ltc3729euh-trpbf Linear Technology Corporation, ltc3729euh-trpbf Datasheet - Page 6

• Manufacturer Part Number: ltc3729euh-trpbf
• Description: 550khz, Polyphase, High Efficiency, Synchronous Step-down Switching Regulator
• Manufacturer: Linear Technology Corporation

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