ISL6217ACV-T View Datasheet(PDF) - Intersil
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ISL6217ACV-T Datasheet PDF : 20 Pages
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ISL6217A
Typical Application - 2-Phase Converter
Figure 1 shows a 2-Phase Synchronous Buck Converter
circuit used to provide “CORE” voltage regulation for the
Intel Pentium IV mobile processor using IMVP-IV™ and
IMVP-IV+™ voltage positioning.
The ISL6217A PWM controller can be configured for two or
one channel operation, and the ISL6217A can change the
number of power channels in operation, dynamically. The
number of channels of operation can be changed through
the PWRCH pin. The ISL6217A can be configured for two
channel operation in “Active” mode and one channel
operation in “Deep” and “Deeper Sleep” modes through logic
connections to the PWRCH pin. The following configuration
uses two channel operation in “Active” mode and one
channel operation in “Deep” and “Deeper Sleep” modes.
The circuit shows pin connections for the ISL6217A PWM
controller in the 38 lead TSSOP package.
+5VDC
+5VDC
Vbattery
VR_ON
DPRSLPVR
STP_CPU#
VID
PWRGD
VDD
VBAT
DACOUT
ISEN1
DSV
PHASE1
FSET
UG1
PWRCH
BOOT1
EN
VSSP1
DRSEN
LG1
DSEN#
VDDP
VID0 ISL6217A LG2
VID1 TSSOP VSSP2
VID2
BOOT2
VID3
UG2
VID4
PHASE2
VID5
PGOOD
ISEN2
VSEN
EA+
DRSV
COMP
STV
FB
OCSET
SOFT
VSS
+Vcc_core
FIGURE 1. TYPICAL APPLICATION CIRCUIT FOR ISL6217A MULTIPHASE PWM CONTROLLER
7
FN9107.3
June 30, 2005
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