Datasheet

LTC3787
6
3787fc
TYPICAL PERFORMANCE CHARACTERISTICS
Inductor Current at Light Load Soft Start-Up
Regulated Feedback Voltage
vs Temperature
PULSE-SKIPPING
MODE
Burst Mode
OPERATION
5A/DIV
FORCED
CONTINUOUS MODE
V
IN
= 12V
V
OUT
= 24V
I
LOAD
= 200µA
FIGURE 10 CIRCUIT
5µs/DIV
3787 G07
0V
V
OUT
5V/DIV
V
IN
= 12V
V
OUT
= 24V
FIGURE 10 CIRCUIT
20ms/DIV
3787 G08
Shutdown Current vs Temperature
Soft-Start Pull-Up Current
vs Temperature
Shutdown Current vs Input Voltage
015
510 2025 30 35 40
INPUT VOLTAGE (V)
SHUTDOWN CURRENT (µA)
10
20
5
0
15
3787 G12
TEMPERATURE (°C)
–60
REGULATED FEEDBACK VOLTAGE (V)
1.209
15
3787 G09
1.200
1.194
–35 –10 40
1.191
1.188
1.212
1.206
1.203
1.197
65 90 140115
TEMPERATURE (°C)
SOFT-START CURRENT (µA)
10.5
3787 G10
9.0
11.0
10.0
9.5
–60 15
–35 –10 40
65 90 140115
TEMPERATURE (°C)
SHUTDOWN CURRENT (µA)
7.0
9.5
10.0
10.5
11.0
6.0
8.5
6.5
9.0
5.5
5.0
8.0
7.5
3787 G11
–60 15
–35 –10 40 65 90 140115
V
IN
= 12V