ltc1876eg-trpbf Linear Technology Corporation, ltc1876eg-trpbf Datasheet - Page 6

• Manufacturer Part Number: ltc1876eg-trpbf
• Description: High Efficiency, 2-phase, Dual Synchronous Step-down Switching Controller And Step-up Regulator
• Manufacturer: Linear Technology Corporation

LTC1876
6
TYPICAL PERFOR A CE CHARACTERISTICS
–0.1
–0.2
–0.3
–0.4
0.0
80
60
40
20
80
78
76
74
72
70
0
–50 –25
0
0
Maximum Current Sense
Threshold vs V
Load Regulation (Controller)
Maximum Current Sense
Threshold vs Temperature
V
SENSE(CM)
1
1
0
= 1.6V
TEMPERATURE ( C)
LOAD CURRENT (A)
2
V
2
RUN/SS
25
RUN/SS
3
50
(V)
3
(Soft-Start)
4
75
W
FCB = 0V
V
FIGURE 1
4
IN
100
5
= 15V
1876 G10
1876 G16
1876 G13
U
125
6
5
2.5
2.0
1.5
1.0
0.5
29
25
80
76
68
64
60
35
33
31
27
72
0
–50 –25
0
0
Maximum Current Sense
Threshold vs Sense Common
Mode Voltage
V
Current Sense Pin Input Current
vs Temperature
V
V
ITH
OSENSE
OUT
vs V
1
= 5V
COMMON MODE VOLTAGE (V)
1
= 0.7V
RUN/SS
0
TEMPERATURE ( C)
2
V
2
RUN/SS
25
3
50
(V)
3
4
75
4
100
5
1876 G14
1876 G11
1876 G17
125
6
5
–100
–50
–10
–20
–30
100
1.8
1.6
1.4
1.2
1.0
0.8
0.4
0.6
0.2
90
80
70
60
50
40
50
30
20
10
0
0
0
–50
0
0
Current Sense Threshold
vs I
SENSE Pins Total Source Current
RUN/SS Current vs Temperature
V
–25
TH
SENSE
0.5
Voltage
COMMON MODE VOLTAGE (V)
0
TEMPERATURE ( C)
2
1
25
V
ITH
(V)
50
1.5
4
75
2
100
1876 G18
1876 G15
1876 G12
1876fa
125
2.5
6