ISL1801 Datasheet, PDF (12/30 Pages) Intersil Corporation – sPMIC for Micro Converter Bias and Drivers

ISL1801
Typical Performance Curves
95
90
45V_IN
85
30V_IN
80 15V_IN
75
75V_IN
70
60V_IN
65
90V_IN
60
0
0.05
0.10
0.15
OUTPUT CURRENT (A)
FIGURE 3. VR1 EFFICIENCY vs LOAD CURRENT WITH
V_OUT1 = 10V at F_SW1 = 170kHz
94
6V_IN
92
90
88
14V_IN
10V_IN
86
84
82
80
0.025
0.075
0.125
0.175
OUTPUT CURRENT (A)
FIGURE 4. VR2 EFFICIENCY vs LOAD CURRENT WITH
V_OUT2 = 2.5V at F_SW2 = 210kHz
0.225
89
87
85
83
81
79
V_OUT1 = 10V
77 ^{IOUT1 = 100mA}
F_SW1 = 170kHz
V_OUT2 = 2.5V
I_OUT2 = 200mA
F_SW2 = 210kHz
75
10 20 30 40 50 60 70 80 90 100
INPUT VOLTAGE (V)
FIGURE 5. VR1 + VR2 EFFICIENCY vs INPUT VOLTAGE
10.14
10.12
10.10
10.08
10.06
10.04
15V_IN
30V_IN
45V_IN
60V_IN 75V_IN
90V_IN
10.02
10.00
9.98
0
0.05
0.10
0.15
OUTPUT CURRENT (A)
FIGURE 6. VR1 REGULATION vs LOAD CURRENT WITH
V_OUT1 = 10V at F_SW1 = 170kHz
2.56
2.55
10V_IN
2.54
14V_IN
2.53
2.52
2.51
6V_IN
2.50
2.49
2.48
0.025
0.075
0.125
0.175
OUTPUT CURRENT (A)
FIGURE 7. VR2 REGULATION vs LOAD CURRENT WITH
V_OUT2 = 2.5V at F_SW2 = 210kHz
0.225
190
50V_IN
180
170
15V_IN
160
90V_IN
150
140
130
120
0
0.05
0.10
0.15
OUTPUT CURRENT (A)
FIGURE 8. VR1 SWITCHING FREQUENCY vs LOAD CURRENT WITH
V_OUT1 = 10V
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FN8259.1
July 24, 2014