LTC3544BEUD-TRPBF 데이터 시트보기 (PDF) - Linear Technology

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LTC3544BEUD-TRPBF

Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA

Linear Technology 

Typical Performance Characteristics

LTC3544B

Start-Up Curves, All Channels

VOUT100

VOUT200A

VOUT200B

VOUT300

RUNx

Load Step Response, 300mA

Channel

VOUT300

100mV/DIV

AC-COUPLED

IL

250mA/DIV

ILOAD

250mA/DIV

Load Step Response, 200mA

Channel A

VOUT200A

50mV/DIV

AC-COUPLED

IL

250mA/DIV

ILOAD

100mA/DIV

VIN = 3.6V

200µs/DIV

TA = 25°C

ALL CHANNELS UNLOADED

3544B G10

VIN = 3.6V

20µs/DIV

VOUT = 1.8V

TA = 25°C

ILOAD = 300µA TO 300mA

3544B G11

VIN = 3.6V

20µs/DIV

VOUT = 0.8V

TA = 25°C

ILOAD = 340µA TO 200mA

3544B G12

Load Step Response, 200mA

Channel B

VOUT200B

50mV/DIV

AC-COUPLED

IL

250mA/DIV

ILOAD

100mA/DIV

Load Step Response, 100mA

Channel

VOUT100

50mV/DIV

AC-COUPLED

IL

100mA/DIV

ILOAD

100mA/DIV

Load Step Crosstalk

VOUT100

10mV/DIV

VOUT200A

10mV/DIV

VOUT200B

10mV/DIV

VOUT300

100mV/DIV

VIN = 3.6V

20µs/DIV

VOUT = 1.5V

TA = 25°C

ILOAD = 340µA TO 200mA

3544B G13

VIN = 3.6V

20µs/DIV

VOUT = 1.2V

TA = 25°C

ILOAD = 200µA TO 100mA

3544B G14

VIN = 3.6V

40µs/DIV

3544B G15

TA = 25°C

300mA LOAD STEP ON VOUT300

OTHER CHANNELS LOADED 50% OF MAXIMUM

3544bfb



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