ISL6548 Datasheet, PDF (2/15 Pages) Intersil Corporation – ACPI Regulator/Controller for Dual Channel DDR Memory Systems

Block Diagram
DRIVE4
FB4
REFADJ4
DRIVE3
FB3
DRIVE2_U
FB2
DRIVE2_L
P12V
EA4
P12V
EA3
P12V
EA2
P12V
5VSBY
P12V
VDDQ
R_GU
GMCH DUAL LDO
R_GL
POR
S3# S5#
FB
COMP
EA1
PWM
5VSBY
MONITOR AND CONTROL
SOFTSTART & ENABLE A
SOFTSTART & ENABLE B
SOFTSTART & ENABLE C
ENABLE VIDPGD
ENABLE DDR_VTT
VOLTAGE
REFERENCE
0.800V
0.680V (-15%)
0.920V (+15%)
UV/OV
UV
UV
UV/OV
FAULT
S3
OSCILLATOR
250kHz
OC
COMP
20µA
VTT
REG
R_U
R_L
BOOT
UGATE
LGATE
PHASE
OCSET
VTTSNS
VDDQ(2)
VTT(2)
VREF_IN
VIDPGD
GND PAD
GND(2)