EL7531 Просмотр технического описания (PDF) - Renesas Electronics
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EL7531 Datasheet PDF : 12 Pages
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EL7531
Performance Curves and Waveforms (Continued)
All waveforms are taken at VIN = 3.3V, VO = 1.8V, IO = 1A with component values shown on page 1 at room ambient temperature, unless otherwise
noted.
0.1%
0.0%
-0.1%
-0.2%
VIN = 3.3V IO = 0A
VIN = 5V IO = 0A
-0.3%
-0.4%
-0.5%
VIN = 3.3V IO = 1A
-0.6%
VIN = 5V IO = 1A
-0.7%
-50
0
50
100
150
TJ (°C)
FIGURE 7. PWM MODE LOAD/LINE REGULATIONS vs
JUNCTION TEMPERATURE
12
10
8
6
4
2
0
2.5
3
3.5
4
4.5
5
VS (V)
FIGURE 8. NO LOAD QUIESCENT CURRENT (PWM MODE)
140
130
VO = 1.8V VO = 3.3V
120
110
100
90
VO = 1.5V
VO = 1.2V
VO = 1.0V
VO = 0.8V
80
70
60
50
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VS (V)
FIGURE 9. NO LOAD QUIESCENT CURRENT (PFM MODE)
100
1.4MHz
80
5MHz
12MHz
60
40
20
0
0
200 400 600 800 1K 1.2K
IO (mA)
FIGURE 10. EFFICIENCY vs IO (PWM MODE)
1
12MHz
0.6
1.4MHz
0.2
5MHz
0
-0.2
-0.6
0
200 400 600 800 1K 1.2K
IO (mA)
FIGURE 11. LOAD REGULATION (PWM MODE)
FN7428 Rev 10.00
December 10, 2015
0.5
0.3
0.1
1.4MHz
-0.1
12MHz
-0.3
5MHz
-0.5
2.5
3
3.5
4
4.5
5
5.5
VIN (V)
FIGURE 12. LINE REGULATION @ 500mA (PWM MODE)
Page 5 of 12
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