LTC3787HUFD-PBF 查看數據表（PDF） - Linear Technology

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LTC3787HUFD-PBF

PolyPhase Synchronous Boost Controller

Linear Technology 

LTC3787

TYPICAL PERFORMANCE CHARACTERISTICS

Inductor Current at Light Load

FORCED

CONTINUOUS MODE

Burst Mode

OPERATION

5A/DIV

PULSE-SKIPPING

MODE

VIN = 12V

5μs/DIV

VOUT = 24V

ILOAD = 200μA

FIGURE 10 CIRCUIT

3787 G07

Regulated Feedback Voltage

vs Temperature

1.212

1.209

1.206

1.203

1.200

1.197

1.194

1.191

1.188

–60 –35 –10 15 40 65 90

TEMPERATURE (°C)

115 140

3787 G09

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

–60 –35 –10 15 40 65 90 115 140

TEMPERATURE (°C)

3787 G11

6

Soft Start-Up

VOUT

5V/DIV

0V

VIN = 12V

20ms/DIV

VOUT = 24V

FIGURE 10 CIRCUIT

3787 G08

Soft-Start Pull-Up Current

vs Temperature

11.0

10.5

10.0

9.5

9.0

–60 –35 –10 15 40 65 90

TEMPERATURE (°C)

115 140

3787 G10

Shutdown Current vs Input Voltage

20

15

10

5

0

0 5 10 15 20 25 30 35 40

INPUT VOLTAGE (V)

3787 G12

3787fc

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