ltc3787gn Linear Technology Corporation, ltc3787gn Datasheet - Page 6

• Manufacturer Part Number: ltc3787gn
• Description: Ltc3787 - Polyphase Synchronous Boost Controller
• Manufacturer: Linear Technology Corporation

LTC3787
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
Inductor Current at Light Load
V
V
I
FIGURE 10 CIRCUIT
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
3787 G07
3787 G09
3787 G11
130
130
5V/DIV
11.0
10.5
10.0
V
9.5
9.0
OUT
20
15
10
0V
–45
5
0
Soft Start-Up
Soft-Start Pull-Up Current
vs Temperature
Shutdown Current vs Input Voltage
0
V
V
FIGURE 10 CIRCUIT
IN
OUT
= 12V
–20
5
= 24V
10
5
TEMPERATURE (°C)
INPUT VOLTAGE (V)
15
20ms/DIV
30
20
55
25
80
30
105
35
3787 G08
3787 G10
3787 G12
130
40
3787fa