ISL62882_14 Datasheet, PDF (10/42 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

ISL62882, ISL62882B
Simplified Application Circuits
V+5 V+5 Vin
Rbias
VDD VCCP VIN
RBIAS
Rntc
o_C
NTC
BOOT2
PGOOD
PGOOD
UGATE2
VR_TT#
VR_TT#
PHASE2
CLK_EN#
VID<0:6>
PSI#
CLK_EN#
VIDs
PSI#
LGATE2
VSSP2
DPRSLPVR
DPRSLPVR
ISEN2
VR_ON
VR_ON
VW
Rfset
BOOT1
ISL62882
UGATE1
PHASE1
LGATE1b
Rdroop
COMP
FB2
FB
LGATE1a
VSSP1
ISEN1
VSEN
ISUM+
Rs2
Cs2
Vin
L2
Vo
L1
Rs1
Cs1
Rsum2
VCCSENSE
VSSSENSE
Rimon
IMON
Ris
RTN
Cis
IMON
ISUM-
(Bottom Pad)
VSS
Rn
Cn ^oC
Rsum1
Ri
FIGURE 1. TYPICAL CPU APPLICATION CIRCUIT USING DCR SENSING
V+5 V+5 Vin
Rbias
VDD VCCP VIN
RBIAS
Rntc
o_C
NTC
BOOT2
IMVP6_PWRGD
PGOOD
UGATE2
VR_TT#
CLK_ENABLE
VID<0:6>#
PSI#
VR_TT#
CLK_EN#
VIDs
PSI#
PHASE2
LGATE2
VSSP2
DPRSLPVR
DPRSLPVR
ISEN2
VR_ON
VR_ON
Cs2
VW
Rfset
BOOT1
ISL62882
UGATE1
PHASE1
LGATE1b
COMP
LGATE1a
VSSP1
FB2
FB
ISEN1
Rdroop
Cs1
VSEN
ISUM+
VCCSENSE
VSSSENSE
Rimon
IMON
Ris
RTN
Cn
Cis
Ri
IMON
ISUM-
(Bottom Pad)
VSS
Vin
L2
Rs2
L1
Rs1
Rsum2
Rsum1
Rsen2
V_o
Rsen1
FIGURE 2. TYPICAL CPU APPLICATION CIRCUIT USING RESISTOR SENSING
10
FN6890.4
June 21, 2011