TC2575 Datasheet, PDF (24/25 Pages) TelCom Semiconductor, Inc – 1.0A Step-Down Switching Regulator

1.0A Step-Down Switching Regulator
TC2575
TYPICAL CHARACTERISTICS (Circuit of Figure 2 Cont.)
60
H1000
20
Figure 32. TC2575 (VOUT = 3.3V)
15
L680
10
L470
8.0
L330
7.0
L220
6.0
L150
L100
5.0
0.2
0.3
0.4 0.5 0.6
0.8 1.0
IL, MAXIMUM LOAD CURRENT (A)
Figure 33.TC2575 (VOUT = 5.0V)
60
40 H1500
25
20
H1000
L680
15
12
L470
10
L330
9.0
L220
8.0
L150
7.0
0.2
0.3
0.4 0.5 0.6 0.7 0.8 0.9 1.0
IL, MAXIMUM LOAD CURRENT (A)
Figure 34. TC2575 (VOUT = 12.0V)
60
40
H2200
30
25
20
H1500
H1000
H680
H470
18
17
L680
16
L470
L330
15
L220
14
0.2
0.3
0.4 0.5 0.6 0.7 0.8 0.9 1.0
IL, MAXIMUM LOAD CURRENT (A)
200
150
125
100
80
70
60
50
40
30
20
0.2
Figure 35. TC2575-Adj
H2200
H1500
H1000
H680
H470
L680
L470
L330
L220
L150
L100
0.3
0.4 0.5 0.6 0.7 0.8 0.9 1.
IL, MAXIMUM LOAD CURRENT (A)
Note: This inductor Value Selection Guide is applicable for continuous mod
TC2575-1 3/13/00
24