ISL8036 Просмотр технического описания (PDF) - Renesas Electronics
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ISL8036 Datasheet PDF : 26 Pages
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ISL8036, ISL8036A
ISL8036A 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, L1 = L2 = 0.6µH,
FSW = 2.5MHz.
100
2.5VOUT
100
2.5VOUT
3.3VOUT
90
90
80
70
1.2VOUT
1.5VOUT
1.8VOUT
80
70
1.2VOUT
1.5VOUT
1.8VOUT
60
60
50
50
40
0.0
0.5
1.0
1.5
2.0
OUTPUT LOAD (A)
2.5
3.0
FIGURE 31. EFFICIENCY vs LOAD, 3.3VIN DUAL CHANNEL 1,
TA = +25°C
40
0.0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 32. EFFICIENCY vs LOAD, 5VIN DUAL CHANNEL 1,
TA = +25°C
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0
2.7VIN
3.3VIN
5VIN
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 33. POWER DISSIPATION vs LOAD, 1.8VOUT DUAL CHANNEL 1,
TA = +25°C
1.810
1.805
1.800
1.795
1.790
1.785
5VIN
3.3VIN
2.7VIN
1.780
0
0.5
1.0
1.5
2.0
2.5
3.0
OUTPUT LOAD (A)
FIGURE 34. VOUT REGULATION vs LOAD, 1.8VOUT DUAL CHANNEL 1,
TA = +25°C
1.810
1.805
1.800
1.795
1.790
1.785
3A LOAD
1.5A LOAD
0A LOAD
1.780 2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
FIGURE 35. VOUT REGULATION vs VIN, 1.8VOUT DUAL CHANNEL 1,
TA = +25°C
LX1 2V/DIV
IL1 0.5A/DIV
VOUT RIPPLE 20mV/DIV
FIGURE 36. STEADY STATE OPERATION AT NO LOAD CHANNEL 1
FN6853 Rev 3.00
August 17, 2012
Page 15 of 26
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