LTM4664 datasheet(17/138 Pages) AD

17 / 138 page

LTM4664A

Rev. 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

VOUTCn (1.5V) Load Transient

VOUTCn (1V) Load Transient

Dual Phase (50A/0.9V)

Load Transient

VOUTCn

50mV/DIV

AC-COUPLED

IOUT

5A/DIV

4664A G14

48V TO 1V SINGLE CHANNEL,

0A TO 12.5A/µs LOAD STEP

COUT = 470µF ×2 POSCAP, 100µF ×5 CER,

COMP_Cna = 2200pF, COMP_Cnb = 100pF,

EA-GM = 3.69ms, RCOMP = 5k,

PSM FREQ = 250kHz, ILIMIT RANGE = LOW

VOUT RANGE = LOW

50µs/DIV

VOUTCn

50mV/DIV

AC-COUPLED

IOUT

5A/DIV

4664A G15

48V TO 1.5V SINGLE CHANNEL, 0A TO 12.5A/µs

LOAD STEP

COUT = 470µF ×1 POSCAP, 330µF ×2 CER,

COMP_C

na = 2200pF, COMP_Cnb = 220pF,

EA-GM = 3.02ms, RCOMP = 6k,

PSM FREQ = 350kHz

50µs/DIV

VOUT

50mV/DIV

AC-COUPLED

IOUT

10A/DIV

4664A G16

48V TO 0.9V DUAL PHASE SINGLE OUTPUT, 0A

TO 25A/µs LOAD STEP

COUT = 470µF ×2 POSCAP, 330µF ×5 CER,

COMP_C0, 1 = 1500pF, COMP_C01b = 100pF,

EA-GM = 4.36ms, RCOMP = 13k,

PSM FREQ = 250kHz, ILIMIT RANGE = LOW

VOUT RANGE = LOW

50µs/DIV

VOUT

50mV/DIV

AC-COUPLED

IOUT

10A/DIV

4664A G17

48V TO 1V DUAL PHASE SINGLE OUTPUT, 0A TO

25A/µs LOAD STEP

COUT = 470µF ×2 POSCAP, 5 × 330µF CER,

COMP_C0,1 = 1500pF, COMP_C01b = 100pF,

EA-GM = 4.36ms, RCOMP = 13k,

PSM FREQ = 350kHz, ILIMIT RANGE = LOW

VOUT RANGE = LOW

50µs/DIV

Dual Phase (50A/1V) Load Transient

25A AC Ripple Noise

VOUTC0

10mV/DIV

AC-COUPLED

VOUTC1

10mV/DIV

AC-COUPLED

SWC0

SWC1

4664A G18

48V TO VOUTC0 = 1V, AND VOUTC1 = 1V

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