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10

dc1989aaf

DEMO MANUAL DC1989A-A

schematic Diagram

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

1210

0.035 VIA TESTPOINTS

1210

35V

4.5V - 16V

1210

1210

1210

6.3V

1210

1210

0805

ON

OFF

RUN0

NOTE: UNLESS OTHERWISE SPECIFIED

1.  ALL RESISTORS ARE 0603.

     ALL CAPACITORS ARE 0603.

1210

6.3V

1210

1210

6.3V

 µModule REGULATOR WITH DIGITAL POWER MANAGEMENT

0805

*

WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R5,R34.

*

1V / 50A

ALERTB

SCL

SDA

RUN0

SYNC

SHARE_CLK

GPIO0B

VIN

VOUT0

VIN

VOUT0

SHARE_CLK

ALERTB

COMP0

COMP0

SCL

SDA

VOSNS0-

GPIO0B

RUN0

SYNC

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

JIAN L.

PROUCTION

2

12-10-12

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

JIAN L.

PROUCTION

2

12-10-12

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

JIAN L.

PROUCTION

2

12-10-12

__

SIZE

DATE:

IC NO.

REV.

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY.  CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Tuesday, May 28, 2013

16

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

HZ

JIAN L.

B

LTM4676EY

DEMO CIRCUIT 1989A-A

SIZE

DATE:

IC NO.

REV.

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY.  CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Tuesday, May 28, 2013

16

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

HZ

JIAN L.

B

LTM4676EY

DEMO CIRCUIT 1989A-A

SIZE

DATE:

IC NO.

REV.

SHEET

OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035 Phone: (408)432-1900

1630 McCarthy Blvd.

LTC Confidential-For Customer Use Only

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION.  COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY.  CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

2

Tuesday, May 28, 2013

16

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

HZ

JIAN L.

B

LTM4676EY

DEMO CIRCUIT 1989A-A

+

COUT4 330uF

+

COUT4 330uF

R5

OPT

R5

OPT

C3

220pF

C3

220pF

R25

0

R25

0

R21

(OPT)

R21

(OPT)

R8 10K

R8 10K

E7

VDD25

E7

VDD25

R3 OPT

R3 OPT

R4

0

R4

0

COUT2 OPT

COUT2 OPT

R22

(OPT)

R22

(OPT)

CIN4 10uF

CIN4 10uF

R2 0

R2 0

CIN6 10uF

CIN6 10uF

COUT10

OPT

COUT10

OPT

R26

0

R26

0

R12 10K

R12 10K

R16 10

R16 10

R1

OPT

R1

OPT

P1P1

U1

LTM4676EY

U1

LTM4676EY

VOUT0

A1

VOUT0

A2

VOUT0

A3

VOUT0

D1

ISNS0b-

E1

F1

ISN

S1b-

G1

ISN

S1b+

H1

VOU

T1

J1

VOU

T1

J2

VOU

T1

J3

VOU

T1

K1

VOUT0

B1

VOUT0

B2

VOUT0

B3

VOUT0

D2

ISNS0a-

E2

F2

ISN

S1a-

G2

ISN

S1a+

H2

VOU

T1

K2

VOU

T1

K3

VOU

T1

L1

VOU

T1

L2

VOUT0

C1

VOUT0

C2

VOUT0

C3

VOUT0

D3

GND

A4

GND

A6

GND

A7

GND

A8

VOU

T1

L3

VOU

T1

M1

VOU

T1

M2

VOU

T1

M3

GND

A9

GND

A10

GND

B4

GND

B5

ASEL

G4

FSWPHCFG

H4

GND

B6

GND

B7

GND

B8

GND

B9

GPIO0

E4

GPIO1

F4

SNUB0

A5

GND

C4

TSNS0b

C5

TSNS0a

D5

ALERT

E5

RUN0

F5

VOUT0CFG

G5

VTRIM0CFG

H5

TSN

S1a

J5

TSN

S1b

K5

GND

C6

SNU

B1

M5

GND

C7

GND

C8

GND

C9

SDA

D6

SCL

E6

RUN1

F6

VOUT1CFG

G6

VTRIM1CFG

H6

VDD25

J6

WP

K6

GND

D4

GND

E3

GND

F3

GND

F10

GND

G3

GND

G10

SYNC

E7

GND

M9

GND

M10

SHARE_CLK

H7

VDD33

J7

GND

G11

GND

G12

GND

L8

GND

L7

GND

L9

GND

H3

COMP0b

D8

COMP0a

E8

SGN

D

F7

SGN

D

F8

COMP

1a

H8

COMP

1b

J8

GND

H10

GND

J4

GND

M8

D9

VOSNS0-

E9

INTVCC

F9

INTVCC

G9

VOSN

S1

H9

VOR

B1

J9

GND

J10

GND

L4

GND

L5

GND

K4

SW0

B10

DNC

E11

VORB0+

D10

VORB0-

E10

GND

L6

GND

K7

GND

K8

GND

K9

DNC

C10

SW1

L10

GND

M4

VINH0

B12

VINH0

B11

VINH0

A12

VINH0

A11

DNC

K10

VINL

F12

GND

M6

DNC

H11

VINH1

H12

VINH1

J11

VINH1

J12

VINH1

K11

VINH0

E12

VINH0

D12

VINH0

D11

VINH0

C12

VINH0

C11

VINL

F11

GND

M7

VINH1

K12

VINH1

L11

VINH1

L12

VINH1

M11

VINH1

M12

SGN

D

G7

SGN

D

G8

GND

D7

R24

(OPT)

