ISL6263B Datasheet, PDF (4/18 Pages) Intersil Corporation – 5-Bit VID Single-Phase Voltage Regulator with Current Monitor for IMVP-6+ Santa Rosa GPU Core

ISL6263B
Simplified Application Circuit for Resistive Current Sensing
R_VDD
C_VDD
R_RBIAS
C_SOFT
VDD
RBIAS
SOFT
PVCC
VIN
UGATE
V_5V
C_PVCC
Q_HS
C_IMON
R_IMON
PGOOD
IMON
BOOT
PHASE
C_BOOT
L_OUT
R_SNS
VID<0:4>
Q_LS
VR_ON
LGATE
AF_EN
PGND
FDE
V_{CC_SNS}
VSEN
V_{SS_SNS}
RTN
R_S
VW
VSUM
ISL6263B
R_FSET
C_FSET
C_N
VO
C_COMP1
R_COMP C_COMP2
R_DIFF2
C_DIFF
R_DIFF1
COMP
FB
OCSET
DFB
VDIFF
VSS
DROOP
R_GND
0Ω
R_OCSET R_DRP1
R_DRP2
C_DRP
V_IN
C_IN
V_CCGFX
C_OUT
FIGURE 3. ISL6263B GPU RENDER-CORE VOLTAGE REGULATOR SOLUTION WITH RESISTIVE CURRENT SENSING
4
FN6388.3
July 8, 2010