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ISL8501 Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza
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Lista de partido
ISL8501 Datasheet PDF : 19 Pages
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ISL8501
Typical Performance Curves Circuit of Figure 2. VIN = 12V, VIN_LDO1 = VIN_LDO2 = VOUT1 = 3.3V, IOUT1 = 1A, VLDO1 = 1.2V,
ILDO1 = 450mA, VLDO2 = 1.8V, ILDO2 = 450mA, TA = -40°C to +85°C unless otherwise noted.
Typical values are at TA = +25°C.
100
100
90
90
80
80
70
60
50
1.8VOUT
1.5VOUT
2.5VOUT 3.3VOUT
5.0VOUT
40
30
1.2VOUT
20
70
60
2.5VOUT 3.3VOUT
50
1.5VOUT
5.0VOUT
40
1.2VOUT
30
20
1.8VOUT
10
10
0
0.00
0.25
0.50
0.75
1.00
1.25
1.50
OUTPUT LOAD (A)
0
0.00
0.25
0.50
0.75
1.00
1.25
1.50
OUTPUT LOAD (A)
FIGURE 3. EFFICIENCY vs LOAD, VIN = 7V
FIGURE 4. EFFICIENCY vs LOAD, VIN = 12V
90
80
70
60
50
40
30
20
10
0
0.00
3.3VOUT
2.5VOUT
1.8VOUT
1.5VOUT
1.2VOUT
0.25
0.50
0.75
1.00
OUTPUT LOAD (A)
5.0VOUT
1.25
1.50
FIGURE 5. EFFICIENCY vs LOAD, VIN = 25V
1.218
1.217
1.216
7VIN
1.215
1.214
1.213
12VIN
25VIN
1.212
0.00
0.25
0.50
0.75
1.00
1.25
1.50
OUTPUT LOAD (A)
FIGURE 6. VOUT REGULATION vs LOAD, 500kHz 1.2VOUT
1.508
1.508
1.507
7VIN
1.507
1.506
1.506
12VIN
25VIN
1.505
0.00
0.25
0.50
0.75
1.00
1.25
1.50
OUTPUT LOAD (A)
FIGURE 7. VOUT REGULATION vs LOAD, 500kHz 1.2VOUT
1.809
1.809
1.808
7VIN
1.808
1.807
1.807
12VIN
25VIN
1.806
0.00
0.25
0.50
0.75
1.00
1.25
1.50
OUTPUT LOAD (A)
FIGURE 8. VOUT REGULATION vs LOAD, 500kHz 1.8VOUT
FN6500 Rev 1.00
July 12, 2007
Page 8 of 19

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