background image

9

dc2066af

DEMO MANUAL DC2066A

schematic DiaGram

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

NOTE: UNLESS OTHERWISE SPECIFIED

1.  ALL RESISTORS ARE 0603.      ALL CAPACITORS ARE 0603.

35V

4.5V - 16V

1.0V / 18A

2.5V

EEFGX0E471R

1.8V / 18A

2.5V

EEFGX0E471R

1210

1210

1210

1210

1210

1210

1210

1210

1210

1210

0.035 VIA TESTPOINTS

 WITH DIGITAL POWER MANAGEMENT

*

WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R8 = 0ohm.

*

OFF

ON

ON

OFF

VOSNS0-

SYNC

SHARE_CLK

ALERTB

SCL

SDA

GPIO0B

GPIO1B

ASEL

FREQ_CFG

VOUT0_CFG

VTRIM0_CFG

VOUT1_CFG

VTRIM1_CFG

RUN1

VDD25

RUN0

INTVCC

VOSNS1

VIN

VOUT0

VOUT1

VIN

SYNC

SHARE_CLK

ALERTB

SCL

SDA

GPIO0B

GPIO1B

COMP0a

COMP1a

RUN0

RUN1

VDD33

SIZE

DATE:

.V

ER

.O

CI

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

1

Friday, July 17, 2015

1

3

DUAL STEP-DOWN uMODULE REGULATOR

HZ

HAORAN W.

B

LTM4677EY DEMO CIRCUIT 2066A

SIZE

DATE:

.V

ER

.O

CI

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

1

Friday, July 17, 2015

1

3

DUAL STEP-DOWN uMODULE REGULATOR

HZ

HAORAN W.

B

LTM4677EY DEMO CIRCUIT 2066A

SIZE

DATE:

.V

ER

.O

CI

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

1

Friday, July 17, 2015

1

3

DUAL STEP-DOWN uMODULE REGULATOR

HZ

HAORAN W.

B

LTM4677EY DEMO CIRCUIT 2066A

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

HAORAN W.

PRODUCTION

51-

71-

7

1

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

HAORAN W.

PRODUCTION

51-

71-

7

1

__

REVISION HISTORY

DESCRIPTION

DATE

APPROVED

ECO

REV

HAORAN W.

