ISL62883 Datasheet, PDF (5/39 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

ISL62883, ISL62883B
Block Diagram
VIN VSEN ISEN1 ISEN3 ISEN2 PGOOD CLK_EN#
VDD
VR_ON
PSI#
DPRSLPVR
RBIAS
VID0
VID1
VID2
VID3
VID4
VID5
VID6
RTN
FB
COMP
VW
IMON
ISUM+
ISUM-
MODE
CONTROL
DAC
AND
SOFT
START
CURRENT
BALANCE
PGOOD &
CLK_EN#
LOGIC
IBAL
FLT
PROTECTION
WOC OC
VIN
CLOCK
IBAL VIN VDAC
MODULATOR
VDAC
COMP VW
COMP
COMP
IBAL VIN VDAC
6µA 54µA 1.20V
1.24V
DRIVER
SHOOT THROUGH
PROTECTION
DRIVER
Σ
E/A
MODULATOR
COMP
IBAL VIN VDAC
IDROOP
IMON
CURRENT
SENSE
MODULATOR
WOC
COMP
2.5X
CURRENT
COMPARATORS
60UA
NUMBER OF
OC
PHASES
GAIN
SELECT
Σ
DRIVER
SHOOT THROUGH
PROTECTION
DRIVER
ADJ. OCP
THRESHOLD
COMP
VR_TT#
NTC
BOOT2
UGATE2
PHASE2
LGATE2
VSSP2
PWM3
BOOT1
UGATE1
PHASE1
VCCP
LGATE1
VSSP1
GND
5
FN6891.2
February 25, 2010