LTC3788-1 Linear Technology, LTC3788-1 Datasheet - Page 6
LTC3788-1
Manufacturer Part Number
LTC3788-1
Description
Dual Output Synchronous Boost Controller
Manufacturer
Linear Technology
Datasheet
1.LTC3788-1.pdf
(28 pages)
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LTC3788-1
TYPICAL PERFORMANCE CHARACTERISTICS
6
CONTINUOUS MODE
PULSE-SKIPPING
OPERATION
Burst Mode
FORCED
5A/DIV
MODE
1.212
1.209
1.206
1.203
1.200
1.197
1.194
1.191
1.188
11.0
10.5
10.0
7.5
9.5
9.0
8.5
8.0
7.0
6.5
6.0
5.5
5.0
–45
–45
V
V
I
FIGURE 9 CIRCUIT
Inductor Current at Light Load
Regulated Feedback Voltage
vs Temperature
Shutdown Current vs Temperature
LOAD
V
IN
OUT
IN
= 12V
–20
–20
= 12V
= 24V
= 200μA
5
5
TEMPERATURE (°C)
TEMPERATURE (°C)
30
30
5μs/DIV
55
55
80
80
105
105
37881 G07
37881 G11
37881 G09
130
130
5V/DIV
V
11.0
10.5
10.0
OUT
9.5
9.0
20
15
10
0V
5
0
–45
0
Soft Start-Up
V
V
FIGURE 9 CIRCUIT
Soft-Start Pull-Up Current
vs Temperature
Shutdown Current
vs Input Voltage
IN
OUT
= 12V
–20
= 24V
5
10
5
INPUT VOLTAGE (V)
TEMPERATURE (°C)
15
20ms/DIV
30
20
55
25
80
30
105
35
37881 G08
37881 G10
37881 G12
130
40
37881f
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