ISL6244CR Intersil, ISL6244CR Datasheet - Page 8

• Manufacturer Part Number: ISL6244CR
• Description: IC CTRLR PWM 2-4-PHASE 32-QFN
• Manufacturer: Intersil

Specifications of ISL6244CR

• Pwm Type: Voltage/Current Mode
• Number Of Outputs: 4
• Frequency - Max: 4MHz
• Duty Cycle: 75%
• Voltage - Supply: 4.75 V ~ 5.25 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Frequency-max: 4MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Application: 3-Phase Buck Converter with r
6800nF
R
R
ADJ2
ADJ1
12nF
603
VIN
R
2.5K
OFS
R
R
2.43K
C
R
10K
90K
FB
C
C
T
107K
715
RGND
VSEN
VDIFF
FB
VFF
IOUT
COMP
FS
EN
VID4
VID2
VID1
PGOOD
OFS
VID3
VID0
ISL6244
GND
8
PWM4
PWM1
ISEN4
ISEN1
PWM3
PWM2
ISEN2
ISEN3
VCC
+5V
NC
FIGURE 11. TYPICAL APPLICATION
PWM
PWM
PWM
EN
EN
EN
ISL6244
+5V
VCC
+5V
+5V
VCC
VCC
DRIVER
DRIVER
DRIVER
ISL6207
ISL6207
ISL6207
BOOT
BOOT
BOOT
DS(ON)
UGATE
PHASE
LGATE
GND
UGATE
UGATE
LGATE
GND
LGATE
GND
PHASE
PHASE
0.1µF
0.1µF
0.1µF
Current Sensing
IRF7811W
SI4362
IRF7811W
IRF7811W
SI4362
SI4362
3x10µF
3x10µF
3x10µF
VIN
VIN
VIN
820PTC
820PTC
R
820PTC
R
R
ISEN2
ISEN3
ISEN1
0.56µH
0.56µH
0.56µH
December 28, 2004
6x330µF
low ESR
12x22µF
CERAMIC
V
OUT
FN9106.3