DC1185B-A Datasheet DC1185B-A | P7-P9

dc1185b-a/-bf

DEMO MANUAL

DC1185B-A/-B

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 3 C11, C32, C36 CAP, 0805 4.7µF 10% 6.3V X5R AVX 08056D475KAT

2 5 C12, C14, C15, C41, C44 CAP, 0603 1nF 10% 50V X7R AVX 06035C102KAT

3 5 C2, C17, C20, C21, C47 CAP, 0603 0.1µF 10% 25V X7R TDK C1608X7R1E104K

4 2 C43, C42 CAP, 0603 100pF 5% 25V X7R AVX 06033C101JAT

5 1 CIN1 CAP, 180µF 20% 16V OSCON SANYO OSCON 16SVP180MX

6 2 CIN2, CIN3 CAP, 1210 10µF 10% 16V X5R TAIYO YUDEN EMK325BJ106KN-T

7 2 COUT1, COUT4 CAP, 1210 47µF 20% 6.3V X5R TDK C3225X5R0J476MT

8 4 COUT2, COUT3, COUT5, COUT6 CAP, 7343 330µF 20% 2.5V POSCAP SANYO 2R5TPE330M9

9 2 D2, D1 DIODE, CMDSH-3 SOD323 CENTRAL CMDSH-3TR

10 2 L1, L2 IND, 0.56µH TOKO FDU0650-R56M=P3

11 2 Q1, Q3 XSTR, N-CHANNEL MOSFET RENESAS RJK0305DPB

12 2 Q2, Q4 XSTR, N-CHANNEL MOSFET RENESAS RJK0330DPB

13 1 R10 RES, 0603 3.16k 1% 1/10W VISHAY CRCW06033K16FKEA

14 1 R18 RES, 0603 2.2Ω 5% 1/10W VISHAY CRCW06032R20JNEA

15 1 R27 RES, 0603 30.1k 1% 1/10W VISHAY CRCW060330K1FKEA

16 4 R29, R30, R39, R40 RES, 0603 100Ω 5% 1/10W VISHAY CRCW0603100RJNEA

17 2 R31,R35 RES, 0603 8.66k 1% 1/10W VISHAY CRCW06038K66FKEA

18 2 R32,R33 RES, 0603 20k 1% 1/10W VISHAY CRCW060320KFKEA

19 1 R43 RES, 0603 25.5k 1% 1/10W VISHAY CRCW060325K5FKEA

1 R46 RES, 0603 100k 5% 1/10W VISHA

Y CRCW0603100KJNEB

21 2 R7, R4 RES, 0603 10k 1% 1/16W VISHAY CRCW060310K0FKEB

22 3 R8, R9, R25 RES, 0603 0Ω JUMPER PANASONIC ERJ3GEY0R00V

23 2 RS2, RS1 RES, 2010 0.003Ω 5% 1/2W VISHAY WSL20103L000FEA

24 1 U1 IC, LTC3850EUF LINEAR TECH. LTC3850EUF

Additional Circuit Components

1 0 CIN5, CIN4 CAP, 1210 OPTION OPTION

2 0 C1, C37, C38, C47, C48, C49 CAP, 0603 OPTION OPTION

3 1 C50 CAP, 0603 1µF 20% 16V X7R AVX 0603YC105MAT2A

4 0 D4, D3 DIODE, SCHOTTKY 40V 3A OPTION OPTION

5 0 Q5, Q6, Q7, Q8 DO NOT STUFF OPTION

6 3 R1, R3, R36 RES, 0603 0Ω JUMPER PANASONIC ERJ3GEY0R00V

7 0 R2, R26, R28, R34, R37, R38, R41, R42,

R44, R45, R47, R49, R50-R53, R55,

R60-R62

RES, 0603 OPTION OPTION

Hardware

1 12 E1-E6, E9-E14 TURRET MILL-MAX 2501-2-00-80-00-00-07-0

2 2 JP2, JP1 HEADER, 3-PIN, 2mm SAMTEC TMM-103-02-L-S

3 1 JP3 HEADER, 4-PIN SAMTEC TMM-104-02-L-S

4 6 J1, J2, J3, J4, J5, J6 JACK, BANANA KEYSTONE 575-4

5 3 JP1-JP3 SHUNT, 2mm SAMTEC 2SN-BK-G

(DC1185B-A)

dc1185b-a/-bf

DEMO MANUAL

DC1185B-A/-B

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 3 C11, C32, C36 CAP, 0805 4.7µF 10% 6.3V X5R AVX 08056D475KAT

