LTC3787
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current vs Temperature
180
V
IN
= 12V
V
FB
= 1.25V
170 RUN = GND
QUIESCENT CURRENT (μA)
160
150
140
130
120
110
–60 –35 –10 15 40 65 90 115 140
TEMPERATURE (°C)
3787 G13
Shutdown (RUN) Threshold
vs Temperature
1.40
1.35
RUN PIN VOLTAGE (V)
1.30
1.25
1.20
1.15
1.10
–60 –35 –10 15 40 65 90 115 140
TEMPERATURE (°C)
3787 G14
RUN RISING
RUN FALLING
Undervoltage Lockout Threshold
vs Temperature
4.4
4.3
4.2
INTV
CC
VOLTAGE (V)
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
–60 –35 –10 15 40 65 90 115 140
TEMPERATURE (°C)
3787 G15
INTV
CC
FALLING
INTV
CC
RISING
INTV
CC
VOLTAGE (V)
5.5
5.4
5.3
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
INTV
CC
Line Regulation
0
5
10
15 20 25 30
INPUT VOLTAGE (V)
35
40
3787 G16
INTV
CC
vs INTV
CC
Load Current
5.50
5.45
5.40
INTV
CC
VOLTAGE (V)
5.35
5.30
5.25
5.20
5.15
5.10
5.05
5.00
0
20 40 60 80 100 120 140 160 180 200
INTV
CC
LOAD CURRENT (mA)
3787 G17
EXTV
CC
Switchover and INTV
CC
Voltages vs Temperature
6.0
5.8
EXTV
CC
AND INTV
CC
VOLTAGE (V)
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
–60 –35 –10 15 40 65 90 115 140
TEMPERATURE (°C)
3787 G18
V
IN
= 12V
EXTV
CC
= 0V
INTV
CC
EXTV
CC
RISING
EXTV
CC
= 6V
EXTV
CC
FALLING
3787fc
7
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
