LTM4643 datasheet(8/24 Pages) AD

8 / 24 page

LTM4710-1

Rev. 0

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BLOCK DIAGRAM

68pF

100µF

VOUT3

1.2V, 8A

22µF

VIN3

2.5V TO 5.5V

10kΩ

7.15kΩ

68pF

100µF

VOUT4

1.5V, 8A

22µF

VIN4

2.5V TO 5.5V

10kΩ

5kΩ

68pF

100µF

VOUT2

1V, 8A

22µF

VIN2

2.5V TO 5.5V

68pF

100µF

VOUT1

0.5V, 8A

VIN

0.1 F

VIN

0.1 F

VIN

0.1 F

0.1µF

70nH

1µF × 2

1MΩ

10kΩ

4.02kΩ

3.3nF

10nF

0.1µF

70nH

1µF × 2

1MΩ

4.02kΩ

3.3nF

0.1µF

70nH

1µF × 2

1MΩ

4.02kΩ

3.3nF

0.1µF

70nH

1µF × 2

1MΩ

4.02kΩ

3.3nF

VIN1

VOUT1

FB1

CURRENT MODE

CONTROLLER

SSTT1

RUN1

RT1

MODE1

COMP1b

COMP1a

PG1

SW1

GND

VOSNS1

AGND1

VIN2

VOUT2

FB2

CURRENT MODE

CONTROLLER

SSTT2

RUN2

RT2

MODE2

COMP2b

COMP2a

PG2

SW2

GND

AGND2

VIN3

VOUT3

FB3

CURRENT MODE

CONTROLLER

SSTT3

RUN3

RT3

MODE3

COMP3b

COMP3a

PG3

SW3

GND

AGND3

VIN4

VOUT4

FB4

CURRENT MODE

CONTROLLER

SSTT4

RUN4

RT4

MODE4

COMP4b

COMP4a

PG4

SW4

GND

AGND4

22µF

47101 BD

1.13MΩ

0.1 F

VIN1

2.5V TO 5.5V

10kΩ

DECOUPLING REQUIREMENTS

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

CIN

External Input Capacitor Requirement (VIN = 2.5V to 5.5V, VOUT = 0.5V)

IOUT = 8A

µF

COUT

External Output Capacitor Requirement (VIN = 2.5V to 5.5V, VOUT = 0.5V)

IOUT = 8A

100

µF

(Per Channel)

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