6
LTC3729
sn3729 3729fas
Load Regulation
V
ITH
vs V
RUN/SS
SENSE Pins Total Source Current
Maximum Current Sense
Threshold vs Temperature
Soft-Start Up (Figure 12)
V
ITH
1V/DIV
V
OUT
2V/DIV
V
RUNSS
2V/DIV
100ms/DIV
3729 G20
Load Step (Figure 12)
I
OUT
O/30A
V
ITH
1V/DIV
10
µ
s/DIV
3729 G21
RUN/SS Current vs Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
U
W
LOAD CURRENT (A)
0
NORMALIZED V
OUT
(%)
–0.2
–0.1
4
3729
G13
–0.3
–0.4
1
2
3
5
0.0
FCB = 0V
V
IN
= 15V
FIGURE 1
V
RUN/SS
(V)
0
0
V
ITH
(V)
0.5
1.0
1.5
2.0
2.5
1
2
3
4
3729
G14
5
6
V
OSENSE
= 0.7V
V
SENSE
COMMON MODE VOLTAGE (V)
0
I
SENSE
(
µ
A)
0
3729
G15
–50
–100
2
4
50
100
6
TEMPERATURE (
°
C)
–50
–25
70
V
SENSE
(mV)
74
80
0
50
75
3729
G17
72
78
76
25
100
125
TEMPERATURE (
°
C)
–50
–25
0
RUN/SS CURRENT (
µ
A)
0.2
0.6
0.8
1.0
75
100
50
1.8
3729
G19
0.4
0
25
125
1.2
1.4
1.6
V
OUT
200mV/DIV
