LTM4643 datasheet(6/24 Pages) AD

6 / 24 page

LTM4710-1

Rev. 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Steady State VSW with

Persistence On

Steady State Voltage Ripple

Load Transient Response

Start-Up

TA = 25°C, unless otherwise noted.

200ns/DIV

47101 G19

VSW1

2V/DIV

VIN = 3.3V, VOUT = 0.6V, IOUT = 30A,

fSW = 1.5MHz, COUT = 100 F × 4

VSW2

2V/DIV

VSW3

2V/DIV

VSW4

2V/DIV

1 s/DIV

47101 G20

VIN = 3.3V, VOUT = 0.6V, IOUT = 30A,

fSW = 1.5MHz, COUT = 100 F × 4

VOUT

AC-COUPLED

10mV/DIV

100 s/DIV

47101 G21

VIN = 3.3V, VOUT = 0.6V, fSW = 1.5MHz,

COUT = 100 F × 4, CFF = 20pF,

0A ~ 7.5A (25%) LOAD STEP, 4-PHASE

IOUT

5A/DIV

VOUT

AC-COUPLED

50mV/DIV

10ms/DIV

47101 G22

VRUN

2V/DIV

VIN = 3.3V, VOUT = 0.6V,

fSW = 1.5MHz, COUT = 100 F × 4

VPG

2V/DIV

VOUT

500mV/DIV

VSSTT

1V/DIV

Load Regulation, 1V

DC3164A-B Demo Board

Radiated Emissions

8A Load on Each Channel

DC3164A-B, without Ferrite Bead

LOAD CURRENT (A)

–0.5

–0.4

–0.3

–0.2

–0.1

0.0

0.1

0.2

0.3

0.4

0.5

47101 G23

VIN = 3.3V

VOUT = 1V

fSW = 1.4MHz

4-CHANNEL PARALLELED

CISPR32 CLASS B 10m

FREQUENCY (MHz)

100

1000

–20

–12

–4

47101 G24

VIN = 3.3V

VOUT1 = 0.8V, VOUT2 = 1V,

VOUT3 = 1.2V, VOUT4 = 1.5V

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