LTM4677 datasheet(58/110 Pages) AD

58 / 110 page

LTC3888-1

Rev. 0

For more information www.analog.com

At any point that additional output current is required

without the need for additional phase separation, it is

always possible to simply add overlapping phases on

an LTC3888-1 rail. For example, two LTC3888-1s can

be combined to provide two 5-phase rails with a third

6-phase rail with two PWMs driving each phase. In this

case, SYNC would be shared between the ICs (one con-

figured as clock master) and all rails would have phases

with the desired uniform spacing around the unit circle.

Refer to Figure 39.

APPLICATIONS INFORMATION

Figure 38. Simplified Schematic Showing 12 + 2 + 2 Phase Expansion

388812 F38

VDD33

PGOOD1

SYNC

CLKOUT

ITH0

LTC3888-1

12-PHASE CLOCK MASTER

12-PHASE CLOCK SLAVE

NOTE: SOME DETAILS OMITTED FOR CLARITY

VSENSE1±

VSENSE0±

2-PHASE VOUT1

(FOR VOUT1)

(FOR VOUT2)

12-PHASE VOUT2

(FOR VOUT2)

(FOR VOUT3)

2-PHASE VOUT3

PWM1,7

PWM0,2-6

VSENSE0±

VSENSE1±

+PWM0,2-6

PWM1,7

VDD33

ITH0

(FOR VOUT2)

(FOR VOUT1)

(FOR VOUT3)

SYNC

PGOOD0

PGOOD1

LTC3888-1

20k

Figure 39. Simplified Schematic Showing 5+5+6 Application

388812 F39

VDD33

PGOOD0

SYNC

PGOOD1

ITH1

LTC3888-1

CLOCK MASTER

VSENSE0±

VSENSE1±

5-PHASE VOUT1

(FOR VOUT1)

(FOR VOUT2)

(HIGH OUTPUT)

6-PHASE VOUT2

(FOR VOUT2)

(FOR VOUT3)

5-PHASE VOUT3

PWM0,2-5

PWM1,6,7

VSENSE1±

VSENSE0±

+PWM1,6,7

PWM0,2-5

VDD33

ITH1

(FOR VOUT2)

(FOR VOUT1)

(FOR VOUT3)

SYNC

PGOOD1

PGOOD0

LTC3888-1

20k

NOTE: SOME DETAILS OMITTED FOR CLARITY

LTM4677 Datasheet(PDF) 58 Page - Analog Devices

LTM4677 Datasheet(HTML) 58 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL