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ISL8014A Datasheet(PDF) 6 Page - Intersil Corporation

Part # ISL8014A
Description  4A Low Quiescent Current 1MHz 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

ISL8014A Datasheet(HTML) 6 Page - Intersil Corporation

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6
FN7525.1
December 4, 2009
Typical Operating Performance
Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 2.5V to
5.5V, EN = VIN, SYNCH = 0V, L = 1.5µH, C1 = 2x22µF, C2 = 2x22µF, IOUT = 0A
to 4A
.
FIGURE 3. EFFICIENCY vs LOAD (1MHz 3.3 VIN PWM)
FIGURE 4. EFFICIENCY vs LOAD (1MHz 3.3 VIN PFM)
FIGURE 5. EFFICIENCY vs LOAD (1MHz 5VIN PWM)
FIGURE 6. EFFICIENCY vs LOAD (1MHz 5VIN PFM)
FIGURE 7. POWER DISSIPATION vs LOAD (1MHz,
VOUT = 1.8V)
FIGURE 8. POWER DISSIPATION WITH NO LOAD vs
VIN (PWM VOUT = 1.8V)
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
OUTPUT LOAD (A)
2.5VOUT-PWM
1.8VOUT-PWM
1.5VOUT-PWM
1.2VOUT-PWM
40
50
60
70
80
90
100
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT LOAD (A)
2.5VOUT-PFM
1.8VOUT-PFM 1.5VOUT-PFM1.2VOUT-PFM
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
OUTPUT LOAD (A)
2.5VOUT-PWM1.8V
OUT-PWM
1.5VOUT-PWM
1.2VOUT-PWM
3.3VOUT-PWM
40
50
60
70
80
90
100
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT LOAD (A)
2.5VOUT-PFM1.8VOUT-PFM
1.5VOUT-PFM
1.2VOUT-PFM
3.3VOUT-PFM
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
OUTPUT LOAD (A)
5VIN-PWM
3.3VIN-PFM
3.3VIN-PWM
5VIN-PFM
0
25
50
75
100
125
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VIN (V)
ISL8014A


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