ISL6420IR-T Intersil, ISL6420IR-T Datasheet - Page 9

• Manufacturer Part Number: ISL6420IR-T
• Description: IC CTRLR PWM SYNC BUCK 20-QFN
• Manufacturer: Intersil

Specifications of ISL6420IR-T

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 1.4MHz
• Duty Cycle: 100%
• Voltage - Supply: 4.5 V ~ 16 V
• Buck: Yes
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Frequency-max: 1.4MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Performance Curves
0.604
0.602
0.598
0.596
0.594
1.15
1.05
0.95
0.85
0.6
-40
-40
FIGURE 3. IOCSET vs. TEMPERATURE
FIGURE 1. VREF vs. TEMPERATURE
FIGURE 5. PWM WAVEFORMS
-15
-15
TEMPERATURE (°C)
TEMPERATURE (°C)
10
10
9
35
35
60
60
85
85
ISL6420
FIGURE 4. EFFICIENCY vs. LOAD CURRENT (VOUT = 3.3V)
98
96
94
92
90
88
86
84
82
80
320
310
300
290
280
270
0
-40
FIGURE 6. LOAD TRANSIENT RESPONSE
1
FIGURE 2. V
2
-15
3
V
SW
TEMPERATURE (°C)
IN
4
10
= 12V
vs. TEMPERATURE
LOAD (A)
5
6
35
V
7
IN
= 5V
February 13, 2008
60
8
9
FN9151.5
85
10