ISL62883_14 Datasheet, PDF (10/37 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs

ISL62883, ISL62883B
Simplified Application Circuits
V+5 V+5 Vin
V+5
Vin
Rbias
Rntc
o_C
VDD VCCP VIN
RBIAS
NTC
PWM3
PGOOD
VR_TT#
CLK_EN#
VID<0:6>
PSI#
DPRSLPVR
VR_ON
PGOOD
ISEN3
VR_TT#
BOOT2
CLK_EN#
VIDs
UGATE2
PSI#
PHASE2
DPRSLPVR
VR_ON
VW
LGATE2
VSSP2
ISEN2
Rfset
ISL62883 ^BOOT1
VCC
UGATE
FCCM
PHASE
ISL6208
PWM
BOOT
LGATE
GND
Rs3
Cs3
Rs2
Cs2
L3
L2
Vo
UGATE1
L1
Rdroop
VCCSENSE
VSSSENSE
COMP
FB
VSEN
RTN
PHASE1
LGATE1
VSSP1
ISEN1
ISUM+
Rs1
Cs1
Ris
Rn
Cn ^oC
Rsum3
Rsum2
Rsum1
Rimon
IMON
Cis
Ri
IMON
ISUM-
(Bottom Pad)
VSS
FIGURE 1. TYPICAL APPLICATION CIRCUIT USING DCR SENSING
V+5 V+5 Vin
V+5
Rbias
Rntc
o_C
VDD VCCP VIN
RBIAS
NTC
PWM3
PGOOD
VR_TT#
CLK_EN#
VID<0:6>
PSI#
DPRSLPVR
VR_ON
Rdroop
PGOOD
ISEN3
VR_TT#
BOOT2
CLK_EN#
VIDs
UGATE2
PSI#
PHASE2
DPRSLPVR
VR_ON
VW
LGATE2
VSSP2
ISEN2
Rfset
ISL62883 ^BOOT1
UGATE1
COMP
FB
VSEN
PHASE1
LGATE1
VSSP1
ISEN1
VCC
UGATE
FCCM
PHASE
ISL6208
PWM
BOOT
LGATE
GND
Rs3
Cs3
Rs2
Cs2
Rs1
Cs2
ISUM+
VCCSENSE
VSSSENSE
Rimon
IMON
RTN
Ris
Cn
Cis
Ri
IMON
ISUM-
(Bottom Pad)
VSS
Vin
L3
L2
L1
Rsum3
Rsum2
Rsum1
Rsen3
Rsen2
Vo
Rsen1
FIGURE 2. TYPICAL APPLICATION CIRCUIT USING RESISTOR SENSING
10
FN6891.4
June 21, 2011