ISL8502 データシートの表示（PDF） - Renesas Electronics
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ISL8502 Datasheet PDF : 19 Pages
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ISL8502
Typical Performance Curves
VIN = 12V, VOUT = 2.5V, IO = 2A, fs = 500kHz, L = 4.7µH, CIN = 20µF, COUT = 100µF + 22µF,
TA = +25° C, unless otherwise noted. (Continued)
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5 0
50
100
150
200
250 300
I VCC (mA)
FIGURE 19. VCC LOAD REGULATION
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
3
NO LOAD
100mA LOAD
4 5 6 7 8 9 10 11 12 13
VIN (V)
FIGURE 20. VCC REGULATION vs VIN
14 15
0P.H5AµsSE1
5V/DIV
PHASE2
5V/DIV
VOUT1 RIPPLE
20mV/DIV
VOUT2 RIPPLE
20mV/DIV
FIGURE 21. MASTER TO SLAVE OPERATION
PHASE1
5V/DIV
IL1
0.5A/DIV
VOUT1 RIPPLE
20mV/DIV
SYNCH1
2V/DIV
FIGURE 22. MASTER OPERATION AT NO LOAD
PHASE1
5V/DIV
VOUT1 RIPPLE
20mV/DIV
IL1
1A/DIV
SYNCH1
5V/DIV
FIGURE 23. MASTER OPERATION WITH FULL LOAD
PHASE1
10V/DIV
IL1
1A/DIV
VOUT1 RIPPLE
20mV/DIV
SYNCH1
5V/DIV
FIGURE 24. MASTER OPERATION WITH NEGATIVE LOAD
FN6389 Rev 2.00
June 29, 2010
Page 10 of 19
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