LTM8055 datasheet(20/26 Pages) LINER

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LTM8055

8055fb

For more information www.linear.com/LTM8055

3.3VOUT from 9VIN to 24VIN with 5A Accurate Current Limit and

Output Current Monitor

TYPICAL APPLICATIONS

Two LTM8055s Paralleled to Get More Output Current. The Two µModules Are

Synchronized and Switching 180° Out Of Phase

VIN

SVIN

IIN

GND

MODE

LTM8055

IOUT

0.011

VOUT

CLKOUT

IINMON

IOUTMON

RUN

CTL

SYNC

COMP

56.2k

8055 TA04a

22µF

6.3V

100µF

6.3V

VOUT

3.3V

OUTPUT

CURRENT

MONITOR

10µF

50V

VIN

9V TO 24V

36.5k

fSW = 600kHz

100k

OUTPUT CURRENT (A)

4.0

3.0

2.5

2.0

1.0

0.5

1.5

3.5

8055 TA04b

Output Voltage vs Output Current

VIN

SVIN

IIN

GND

MODE

LTM8055

(MASTER)

IOUT

0.008

VOUT

IINMON

IOUTMON

RUN

CTL

SYNC

COMP

CLKOUT

22µF

25V

68µF

25V

VOUT

12V

10µF

50V

47pF

VIN

7V TO 36V

36.5k

VIN

SVIN

IIN

GND

LTM8055

(SLAVE)

IOUT

0.008

VOUT

CTL

CLKOUT

IINMON

IOUTMON

RUN

COMP

SYNC

11k

100k

9.31k

8055 TA05a

10µF

50V

36.5k

fSW = 600kHz

MODE

100k

22µF

25V

68µF

25V

LT1636

IOUTMON Voltage vs Output Current

for Each Channel, 12VIN

COMBINED CURRENTS OF BOTH CHANNELS (A)

1.2

0.8

0.6

0.4

0.2

1.0

8055 TA05b

MASTER

SLAVE

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