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ISL62383(2008) データシートの表示(PDF) - Intersil

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ISL62383 Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ISL62381, ISL62382, ISL62383
Pin Descriptions (Continued)
PIN NUMBER
28 LD 32 LD NAME
FUNCTION
28
32
FB2 SMPS2 feedback input used for output voltage programming and regulation.
Bottom Bottom
Pad
Pad
GND Analog ground of the IC. Unless otherwise stated, signals are reference to this GND.
Typical Performance
100
VIN = 7V
95
90
85
VIN = 12V
80
75
VIN = 19V
70
65
60
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5
IOUT (A)
FIGURE 5. CHANNEL 1 EFFICIENCY AT VO = 3.3V
100
95
90
85
VIN = 12V
VIN = 7V
80
VIN = 19V
75
70
65
60
0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5
IOUT (A)
FIGURE 6. CHANNEL 2 EFFICIENCY AT VO = 5V
VO1
FB1
PGOOD1
PHASE1
FIGURE 7. POWER-ON, VIN = 12V, LOAD = 5A, VO = 3.3V
VO1
FB1
PGOOD1
PHASE1
FIGURE 8. POWER-OFF, VIN = 12V, IO = 5A, VO = 3.3V
9
FN6665.4
August 7, 2008

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