Datasheet

LTC3707
5
3707fb
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Input Voltage
and Mode (Figure 13) EXTV
CC
Voltage Drop
INTV
CC
and EXTV
CC
Switch
Voltage vs Temperature
Internal 5V LDO Line Reg
Maximum Current Sense
Threshold vs Duty Factor
Maximum Current Sense
Threshold vs Percent of Nominal
Output Voltage (Foldback)
Maximum Current Sense
Threshold vs V
RUN/SS
(Soft-Start)
Maximum Current Sense Threshold
vs Sense Common Mode Voltage
Current Sense Threshold
vs I
TH
Voltage
INPUT VOLTAGE (V)
05
0
SUPPLY CURRENT (µA)
400
1000
10
20
25
3707 G04
200
800
600
15
30
BOTH
CONTROLLERS ON
STANDBY
SHUTDOWN
CURRENT (mA)
0
EXTV
CC
VOLTAGE DROP (mV)
200
150
100
50
0
40
3707 G05
10
20
30
TEMPERATURE (°C)
–50
INTV
CC
AND EXTV
CC
SWITCH VOLTAGE (V)
4.95
5.00
5.05
25 75
3707 G06
4.90
4.85
–25 0
50 100 125
4.80
4.70
4.75
INTV
CC
VOLTAGE
EXTV
CC
SWITCHOVER THRESHOLD
INPUT VOLTAGE (V)
0
4.8
4.9
5.1
15 25
3707 G07
4.7
4.6
510
20 30
4.5
4.4
5.0
INTV
CC
VOLTAGE (V)
I
LOAD
= 1mA
DUTY FACTOR (%)
0
0
V
SENSE
(mV)
25
50
75
20 40 60 80
3707 G08
100
PERCENT ON NOMINAL OUTPUT VOLTAGE (%)
0
V
SENSE
(mV)
40
50
60
100
3707 G09
30
20
0
25
50
75
10
80
70
V
RUN/SS
(V)
0
0
V
SENSE
(mV)
20
40
60
80
1234
3707 G10
56
V
SENSE(CM)
= 1.6V
COMMON MODE VOLTAGE (V)
0
V
SENSE
(mV)
72
76
80
4
3707 G11
68
64
60
1
2
3
5
V
ITH
(V)
0
V
SENSE
(mV)
30
50
70
90
2
3707 G12
10
–10
20
40
60
80
0
–20
–30
0.5
1
1.5
2.5