ISL8225M
Typical Performance Characteristics(Continued)
Start-up and Short Circuit Performance
V
= 12V, V
= 1.5V, CIN = 1x 180µF, 2x10µF/Ceramic, COUT = 2x47µF and
IN
OUT
1x330µF POSCAP. T = +25°C, if not specified, as shown in Figure 18 with 2nd phase disabled.
A
V
OUT
Vout
V
Vout
OUT
00.5.5VV//DDIIVV
0.5V/DIV
0.5V/DIV
I
Iin
IN
I
IiNn
0.1A/DIV
0.1A/DIV
0.1A/DIV
1A/DIV
1ms/DIV
1ms/DIV
11mmss//DDIIVV
FIGURE 14. START-UP AT 0A
FIGURE 15. START-UP AT 15A
V
Vout
OUT
V
Vout
OUT
00.5.5VV//DDIIVV
0.5V/DIV
0.5V/DIV
I
I
Iin
IN
Iin
IN
0.2A/DIV
0.2A/DIV
0.5A/DIV
0.5A/DIV
10100µ0sus/D/DIIVV
100µs/DIV
100us/DIV
FIGURE 16. SHORT CIRCUIT AT 0A
FIGURE 17. SHORT CIRCUIT AT 15A
FN7822.1
January 31, 2013
11
INTERSIL [ Intersil ]
