#
PHASE2
CLK_EN#
VIDs
PSI#
LGATE2
VSSP2
DPRSLPVR
ISEN2
VR_ON
VW
Rfset
BOOT1
ISL62882
UGATE1
PHASE1
LGATE1b
COMP
FB2
FB
LGATE1a
VSSP1
ISEN1
VSEN
ISUM+
VCCSENSE
VSSSENSE
Rimon
IMON
Ris
RTN
Cn
Cis
Ri
IMON
ISUM-
(Bottom Pad)
VSS
Vin
L
Rsen
V_o
Rsum2
FIGURE 4. TYPICAL GPU APPLICATION CIRCUIT USING RESISTOR SENSING
11
FN6890.2
April 29, 2010