R24

(OPT)

+

COUT8 330uF

+

COUT8 330uF

CIN1 10uF

1210

CIN1 10uF

1210

P3P3

R23

(OPT)

R23

(OPT)

C2 OPT

C2 OPT

COUT6 100uF

1210

COUT6 100uF

1210

+

CIN3 150uF

+

CIN3 150uF

R20

22.6K

R20

22.6K

R10 10K

R10 10K

R19

787

R19

787

E2

INTVCC

E2

INTVCC

R13

OPT

R13

OPT

E8

GND0_SNS

E8

GND0_SNS

J1

VIN

J1

VIN

R9 10K

R9 10K

R17

OPT

R17

OPT

R7 10K

R7 10K

J2

GND

J2

GND

R18

0

R18

0

P5P5

P2P2

R11 10K

R11 10K

C4 3.3nF

C4 3.3nF

C5 10nF

C5 10nF

E3

VIN

E3

VIN

CIN7 10uF

CIN7 10uF

C1

OPT

C1

OPT

R14 3.4K

R14 3.4K

CIN2 10uF

1210

CIN2 10uF

1210

COUT9 100uF

COUT9 100uF

E4

GND

E4

GND

R15 10K

R15 10K

E6

VOUT0_SNS

E6

VOUT0_SNS

R120

0

R120

0

SW1SW1

1

2

3

4

5

6

+

COUT5 330uF

+

COUT5 330uF

CIN5 10uF

CIN5 10uF

J3

VOUT0

J3

VOUT0

COUT1 100uF

COUT1 100uF

COUT7 100uF

1210

COUT7 100uF

1210

R6 10K

R6 10K

E5

VDD33

E5

VDD33

J4

GND

J4

GND

P4P4

COUT3 OPT

COUT3 OPT

COUT11

OPT

COUT11

OPT

C6 OPT

C6 OPT

Содержание DC1989A-A

Страница 1: ...alu ationoftheDC DCconverter Tofullyexploretheextensive powersystemmanagementfeaturesofthepart download the GUI software LTpowerPlay onto your PC and use LTC s I2C SMBus PMBus dongle DC1613A to connec...

Страница 2: ...r the proper scope probe technique Short stiff leads need to be soldered to the and terminals of an output capacitor The probe s ground ring needs to touch the lead and the probe tip needs to touch th...

Страница 3: ...3 dc1989aaf DEMO MANUAL DC1989A A Quick Start Procedure Figure 2 Proper Measurement Equipment Setup Figure 3 Measuring Output Voltage Ripple...

Страница 4: ...Quick Start Procedure Figure 4 Demo Setup with PC Figure 5 Efficiency vs Load Current at VIN 5V and VIN 12V Efficiency vs Load Current 100 90 70 80 60 50 LOAD CURRENT A EFFICIENCY 0 10 40 50 30 20 5 1...

Страница 5: ...OUT0 50A Figure 10 Total Current Readback vs Load Current at VIN 12V VOUT0 1V Figure 8 Thermal Performance at VIN 12V VOUT0 1V IOUT0 50A TA 23 8 C Air Flow 200LFM VOUT0 20MHz BW 50mV DIV 25A TO 50A LO...

Страница 6: ...ing up to program or tweak the power management scheme in a system or to diagnose power issues when bringing up rails LTpowerPlay utilizes the DC1613A USB to SMBus controller to communicate with one o...

Страница 7: ...on from the RAM of LTM4676 and loads it into the GUI d If you want to change the output voltage to a different value like 1 5V In the Config tab type in 1 5 in the VOUT_COMMAND box like this Then clic...

Страница 8: ...D PANASONIC LN1271RTR 18 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI 98414 G06 12ULF 19 1 J8 PIN HEADER 20 DUAL ROW RA M Mill Max 802 40 020 20 0001 20 1 J9 CONN SOCKET 20 DUAL ROW RA F Mill Max 803 43...

Страница 9: ...992CS6 1 56 1 U8 IC LT1803IS5 S5 TSOT LINEAR TECH LT1803IS5 Additional Demo Board Circuit Components 1 0 CIN12 CIN15 CIN19 OPT CAP OPTIONAL 2 0 C1 COUT2 C2 COUT3 OPT C6 C8 C9 COUT10 C10 COUT11 C11 COU...

Страница 10: ...R IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PE...

Страница 11: ...PERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERIN...

Страница 12: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Страница 13: ...EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBS...

Страница 14: ...HIGH EFFICIENCY POLY PHASE DC DC STEP DOWN HZ JIAN L B LTM4676EY DEMO CIRCUIT 1989A A SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone...

Страница 15: ...APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS C...

Страница 16: ...LUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CO...

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