ISL8036 데이터 시트보기 (PDF) - Intersil
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ISL8036 Datasheet PDF : 25 Pages
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ISL8036, ISL8036A
ISL8036 Typical Operating Performance for Dual PWM Operation
Unless otherwise noted, operating conditions are: VOUT1 = 1.8V; VOUT2 = 0.8V; IOUT1 = 0A to 3A; IOUT2 = 0A to 3A,
FSW = 1MHz.
100
100
90
80
1.8VOUT 2.5VOUT
70
1.2VOUT 1.5VOUT
90
80
1.8VOUT 2.5VOUT
70 3.3VOUT
1.2VOUT 1.5VOUT
60
60
50
50
40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
FIGURE 4. EFFICIENCY, VIN = 3.3V, TA = +25°C
40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
FIGURE 5. EFFICIENCY, VIN = 5V, TA = +25°C
1.2
1.0
0.8
3.3VIN
0.6
5VIN
0.4
0.2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
IOUT (A)
FIGURE 6. POWER DISSIPATION, VOUT = 1.8V,
TA = +25°C
1.810
1.805
1.800
1.795
1.790
1.785
5VIN
2.7VIN
3.3VIN
1.780
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 7. VOUT REGULATION vs LOAD, 1.8V,
TA = +25°C
1.810
1.805
1.800
1.795
1.790
1.785
3A LOAD
0A LOAD
2A LOAD
1.780
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
FIGURE 8. OUTPUT VOLTAGE REGULATION vs VIN,
1.8V, TA = +25°C
LX1 2V/DIV
VOUT RIPPLE 20mV/DIV
IL1 0.5A/DIV
FIGURE 9. STEADY STATE OPERATION AT NO LOAD
CHANNEL 1
10
FN6853.1
October 18, 2010
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