2 5 C12, C14, C15, C41, C44 CAP, 0603 1nF 10% 50V X7R AVX 06035C102KAT

3 5 C2, C17, C20, C21, C47 CAP, 0603 0.1µF 10% 25V X7R TDK C1608X7R1E104K

4 2 C43, C42 CAP, 0603 100pF 5% 25V X7R AVX 06033C101JAT

5 1 CIN1 CAP, 180µF 20% 16V OSCON SANYO OSCON 16SVP180MX

6 2 CIN2, CIN3 CAP, 1210 10µF 10% 16V X5R TAIYO YUDEN EMK325BJ106KN-T

7 2 COUT1, COUT4 CAP, 1210 100µF 20% 6.3V X5R TDK C3225X5R0J107MT

8 4 COUT2, COUT3, COUT5, COUT6 CAP, 7343 330µF 20% 2.5V POSCAP SANYO 2R5TPE330M9

9 2 D2, D1 DIODE, CMDSH-3 SOD323 CENTRAL CMDSH-3TR

10 2 L1, L2 IND, 0.4µH VITEC 59PR9875

11 2 Q1, Q3 XSTR, N-CHANNEL MOSFET RENESAS RJK0305DPB

12 2 Q2, Q4 XSTR, N-CHANNEL MOSFET RENESAS RJK0330DPB

13 1 R10 RES, 0603 2.55k 1% 1/10W VISHAY CRCW06032K55FKEB

14 1 R18 RES, 0603 2.2Ω 5% 1/10W VISHAY CRCW06032R20JNEA

15 1 R27 RES, 0603 17.8k 1% 1/10W VISHAY CRCW060317K8FKEA

16 4 R29, R30, R39, R40 RES, 0603 100Ω 5% 1/10W VISHAY CRCW0603100RJNEA

17 2 R31, R35 RES, 0603 5.9k 1% 1/10W VISHAY CRCW06035K90FKEA

18 2 R32, R33 RES, 0603 20k 1% 1/10W VISHAY CRCW060320KFKEA

19 1 R43 RES, 0603 10.0k 1% 1/10W VISHAY CRCW060310K0FKEB

20 1 R46 RES, 0603 100k

5% 1/10W VISHAY CRCW0603100KJNEB

2 R7, R4 RES, 0603 10k 1% 1/16W VISHAY CRCW060310K0FKEB

22 3 R8, R9, R25 RES, 0603 0Ω JUMPER PANASONIC ERJ3GEY0R00V

23 2 RS2, RS1 RES, 2010 0.002Ω 5% 1/2W VISHAY WSL20102L000FEA

24 1 U1 IC, LTC3850EUF LINEAR TECH. LTC3850EUF

Additional Circuit Components

1 0 CIN5, CIN4 CAP, 1210 OPTION OPTION

2 0 C1, C37, C38, C47, C48, C49 CAP, 0603 OPTION OPTION

3 1 C50 CAP, 0603 1µF 20% 16V X7R AVX 0603YC105MAT2A

4 0 D4, D3 DIODE, SCHOTTKY 40V 3A OPTION OPTION

5 0 Q5, Q6, Q7, Q8 DO NOT STUFF OPTION

6 3 R1, R3, R36 RES, 0603 0Ω JUMPER PANASONIC ERJ3GEY0R00V

7 0 R2, R26, R28, R34, R37, R38, R41,

R42, R44, R45, R47, R49, R50-R53,

R55, R60-R62

RES, 0603 OPTION OPTION

Hardware

1 12 E1-E6, E9-E14 TURRET MILL-MAX 2501-2-00-80-00-00-07-0

2 2 JP2, JP1 HEADER, 3-PIN, 2mm SAMTEC TMM-103-02-L-S

3 1 JP3 HEADER, 4-PIN SAMTEC TMM-104-02-L-S

4 6 J1, J2, J3, J4, J5, J6 JACK, BANANA KEYSTONE 575-4

5 3 JP1-JP3 SHUNT, 2mm SAMTEC 2SN-BK-G

PARTS LIST

(DC1185B-B)

dc1185b-a/-bf

DEMO MANUAL

DC1185B-A/-B

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

SCHEMATIC DIAGRAM

VO1-

VOUT1

VIN

TRK/SS1

EXTVCC

VOUT2

VO2-

[1]

