ltc3711 Linear Technology Corporation, ltc3711 Datasheet - Page 5

• Manufacturer Part Number: ltc3711
• Description: 5-bit Adjustable, Wide Operating Range, No Rsense? Step-down Controller
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
100
10k
150
125
100
10
1k
75
50
25
0
1
0
On-Time vs I
Current Limit Foldback
V
RNG
= 1V
0.2
150
140
130
120
110
100
I
ON
–50 –25
ON
CURRENT ( A)
Maximum Current Sense
Threshold vs Temperature
V
V
RNG
FB
Current
0.4
10
(V)
= 1V
0
TEMPERATURE ( C)
0.6
W
V
25
VON
= 0V
3711 G11
3711 G14
50
U
100
0.8
75
100
1000
800
400
600
200
300
250
200
150
100
3711 G17
50
0
0
0.5
0
125
On-Time vs V
Maximum Current Sense
Threshold vs V
I
ION
= 30 A
0.75
V
1.0
V
1
RNG
ON
ON
VOLTAGE (V)
VOLTAGE (V)
RNG
1.25
Voltage
Voltage
1.5
2
1.75
3711 G12
3711 G15
0.82
0.81
0.80
0.79
0.78
2.0
3
–50
Feedback Reference Voltage
vs Temperature
–25
300
250
150
100
200
150
125
100
50
75
50
25
0
0
–50
0
TEMPERATURE ( C)
1.5
On-Time vs Temperature
Maximum Current Sense
Threshold vs RUN/SS Voltage
I
V
V
ION
VON
RNG
–25
25
= 30 A
= 0V
= 1V
2
50
0
RUN/SS VOLTAGE (V)
TEMPERATURE ( C)
75
25
2.5
100
LTC3711
50
3711 G18
125
75
3
100
3711 G13
3711 G16
5
3711f
125
3.5