ISL6263A Datasheet, PDF (3/19 Pages) Intersil Corporation – 5-Bit VID Single-Phase Voltage Regulator with Power Monitor for IMVP-6+ Santa Rosa GPU Core

Block Diagram
VDD
VSS
RBIAS
OCSET
VSUM
DFB
DROOP
VO
VSEN
RTN
VDIFF
VID0
VID1
VID2
VID3
VID4
VR_ON
PGOOD
V_REF
+
1.545V
-
1:1
-
OCP
+
+
-
x2
-
SCP
+
+
-
+
Σ
+
+
-
VID DAC
I_SS
I_DVID
X17.5
+
E/A
-
POR
VREF
PGOOD
SHORTCIRCUIT
OVERCURRENT
UNDERVOLTAGE
OVERVOLTAGE
FAULTLATCH
PWM
CONTROL
DIODE
EMULATION
AUDIBLE
FREQUENCY
FILTER
SEVERE
OVERVOLTAGE
SOFT
CROWBAR
CONTROL
DRIVER
SHOOT-THROUGH
PROTECTION
DRIVER
+
g_mV_in PWM
-
ΔV_W ΔV_W
20% 30%
R³
V_W
MODULATOR
+
g_mV_soft V_COMP
-
SOFT
FB
COMP PMON VIN
FIGURE 1. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM OF THE ISL6263A
BOOT
UGATE
PHASE
PVCC
LGATE
PGND
FDE
AF_EN
VW