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ISL6260 Datasheet(PDF) 13 Page - Renesas Technology Corp

Part # ISL6260
Description  Multiphase Core Regulator for IMVP-6 Mobile CPUs
PDF  26 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL6260 Datasheet(HTML) 13 Page - Renesas Technology Corp

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13
FN9162.1
January 3, 2006
Simplified Application Circuit for Resistive Current Sensing
Figure 36 shows a simplified application circuit for the
ISL6260 or ISL6260B converter. Both the MOSFET drivers
and main control IC are shown. The driver has a force
continuous-conduction-mode (FCCM) input, that when
disabled, allows the regulator to operate in Diode Emulation
for improved light load efficiency.
R
i
R
1
R
3
V
O
V
+5
ISL6208
V
IN
V
+5
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
C
3
C
1
C
2
V
+5
7
VID<0:6>
DPRSLPVR
VR_ON
C
O
SOFT
VDIFF
OCSET
FB
PSI#
RBIAS
FCCM
PWM3
PWM2
VW
VO
COMP
VIDs
DPRSLPVR
PGD_IN
VIN
VR_ON
GND
PGOOD
PWM1
VDD
RTN
V
IN
VR_TT#
VSUM
R
FSET
PSI#
Remote
Sense at
CPU
CORE
ISEN1
ISEN2
ISEN3
VSEN
CLK_EN#
MCHOK
CLK_ENABLE#
ISL6208
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
VR_TT#
NTC
ISL6260
IMVP6_PWRGD
V
IN
V
+5
ISL6208
VCC
UGATE
LGATE
PHASE
BOOT
PWM
FCCM
GND
V
IN
DROOP
DFB
VO'
VSUM
L
O
R
L
C
L
VSUM
ISEN2
VO'
R
SEN
L
O
R
L
VSUM
ISEN1
VO'
R
SEN
L
O
R
L
C
L
VSUM
ISEN3
VO'
R
SEN
DPRSTP#
DPRSTP#
V
+3.3
3V3
C
L
FIGURE 36. TYPICAL APPLICATION CIRCUIT FOR DISCRETE RESISTOR CURRENT SENSING
ISL6260, ISL6260B



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