ISL6263C Datasheet, PDF (2/18 Pages) Intersil Corporation – 5-Bit VID Single-Phase Voltage Regulator with Current Monitor for GPU Core Power

Block Diagram
VDD
VSS
RBIAS
OCSET
ISP
ISN
ICOMP
VO
V_REF
+
1.545V
−
↓↓
1:1
−
OCP
+
+
−
VR_ON
×2
−
SCP
+
+
−
VSEN
RTN
VDIFF
VID0
VID1
VID2
VID3
VID4
+
−
VID DAC
I_SS
↓
I_DVID
+
E/A
−
PGOOD
POR
VREF
PGOOD
SHORT CIRCUIT
OVERCURRENT
UNDERVOLTAGE
OVERVOLTAGE
FAULT LATCH
PWM
CONTROL
DIODE
EMULATION
AUDIBLE
FREQUENCY
FILTER
SEVERE
OVERVOLTAGE
SOFT
CROWBAR
CONTROL
X31
DRIVER
SHOOT-THROUGH
PROTECTION
DRIVER
+
g_mV_IN PWM
−
Δ V_W Δ V_W
20% 30%
R³
V _{W MODULATOR}
+
g_mV_soft V_COMP
−
SOFT
FB
COMP IMON VIN
FIGURE 1. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM OF THE ISL6263C
BOOT
UGATE
PHASE
PVCC
LGATE
PGND
FDE
AF_EN
VW