LTC3708 LINER [Linear Technology], LTC3708 Datasheet - Page 6

• Manufacturer Part Number: LTC3708
• Description: Fast 2-Phase, No RSENSE Buck Controller with Output Tracking
• Manufacturer: LINER [Linear Technology]

LTC3708
TYPICAL PERFORMANCE CHARACTERISTICS
6
350
300
250
200
150
100
700
600
500
400
300
200
100
1.3
1.6
1.5
1.4
1.1
1.0
1.2
50
0
0
–50
0.5
1
Maximum Current Sense
Threshold vs V
Error Amplifi er g
vs Temperature
Feedback Voltage vs RUN/SS
(Soft-Start)
–25
0.75
1.25
0
RUN/SS VOLTAGE (V)
TEMPERATURE (°C)
V
1.5
1
RNG
25
VOLTAGE (V)
RNG
1.25
1.75
50
m
Voltage
75
1.5
2
100
1.75
2.25
125
3708 G13
3708 G16
3708 G19
150
2.5
2
160
150
130
110
110
140
120
150
140
130
120
100
4.0
3.5
3.0
2.5
2.0
90
80
70
50
60
–50
–50
–50
Maximum Current Sense
Threshold vs Temperature
SENSE Pin Input Current
vs Temperature
RUN/SS Latch-Off Thresholds
vs Temperature
V
RNG
LATCHOFF THRESHOLD
–25
–25
–25
= 1V
0
0
0
LATCHOFF ENABLE
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
25
I
I
SENSE
SENSE
50
50
50
–
+
75
75
75
100 125 150
100 125 150
100 125
3708 G17
3708 G20
3708 G14
150
–0.1
–0.2
–0.3
–0.4
–0.6
–0.7
–0.5
4.5
4.0
3.0
2.5
2.0
3.5
–1
–2
1
0
3
2
0
–50
–50 –25
0
Load Regulation
(Figure 13 Circuit)
RUN/SS Pin Current
vs Temperature
Undervoltage Lockout Threshold
vs Temperature
–25
3
0
PULL-DOWN CURRENT
0
TEMPERATURE (°C)
TEMPERATURE (°C)
LOAD CURRENT (A)
PULL-UP CURRENT
CONTINUOUS
25
6
25
FORCED
DISCONTINUOUS
MODE
50
MODE
50
9
75
75
100 125
12
100
3708 G21
3708 G15
3708 G18
3708fb
125
150
15