EL7564 データシートの表示（PDF） - Renesas Electronics
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EL7564 Datasheet PDF : 17 Pages
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EL7564
Typical Performance Curves (Continued)
360
350
340
IO=4A
330
320
310
IO=0A
300
290
280
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 9. OSCILLATOR FREQUENCY vs TEMPERATURE
8
7
6
VIN=5.5V
VIN=5V
5
VIN=4.5V
4
3
-40 -20 0 20 40 60 80 100 120
TJ (°C)
FIGURE 11. CURRENT LIMIT vs TJ
1.27
1.268
1.266
1.264
1.262
1.26
1.258
1.256
-50
-10
30
70
110
150
DIE TEMPERATURE (°C)
FIGURE 13. VREF vs DIE TEMPERATURE
FN7297 Rev 3.00
May 9, 2005
1000
900
800
700
600
500
400
300
200
100
100 200 300 400 500 600 700 800 900 1000
COSC (pF)
FIGURE 10. SWITCHING FREQUENCY vs COSC
1.5
1.3
1.1
0.9
0
25
50
75
100 125 150
JUNCTION TEMPERATURE (°C)
FIGURE 12. VTJ vs JUNCTION TEMPERATURE
VIN=5V, VO=3.3V, IO=4A
VIN
VLX
iL
VO
FIGURE 14. SWITCHING WAVEFORMS
Page 7 of 17
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