LTC3731H Linear Technology, LTC3731H Datasheet - Page 6

• Manufacturer Part Number: LTC3731H
• Description: Synchronous Buck Switching Regulator Controller
• Manufacturer: Linear Technology

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LTC3731H
TYPICAL PERFOR A CE CHARACTERISTICS
6
80
70
60
50
40
30
20
10
80
70
60
50
40
30
20
10
4
3
2
0
0
0
5
1
–50
PERCENTAGE OF NOMINAL OUTPUT VOLTAGE (%)
0
0
Maximum I
Percentage of Nominal Output vs
Peak I
Short-Circuit Arming and Latchoff
vs Temperature
ARMING
LATCHOFF
10
–25
1
20
SENSE
0
V
30
TEMPERATURE (°C)
RUN/SS
2
SENSE
25
(Foldback)
40
VOLTAGE (V)
50
50
3
vs V
60
75
RUN/SS
4
70
100
W
80
5
125
3731H G10
3731H G13
3731H G16
90
U
100
150
6
2.4
1.2
0.8
2.8
2.0
1.6
0.4
0
–50
100
98
96
94
90
75
50
25
92
Supply Current vs Temperature
0
–50
V
CC
0
Maximum Current Sense
Threshold vs Duty Factor
–25
Maximum Duty Factor vs
Temperature
= 5V
–25
0
20
TEMPERATURE (°C)
0
TEMPERATURE (°C)
25
DUTY FACTOR (%)
25
40
50
50
75
60
75
100
V
PLLFLTR
100
3731H G11
125
80
125
3731H G17
3731H G14
= 0V
150
100
80
60
40
20
0
100
150
–15
–10
–20
–30
2.0
1.5
1.0
3.0
2.5
0.5
40
30
20
10
75
60
45
30
15
0
0
0
–50
0
0
RUN/SS Pull-Up Current vs
Temperature
Peak Current Threshold vs V
I
V
SENSE
RUN/SS
–25
1
Pin Current vs V
= 1.9V
0.6
0
TEMPERATURE (°C)
25
2
V
V
OUT
ITH
1.2
50
(V)
(V)
3
75
OUT
100
1.8
4
3731H G12
ITH
125
3731H G15
3731H G18
3731hf
150
2.4
5