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ISL8023AIRTAJZ Datasheet(PDF) 7 Page - Intersil Corporation

Part # ISL8023AIRTAJZ
Description  3A/4A Low Quiescent Current High Efficiency Synchronous Buck Regulator
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL8023AIRTAJZ Datasheet(HTML) 7 Page - Intersil Corporation

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ISL8023, ISL8024
7
FN7812.0
December 22, 2011
Typical Operating Performance Unless otherwise noted, operating conditions are: T
A = +25°C, VVIN = 5V,
EN = VIN, SYNC = VIN, L = 1.0µH, C1 = 22µF, C2 = 2 x 22µF, IOUT = 0A to 4A).
FIGURE 4. EFFICIENCY vs LOAD (1MHz 3.3 VIN PWM)
FIGURE 5. EFFICIENCY vs LOAD (1MHz 3.3 VIN PFM)
FIGURE 6. EFFICIENCY vs LOAD (1MHz 5VIN PWM)
FIGURE 7. EFFICIENCY vs LOAD (1MHz 5VIN PFM)
FIGURE 8. POWER DISSIPATION vs LOAD (1MHz, VOUT = 1.8V)
FIGURE 9. VOUT REGULATION vs LOAD (1MHz, VOUT = 1.2V)
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IOUT (A)
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IOUT (A)
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IOUT (A)
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
IOUT (A)
0
0.18
0.36
0.54
0.72
0.90
1.08
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IOUT (A)
3.3VIN PWM MODE
5VIN PWM MODE
1.208
1.214
1.220
1.226
1.232
1.238
1.244
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
IOUT (A)
3.3VIN PWM MODE
5VIN PFM MODE
3.3VIN PFM MODE
5VIN PWM MODE


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