VO1+

GND

VO2+

GND

VIN+

VIN-

GND

OFF

RUN1

RUN2

OFF

PGOOD

GND

SYNC

TRK/SS2

ASSY VOUT2 RS1, RS2 L1, 2 Q1, 3 Q2, 4 R27 R31, R35

2.0V/10A

1.5V/15A

VOUT1

1.8V/10A

1.2V/15A

0.003

0.002 VITEC 59PR9875

[1]

30.1K

17.8K

8.66K

5.9K

25.5K

10.0K

VOUT1 VOUT2

TOP FEED BACK R

ITH1 ITH2

OPTIONAL JUMPERS FOR

SINGLE OUTPUT/DUAL PHASE

OPERATION OPTIONAL DCR SENSING

NOTE:

WHEN DCR SENSING IS

CCMBM

0.4uH

R43

- A

- B

R10

3.16K

2.55K

FSW

NOTE:

RENESAS RJK0305DPB RENESAS RJK0330DPB

STUFF R60 WITH 0 OHMS FOR

4.6V<VIN<5.5V

COUT1/COUT4

47uF

100uF

TOKO FDU0650-R56M=P3

NOTE:

2010

SET RSENSE FILTER TIME CONSTANT 0.6nH/RSENSE FOR 2010 PACKAGE.

RENESAS RJK0330DPB

Represents

Tooling Holes

on PCB

REMOVE R30, R29, R40 & R39

2. FSW = 400kHz For Assy - B

CALCULATE R45, R47, C14 AND

R51, R53 & C15 PER THE DATA

SHEET. ALSO REFER TO QSG

FOR EXAMPLE.

STUFF R61 AND R62 WITH 0 OHMS.

IMPLEMENTED, SHORT RSENSE1 & RSENSE2.

6.5V - 14V

3. DO NOT APPLY LOAD FROM THE VO1+ TO VO1- OR FROM THE VO2+ TO VO2- TURRETS.

THESE ARE ONLY INTENDED TO KELVIN SENSE THE OUTPUT VOLTAGE ACROSS COUT1

AND COUT4.

1. FSW = 500kHz For Assy - A

1.1

CHANGE: Q1,Q2,Q3,Q4 08/04/13 MIKE S.

MIKE S.

MIKE S. 08/05/13

RENESAS RJK0305DPB

VSW2

VSW1

S1+

S1-

S2+

S2-

TRK/SS1

ITH2

VFB2

VFB1

RUN2

RUN1

EXTVCC

PGOOD

ITH1

TRK/SS2

ITH1

VFB1 VFB2

ITH2

TRK/SS2TRK/SS1

RUN2RUN1

VSW1 S1+

S1-

VSW2 S2+

S2-

VOUT1

VOUT2

VL1-

VL2-

VOUT1

INTVCC

VIN

INTVCC

VIN

INTVCCVIN

VIN

INTVCC

VIN

INTVCC

VINF

INTVCCVINF

VL1-

VL2-

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROD1 12/12/07

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROD1 12/12/07

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

PROD1 12/12/07

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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

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

Applications Engineering for assistance.

This circuit is proprietary to Linear Technology and supplied

for use with Linear Technology parts.

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

DC1185B

Tuesday, September 10, 2013

SCH, LTC3850EUF, DUAL OUTPUT SYNCHRONOUS

1185B-1.DSNNONE

MEI

10/31/06

BUCK CONVERTER

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

DC1185B

Tuesday, September 10, 2013

SCH, LTC3850EUF, DUAL OUTPUT SYNCHRONOUS

1185B-1.DSNNONE

MEI

10/31/06

BUCK CONVERTER

SIZE

SCALE:

CAGE CODE

DWG NO

REV

SHEET

FILENAME:

TITLE

CONTRACT NO.

