LTC3675 데이터 시트보기 (PDF) - Linear Technology

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LTC3675

7-Channel Confi gurable High Power PMIC

Linear Technology 

TYPICAL PERFORMANCE CHARACTERISTICS

LTC3675

Boost Regulator, Line Regulation

5.020

PWM MODE

5.016

5.012

5.008

5.004

LOAD = 500mA

5.000

4.996

LOAD = 100mA

4.992

4.988

4.984

4.980

2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5

VIN (V)

3675 G28

Boost Regulator Transient

Response (Burst Mode Operation)

VOUT5

100mV/DIV

AC-COUPLED

INDUCTOR

CURRENT

500mA/DIV

0mA

50μs/DIV

LOAD STEP = 100mA to 600mA

VIN = 3.6V, VOUT5 = 5V

3675 G30

Boost Regulator Transient

Response (PWM Mode)

VOUT5

100mV/DIV

AC-COUPLED

INDUCTOR

CURRENT

200mA/DIV

200μs/DIV

LOAD STEP = 100mA to 600mA

VIN = 3.6V, VOUT5 = 5V

3675 G29

Boost Regulator, No Load

Start-Up Transient, PWM Mode

VIN = 3.6V

VOUT5

2V/DIV

INDUCTOR

CURRENT

500mA/DIV

50μs/DIV

3675 G31

Boost Regulator,

VOUT5 vs Temperature

5.10

PWM MODE, LOAD = 500mA

5.08

5.06

5.04

VIN = 3.6V

5.02

5.00

4.98

4.96

VIN = 4.2V

4.94

VIN = 2.7V

4.92

4.90

–55 –35 –15 5 25 45 65 85 105 125

TEMPERATURE (°C)

3675 G32

Boost Regulator, Forward Current

Limit vs Temperature

3.50

3.45

3.40

3.35

3.30

3.25

VIN = 3.6V

3.20

3.15

VIN = 4.2V

3.10

VIN = 2.7V

3.05

3.00

2.95

2.90

2.85

2.80

–55 –35 –15 5 25 45 65 85 105 125

TEMPERATURE (°C)

3675 G33

3675f

11

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