ISL62881C_14 Datasheet, PDF (10/37 Pages) Intersil Corporation – Single-Phase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

ISL62881C, ISL62881D
Simplified Application Circuits (Continued)
V+5 V+5 VIN
RBIAS
VDD VCCP VIN
RBIAS
PGOOD
CLK_EN#
VID<0:6>
DPRSLPVR
VR_ON
RDROOP
PGOOD
CLK_EN#
VIDS
DPRSLPVR
VR_ON
VW
ISL62881C
RFSET
BOOT
COMP
FB
UGATE
PHASE
LGATE
VSSP
VSEN
ISUM+
VIN
L
RSUM
RSEN
VO
VCCSENSE
VSSSENSE
RIMON
IMON
RTN
IMON
ISUM-
(BOTTOM PAD)
VSS
CN
RI
FIGURE 2. ISL62881C TYPICAL APPLICATION CIRCUIT USING RESISTOR SENSING
V+5 V+5 VIN
R BIAS
VDD VCCP VIN
R BIAS
OC
VR_TT#
PGOOD
CLK_EN#
VID<0:6>
DPRSLPVR
VR_ON
NTC
VR_TT#
PGOOD
CLK_EN#
VIDS
DPRSLPVR
VR_ON
VW
ISL62881D
RFSET
BOOT
UGATE
RDROOP
COMP
FB
VSEN
PHASE
LGATEB
LGATEA
VSSP
ISUM+
V IN
L
VO
RSUM
V C C SENSE
V S S SENSE
R IM ON
IMON
RTN
IMON
ISUM-
GND
RN
CN ^OC
RI
FIGURE 3. ISL62881D TYPICAL APPLICATION CIRCUIT USING DCR SENSING
10
FN7596.0
March 8, 2010