LTC1709-9 Linear Technology, LTC1709-9 Datasheet - Page 6

• Manufacturer Part Number: LTC1709-9
• Description: 2-Phase/ 5-Bit VID/ Current Mode/ High Efficiency/ Synchronous Step-Down Switching Regulators
• Manufacturer: Linear Technology

LTC1709-8/LTC1709-9
TYPICAL PERFOR A CE CHARACTERISTICS
6
–0.2
–0.3
–0.4
–0.1
0.0
0
Load Regulation
1
LOAD CURRENT (A)
V
1V/DIV
2V/DIV
2V/DIV
RUN/SS
V
V
2
OUT
ITH
76
80
78
74
72
70
–50 –25
Soft-Start (Figure 12)
Maximum Current Sense
Threshold vs Temperature
3
W
FCB = 0V
V
FIGURE 1
IN
4
0
TEMPERATURE ( C)
= 15V
1629 G13
100ms/DIV
25
U
5
50
75
2.5
2.0
1.5
1.0
0.5
0
100
0
V
170989 G16
170989 G18
V
ITH
OSENSE
125
vs V
1
= 0.7V
RUN/SS
2
V
RUN/SS
3
(V)
50mV/DIV
4
0/20A
V
I
OUT
OUT
1.2
1.0
0.8
0.4
1.8
1.6
1.4
0.6
0.2
0
5
–50
Load Step (Figure 12)
RUN/SS Current vs Temperature
1629 G14
–25
6
0
TEMPERATURE ( C)
–100
–50
100
25
20 s/DIV
50
0
0
SENSE Pins Total Source Current
50
V
SENSE
75
COMMON MODE VOLTAGE (V)
2
100
170989 G17
170989 G19
125
4
1629 G15
6