ISL6244CR Intersil, ISL6244CR Datasheet - Page 24

• 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

KEY
V
C
battery
BP
ISLAND ON POWER PLANE LAYER
+5V
R
C
R
FB
C
C
R
OFS
VCC
COMP
FB
VDIFF
IOUT
24
OFS
FIGURE 32. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
GND
ISL6244
VFF
ISEN
RGND
VSEN
PWM
FS
R
R
ADJ1
ADJ2
R
ISEN(n)
R
FS
C
BP
( close to LGATE if thermistor is used)
(close to controller)
ISLAND ON CIRCUIT PLANE LAYER
ISL6244
+5V
VCC
PWM
ISL6207
GND
PHASE
UGATE
L
LGATE
BOOT
parasitic
C
BOOT
USE INDIVIDUAL METAL RUNS
FOR EACH CHANNEL TO HELP
ISOLATE OUTPUT STAGES
VIA CONNECTION TO GROUND PLANE
C
L
IN
O1
PHASE
V
OUT
C
OUT
December 28, 2004
FN9106.3