LTM4606 datasheet(6/24 Pages) LINER

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LTM4606

4606f

VOUT

0.5V/DIV

IIN

0.5A/DIV

1ms/DIV

4606 G10

VIN = 12V

VOUT = 1.5V

COUT = 1x 22μF, 6.3V CERAMIC

1x 330μF, 4V SANYO POSCAP

SOFT-START = 3.9nF

TYPICAL PERFORMANCE CHARACTERISTICS

Start-Up, IOUT = 6A

(Resistive Load)

Short-Circuit Protection,

IOUT = 0A

Short-Circuit Protection,

IOUT = 6A

VIN to VOUT Step-Down

Operation Region

Input Ripple

Output Ripple

VOUT

2V/DIV

IIN

0.2A/DIV

50μs/DIV

4606 G11

VIN = 12V

VOUT = 2.5V

COUT = 2x 22μF, 10V CERAMIC

1x 100μF, 6.3V CERAMIC

SOFT-START = 0.1μF

VOUT

1V/DIV

IIN

2A/DIV

50μs/DIV

4606 G12

VIN = 12V

VOUT = 2.5V

COUT = 2x 22μF, 10V CERAMIC

1x 100μF, 6.3V CERAMIC

SOFT-START = 0.1μF

VIN

10mV/DIV

2μs/DIV

4606 G14

VIN = 5V

VOUT = 1V AT 6A

CIN = 3x 10μF, 25V CERAMIC

1x 150μF BULK

BW = 300MHz

VOUT

2mV/DIV

2μs/DIV

4606 G15

VIN = 5V

VOUT = 1V AT 6A

COUT = 2x 22μF, 6.3V CERAMIC

1x 100μF, 6.3V CERAMIC

BW = 300MHz

VOUT (V)

0.6

4.5

2.5

4.5

1.5

3.5

4606 G13

5.0

2.0

4.0

1.0

3.0

SEE FREQUENCY ADJUSTMENT SECTION

FOR OPERATIONS OUTSIDE THIS REGION

OPERATION REGION

WITH DEFAULT FREQUENCY

Start-Up, IOUT = 0A

VOUT

0.5V/DIV

IIN

0.5A/DIV

1ms/DIV

4606 G09

VIN = 12V

VOUT = 1.5V

COUT = 1x 22μF, 6.3V CERAMIC

1x 330μF, 4V SANYO POSCAP

SOFT-START = 3.9nF

–55°C, Start-Up, IOUT = 6A

VOUT

0.5V/DIV

IIN

0.5A/DIV

1ms/DIV

4606 G17

VIN = 12V

VOUT = 1.5V

COUT = 2x 22μF, 10V CERAMIC

1x 100μF, 6.3V CERAMIC

SOFT-START = 3.9nF

VFB vs Temperature

TEMPERATURE (°C)

–55

0.594

0.596

0.598

–25

4606 G18

0.606

0.604

0.602

0.600

125

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