LTC3788IUHTRPBF 查看數據表（PDF） - Linear Technology

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LTC3788IUHTRPBF

2-Phase, Dual Output Synchronous Boost Controller

Linear Technology 

LTC3788

TYPICAL PERFORMANCE CHARACTERISTICS

Inductor Current at Light Load

Soft Start-Up

FORCED

CONTINUOUS MODE

Burst Mode

OPERATION

5A/DIV

PULSE-SKIPPING

MODE

VIN = 12V

5μs/DIV

VOUT = 24V

ILOAD = 200μA

FIGURE 9 CIRCUIT

3788 G07

Regulated Feedback Voltage

vs Temperature

1.212

1.209

1.206

1.203

1.200

1.197

1.194

1.191

1.188

–45 –20

5 30 55 80

TEMPERATURE (°C)

105 130

3788 G09

6

Shutdown Current vs Temperature

11.0

10.5 VIN = 12V

10.0

9.5

9.0

8.5

8.0

7.5

7.0

6.5

6.0

5.5

5.0

–45 –20

5 30 55 80 105 130

TEMPERATURE (°C)

3788 G11

VOUT

5V/DIV

0V

VIN = 12V

20ms/DIV

VOUT = 24V

FIGURE 9 CIRCUIT

3788 G08

Soft-Start Pull-Up Current

vs Temperature

11.0

10.5

10.0

9.5

9.0

–45 –20

5 30 55 80

TEMPERATURE (°C)

105 130

3788 G10

Shutdown Current

vs Input Voltage

20

15

10

5

0

0 5 10 15 20 25 30 35 40

INPUT VOLTAGE (V)

3788 G12

3788f

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