PRODUCTION

51-

71-

7

1

__

E13

GPIO0B

E4

VIN

COUT1 100uF

+

COUT11 470uF

EEFGX0E471R

2.5V

CIN3 10uF

J7

VOUT0

R18 10K

CIN2 10uF

R9

0

SW0

RUN0

1

3

2

E9

SYNC

R10 10K

+

COUT10 470uF

EEFGX0E471R

2.5V

R7

0

E17

GND0_SNS

R33

0

COUT7 100uF

R8

OPT

C2

OPT

J10

VIN

CIN5 10uF

R20

OPT

0805

J5

GND

U1

LTM4677EY

VOUT0

A1

VOUT0

A2

VOUT0

A3

VOUT0

D1

VO

UT1

J1

VO

UT1

J2

VO

UT1

J3

VO

UT1

K1

VOUT0

B1

VOUT0

B2

VOUT0

B3

VOUT0

D2

VO

UT1

K2

VO

UT1

K3

VO

UT1

L1

VO

UT1

L2

VOUT0

C1

VOUT0

C2

VOUT0

C3

VOUT0

D3

GND

A4

GND

A6

GND

A7

GND

A8

VO

UT1

L3

VO

UT1

M1

VO

UT1

M2

VO

UT1

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

TS

NS

1A

J5

TS

NS

1B

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

SG

ND

F7

SG

ND

F8

COM

P1a

H8

COM

P1b

J8

GND

H10

GND

J4

GND

M8

D9

VOSNS0-

E9

INTVCC

F9

INTVCC

G9

VO

SN

S1

H9

VO

RB

1

J9

GND

J10

GND

L4

GND

L5

GND

K4

SW0

B10

NC

E11

VORB0+

D10

VORB0-

E10

GND

L6

GND

K7

GND

K8

GND

K9

NC

C10

SW

1

L10

GND

M4

VIN0

B12

VIN0

B11

VIN0

A12

VIN0

A11

NC

K10

SVIN

F12

GND

M6

NC

H11

VIN

1

H12

VIN

1

J11

VIN

1

J12

VIN

1

K11

VIN0

E12

VIN0

D12

VIN0

D11

VIN0

C12

VIN0

C11

SVIN

F11

GND

M7

VIN

1

K12

VIN

1

L11

VIN

1

L12

VIN

1

M11

VIN

1

M12

SG

ND

G7

SG

ND

G8

GND

D7

ISNS0a-

E1

ISNS0b-

E2

F1

F2

IS

NS

1b-

G1

IS

NS

1a-

G2

IS

NS

1b+

H1

IS

NS

1a+

H2

E16

VDD25

R14 10K

R32

0

COUT8 100uF

C14

1.8nF

C1

1.8nF

+

COUT5 470uF

P1

R24 10K

R30

0

E7

GND1_SNS

SW1

RUN1

1

3

2

R29

(OPT)

R16 10K

E8

VDD33

COUT6 100uF

E12

SDA

C15 OPT

P2

J8

GND

R25

0

+

COUT9 470uF 2.5V EEFGX0E471R

P4

C17 OPT

R11 10K

+

COUT4 470uF

R19 10K

P5

R23

OPT

R3 0

E14

GPIO1B

COUT3 100uF

E15

VOUT0_SNS

COUT2 100uF

J9

GND

R6 OPT

R27

(OPT)

E3

INTVCC

+

CIN1 150uF

R15 10K

R2 17.8K

E1

VOUT1_SNS

E10

ALERTB

R17

OPT

0805

R13 10K

E11

SCL

R22 17.8K

+

COUT12 470uF

EEFGX0E471R

2.5V

R12 10K

E6

SHARE_CLK

P3

CIN4 10uF

R28

(OPT)

E2

GND

C16 OPT

J6

VOUT1

R31

6.34K

R26

(OPT)

E5

GND

Figure 12.  DC2066A Demo Circuit Schematic, Page 1

Summary of Contents for LTM4677EY

Page 1: ...verter To fully explore the extensive power system management features of the part download the GUI software LTpowerPlay onto your PC and use LTC s I2C SMBus PMBus dongle DC1613A to connect to the L L...

Page 2: ...e lead Demonstration circuit 2066A is easy to set up to evaluate the performance of the LTM4677EY Refer to Figure 2 for the proper measurement equipment setup and follow the procedure below 1 With pow...

Page 3: ...AL DC2066A LOAD1 0A TO 18A IOUT1 VOUT1 LOAD0 0A TO 18A IOUT0 VOUT0 IIN 4 5V TO 16V VIN DC2066A F02 VOUT GND COUT Figure 2 Proper Measurement Equipment Setup Figure 3 Measuring Output Voltage Ripple Qu...

Page 4: ...0 VOUT1 12 PIN J1 CONNECTOR USB CABLE VIN INPUT POWER SUPPLY LOAD0 LOAD 1 USB TO I2 C PMBus DONGLE DC1613A LTM4677 DEMO BOARD DC2066A LOAD CURRENT A 0 0 EFFICIENCY 95 65 85 75 90 80 70 60 10 0 6 0 14...

Page 5: ...Output Voltage VOUT1 vs Load Current VOUT1 1 8V Measured by 1X Probe on COUT3 Figure 10 Output Voltage Ripple at VIN 12V VOUT1 1 8V IOUT1 18A Measured by 1X Probe on COUT3 Figure 11 Thermal at VIN 12V...

Page 6: ...providesunprecedenteddiagnostic and debug features It becomes a valuable diagnostic tool during board bring up to program or tweak the power management scheme in a system or to diagnose power issues w...

Page 7: ...Toolbar click the R RAM to PC icon to read the RAM from the LTM4677 This reads the configuration from the RAM of LTM4677 and loads it into the GUI Then click the W PC to RAM icon to write these regis...

Page 8: ...CAP X7R 1 8nF 25V 5 0603 AVX 06033C182JAT2A Additional Demo Board Circuit Components 16 0 C2 C15 C17 OPT CAP 0603 OPTIONAL 17 1 Q1 N CHANNEL 30 V MOSFET VISHAY SUD50N03 09P 18 10 R3 R7 R9 R25 R31 R32...

Page 9: ...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 C...

Page 10: ...CUIT 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 C...

Page 11: ...ER 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 MA...

Page 12: ...DING 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 CONS...

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