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EL7584 Datasheet(PDF) 7 Page - Renesas Technology Corp

Part # EL7584
Description  4-Channel DC/DC Converter
PDF  16 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

EL7584 Datasheet(HTML) 7 Page - Renesas Technology Corp

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EL7584
FN7317 Rev 2.00
Page 7 of 16
February 4, 2005
FIGURE 13. FS vs ROSC
FIGURE 14. FS vs ROSC
FIGURE 15. POWER-DOWN
FIGURE 16. POWER-UP
FIGURE 17. LX WAVEFORM - DISCONTINUOUS MODE
FIGURE 18. LX WAVEFORM - CONTINUOUS MODE
Typical Performance Curves (Continued)
f(MHz)=1/(0.0118 ROSC+0.378)
1400
1000
800
400
0
0
50
100
200
450
ROSC (k)
150
300
600
200
400
1200
250
350
SWITCHING PERIOD(µs)=0.0118 ROSC+0.378)
6
4
3
1
0
0
50
100
200
450
ROSC (k)
150
300
2
400
5
250
350
100K & 0.1µF DELAY NETWORK ON ENP, CSS=0.1µF
VBOOST
VON
VOFF
5V/DIV
2V/DIV
10V/DIV
200ms/DIV
100K & 0.1µF DELAY NETWORK ON ENP, CSS=0.1µF
VBOOST
VON
VOFF
5V/DIV
2V/DIV
10V/DIV
1ms/DIV
1ms/DIV
VIN=3.3V, VOUT=11.3V, IOUT=50mA
VIN=3.3V, VOUT=11.3V, IOUT=250mA



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