APPROVALS

DATE

DRAWN

CHECKED

APPROVED

ENGINEER

DESIGNER

TECHNOLOGY

1630 McCarthy Blvd.

Milpitas, CA 95035

Phone: (408)432-1900

Fax: (408)434-0507

DC1185B

Tuesday, September 10, 2013

SCH, LTC3850EUF, DUAL OUTPUT SYNCHRONOUS

1185B-1.DSNNONE

MEI

10/31/06

BUCK CONVERTER

X2X2

C14

1nF

C14

1nF

E2E2

R29

100

R29

100

COUT2

330uF

2.5V

COUT2

330uF

2.5V

COUT3

330uF

2.5V

COUT3

330uF

2.5V

R52

OPT

R52

OPT

E3E3

R61

OPT

R61

OPT

J6J6

R34

OPT

R34

OPT

CIN5

OPT

CIN5

OPT

CIN2

10uF

CIN2

10uF

R42

OPT

R42

OPT

C17

0.1uF

C17

0.1uF

R41

OPT

R41

OPT

E4E4

E14E14

R51

OPT

R51

OPT

R55

OPT

R55

OPT

[1]

E6E6

R62 OPTR62 OPT

C32

4.7uF

6.3V

C32

4.7uF

6.3V

R43

[1]

R43

[1]

CIN3

10uF

CIN3

10uF

C12

1nF

C12

1nF

C38

OPT

C38

OPT

E12E12

R25

C11

4.7uF

C11

4.7uF

LTC3850EUF

TRK/SS1

ITH1

VFB1

VFB2

ITH2

TRK/SS2

SENSE2-

SENSE2+

RUN2

BG2

INTVCC

PGND

BG1

BOOST1

TG1

SW1

MODE

FREQ

SENSE1-

VIN

ILIM

EXTVCC

PGOOD

SW2

TG2

BOOST2

RUN1

SENSE1+

SGND

E1E1

R45

OPT

R45

OPT

CIN4

OPT

CIN4

OPT

R39

100

R39

100

R32 20.0KR32 20.0K

RS2

[1]

RS2

[1]

R26

OPT

R26

OPT

R33 20.0KR33 20.0K

E13E13

JP3

MODE

JP3

MODE

CMDSH-3

OPT

2 1

R46

100K

R46

100K

J5J5

C20

0.1uF

C20

0.1uF

R40

100

R40

100

JP2JP2

R28

OPT

R28

OPT

L1 [1]L1 [1]

OPT

R27

[1]

R27

[1]

L2 [1]L2 [1]

C43 100pFC43 100pF

R9 0R9 0

[1]

R49

OPT

R49

OPT

R44

OPT

R44

OPT

10.0K

C21

0.1uF

C21

0.1uF

OPT

2 1

0.1uF

J2J2

COUT5

330uF

2.5V

COUT5

330uF

2.5V

X1X1

R60

OPT

R60

OPT

C41 1nFC41 1nF

R36 0R36 0

C36

4.7uF

6.3V

C36

4.7uF

6.3V

E10E10

OPT

CMDSH-3

C48

OPT

C48

OPT

R35

[1]

R35

[1]

OPT

C37

OPT

C37

OPT

COUT1

{1}

COUT1

{1}

C15

1nF

C15

1nF

J1J1

R31

[1]

R31

[1]

E9E9

C47

0.1uF

C47

0.1uF

C42

100pF

C42

100pF

E5E5

COUT6

330uF

2.5V

COUT6

330uF

2.5V

[1]

JP1JP1

R18 2.2R18 2.2

C49

OPT

C49

OPT

C44

1nF

C44

1nF

E11E11

R53

OPT

R53

OPT

RS1

[1]

RS1

[1]

OPT

R30

100

R30

100

OPT

J4J4

R47

OPT

R47

OPT

10.0K

C50

1uF

C50

1uF

J3J3

R37

OPT

R37

OPT

R50

OPT

R50

OPT

COUT4

{1}

COUT4

{1}

CIN1

180uF

16V

CIN1

180uF

16V

R10

[1]

R10

[1]

R38

OPT

R38

OPT

P1-P3 P4-P6 P7-P9 P10-P10

DC1185B-A

Mfr. #:

Buy DC1185B-A

Manufacturer:

Analog Devices Inc.

Description:

Power Management IC Development Tools LTC3850EUF Demo Board - 4.5V ? VIN ? 14V

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

DC1185B-A