EL7563 查看數據表（PDF） - Renesas Electronics
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EL7563 Datasheet PDF : 16 Pages
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EL7563
Typical Performance Curves (20 Pin SO Package) (Continued)
NOTE: The 28-Pin HTSSOP Package Offers Improved Performance
60
50
40
NO AIRFLOW
30
100 LFM
20
200 LFM
10
500 LPF
0
0
1
2
3
4
IO (A)
FIGURE 9. EL7563CM JUNCTION TEMPERATURE RISE ON
DEMO BOARD
45
40
35
30
25
20
15
10
5
0
1
1.5
2
2.5
3
3.5
4
IO (A)
FIGURE 10. EL7563CRE JUNCTION TEMPERATURE RISE
ON DEMO BOARD - NO AIR FLOW
360
350
340
IO=4A
330
320
310
IO=0A
300
290
280
-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 11. SWITCHING FREQUENCY vs TEMPERATURE
1000
900
800
700
600
500
400
300
200
100
100 200 300 400 500 600 700 800 900 1000
COSC (pF)
FIGURE 12. SWITCHING FREQUENCY vs COSC
8
7
6
VIN=3.6V
VIN=3.3V
5
VIN=3V
4
3
-40 -20 0 20 40 60 80 100 120
TJ (°C)
FIGURE 13. CURRENT LIMIT vs TJ
1.5
1.3
1.1
0.9
0
25
50
75
100
125
150
JUNCTION TEMPERATURE (°C)
FIGURE 14. VTJ vs JUNCTION TEMPERATURE
FN7296 Rev 2.00
May 13, 2005
Page 7 of 16
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