ISL6244CR Intersil, ISL6244CR Datasheet - Page 6

• 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 Operating Performance
1.650
1.600
1.550
1.500
1.450
1.400
100
90
80
70
60
50
0
0
FIGURE 9. ISL6244 EFFICIENCY vs LOAD
FIGURE 7. ISL6244 DROOP: V
Vo+ (AMD SPEC)
Vo- (AMD SPEC)
Vbat = 8.4
Vbat = 19
10
OUTPUT CURRENT (A)
20
OUTPUT CURRENT (A)
20
6
Vbat = 10.8
Vbat = 21
30
BAT
40
40
VBAT 8.4V
TARGET
= 8.4V
Vbat = 14.4
50
60
60
ISL6244
FIGURE 8. FOUR PHASE CURRENT BALANCE @ 52A
1.650
1.600
1.550
1.500
1.450
1.400
0
FIGURE 10. ISL6244 DROOP: V
Vo+ (AMD SPEC)
Vo- (AMD SPEC)
OUTPUT CURRENT (A)
20
BAT
40
VBAT 21V
TARGET
= 21V
December 28, 2004
FN9106.3
60