ISL62883C Datasheet, PDF (11/43 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5™ Mobile CPUs and GPUs

ISL62883C
Simplified Application Circuits (Continued)
V+5 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
Rdroop
PGOOD
ISEN3
VR_TT#
BOOT2
CLK_EN#
VIDs
UGATE2
PSI#
PHASE2
DPRSLPVR
VR_ON
VW
LGATE2
VSSP2
ISEN2
Rfset
ISL62883C ^BOOT1
UGATE1
COMP
FB
VSEN
PHASE1
LGATE1
VSSP1
ISEN1
ISUM+
VCCSENSE
VSSSENSE
Rimon
RTN
IMON
IMON
ISUM-
(Bottom Pad)
VSS
V+5
VCC
UGATE
FCCM
PHASE
ISL6208
PWM
BOOT
LGATE
GND
Rs3
Cs3
Vin
L3
L2
Rs2
Cs2
L1
Rs1
Cs2
Cn
Ri
Rsum3
Rsum2
Rsum1
Rsen3
Rsen2
Vo
Rsen1
FIGURE 2. TYPICAL 3-PHASE APPLICATION CIRCUIT USING RESISTOR SENSING
V+5 V+5 Vin
Rbias
Rntc
o_C
VDD VCCP VIN
RBIAS
PWM3
NTC
BOOT2
PGOOD
VR_TT#
CLK_EN#
VID<0:6>
PSI#
DPRSLPVR
VR_ON
PGOOD
UGATE2
VR_TT#
PHASE2
CLK_EN#
VIDs
PSI#
LGATE2
VSSP2
DPRSLPVR
ISEN2
VR_ON
VW
Rfset
BOOT1
ISL62883C
UGATE1
PHASE1
Rs2
Cs2
Vin
L2
Vo
L1
Rdroop
COMP
FB2
FB
VSEN
LGATE1a
VSSP1
ISEN1
ISUM+
VCCSENSE
VSSSENSE
Rimon
IMON
RTN
IMON
ISUM-
(Bottom Pad)
VSS
Rs1
Cs1
Rn
Cn ^oC
Rsum2
Rsum1
Ri
FIGURE 3. TYPICAL 2-PGHASE APPLICATION CIRCUIT USING DCR SENSING
11
FN7557.1
March 18, 2010