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ISL6540A Datasheet, PDF (5/22 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability
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ISL6540A
Typical Application III (Dual Data Rate I or II)
VDDQ
1.8V or 2.5V
5V
REN1
ENABLE
1kΩ
CVFF
RVFF
*CF1
VIN
VFF
EN
LIN
*RCC
DBOOT
CF2
VCC
PVCC
BOOT
HSOC
RHSOC
REN2
CF4
UGATE
CHSOC
1k
15nF
1k
DIMM
REFIN
REFOUT
PG
CPG_DLY PG_DLY
RFS
FS
ISL6540A
PHASE
LGATE
PGND
LSOC
RLSOC
COMP CLSOC
CHFIN
Q1
Q2
CBIN
* Note: RCC*CF1<10µs
CBOOT
LOUT
CHFOUT
VTT
1.25V (DDR I)
0.9V (DDR II)
CBOUT
ROFS+
MARCTRL
OFS+
RMARG
ROFS-
OFS-
SS
CSS
ZFB
C2
C1
R2
FB
VMON
VSEN+
VSEN-
C3
R3
R1 ZIN
CSEN
RFB
LINDRV GND GND
5
FN6288.5
October 7, 2008
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