LTC3733-1 데이터 시트보기 (PDF) - Linear Technology

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LTC3733-1

3-Phase, Buck Controllers for AMD CPUs

Linear Technology 

TYPICAL PERFOR A CE CHARACTERISTICS

LTC3733/LTC3733-1

Maximum Current Threshold

Mismatch vs Temperature

3.0

2.5

2.0

1.5

1.0

Shed Mode at 1Amp,

Light Load Current

VOUT

AC, 20mV/DIV

VSW1

10V/DIV

VSW2

10V/DIV

VSW3

10V/DIV

0.5

0

–45 –30 –15 0 15 30 45 60 75 90

TEMPERATURE (°C)

3733 G19

4µs/DIV

VIN = 12V

VOUT = 1.5V

VFCB = VCC

FREQUENCY = 210kHz

Burst Mode at 1Amp,

Light Load Current

VOUT

AC, 20mV/DIV

VSW1

10V/DIV

VSW2

10V/DIV

3733 G20

VSW3

10V/DIV

20µs/DIV

VIN = 12V

VOUT = 1.5V

VFCB = OPEN

FREQUENCY = 210kHz

Continuous Mode at 1Amp,

Light Load Current

Transient Load Current

Response: 0Amp to 50Amp

VOUT

AC, 20mV/DIV

VSW1

5V/DIV

VSW2

5V/DIV

VSW3

5V/DIV

4µs/DIV

VIN = 12V

VOUT = 1.5V

VFCB = 0V

FREQUENCY = 210kHz

3733 G22

VOUT

AC, 50mV/DIV

IL

20A/DIV

20µs/DIV

VIN = 12V

VOUT = 1.5V

VFCB = 0V

FREQUENCY = 210kHz

3733 G23

3733 G21

3733f

7

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