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ISL6273 Datasheet(PDF) 4 Page - Intersil Corporation

Part No. ISL6273
Description  1.2A Low Quiescent Current 1.5MHz High Efficiency Synchronous Buck Regulator
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL6273 Datasheet(HTML) 4 Page - Intersil Corporation

 
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4
FN9256.0
March 7, 2006
Typical Operating Performance
FIGURE 1. EFFICIENY vs LOAD CURRENT (VIN = 3.6V)
FIGURE 2. VOUT vs LOAD CURRENT (VIN = 3.6V)
FIGURE 3. EFFICIENCY vs LOAD CURRENT (VO = 1.8V)
FIGURE 4. VOUT vs LOAD CURRENT (VIN = 2.7V)
FIGURE 5. IQ vs VIN (PFM)
FIGURE 6. IQ vs VIN (PWM)
VO = 2.5V
VO = 1.2V
40
50
60
70
80
90
100
0.1
1
10
100
1000
LOAD CURRENT (mA)
VO = 2.8V
3.3
3.31
3.32
3.33
3.34
3.35
3.36
3.37
0.1
1
10
100
1000
LOAD CURRENT (mA)
VIN = 3.6V
40
50
60
70
80
90
100
0.1
1
10
100
1000
LOAD CURRENT (mA)
VIN = 2.7V
1.74
1.76
1.78
1.8
1.82
1.84
0.1
1
10
100
1000
LOAD CURRENT (mA)
VIN = 2.7V
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
2.9
3.4
3.9
4.4
4.9
5.4
VIN VOLTAGE RANGE (2.9V-5.5V)
INPUT CURRENT IN PFM MODE OF 2.8V
0
1
2
3
4
5
6
7
2.9
3.4
3.9
4.4
4.9
5.4
VIN VOLTAGE RANGE (2.9V-5.5V)
INPUT CURRENT IN PWM MODE OF 2.8V
ISL6273


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