ISL6217 Intersil Corporation, ISL6217 Datasheet - Page 4

• Manufacturer Part Number: ISL6217
• Description: Precision Multi-Phase Buck PWM Controller
• Manufacturer: Intersil Corporation

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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 ISL6217 PWM controller can be configured for two or
one channel operation, and the ISL6217 can change the
number of power channels in operation, dynamically. The
number of channels of operation can be changed through
the PWRCH pin. The ISL6217 can be configured for two
DPRSLPVR
STP_CPU#
PWRGD
VR_ON
VID
FIGURE 1.
+5VDC
4
TYPICAL APPLICATION CIRCUIT FOR ISL6217 MULTIPHASE PWM CONTROLLER
VDD
DACOUT
DSV
FSET
PWRCH
EN
DRSEN
DSEN#
VID0
VID1
VID2
VID3
COMP
FB
SOFT
VID4
VID5
PGOOD
EA+
ISL6217
TSSOP
PHASE1
PHASE2
BOOT1
OCSET
BOOT2
VSSP1
VSSP2
ISEN1
VDDP
ISEN2
VSEN
DRSV
VBAT
UG1
UG2
VSS
LG2
STV
LG1
+5VDC
ISL6217
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 ISL6217 PWM
controller in the 38 lead TSSOP package.
Vbattery
+Vcc_core