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dc1989aaf

DEMO MANUAL DC1989A-A

parts List

ITEM QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

10 CIN1, CIN2, CIN4-CIN11

CAP., X5R, 10µF, 35V, 10%, 1210

AVX, 1210DD106KAT2A

2

1

CIN3

CAP., 150µF, 35V, ALUMINUM ELECTR., 

SUN ELECT., 35CE150AX

3

8

COUT1, COUT6, COUT7, COUT9, COUT12, COUT17, 

COUT18, COUT20

CAP., X5R, 100µF, 6.3V, 20% 1210

AVX, 12106D107KAT2A 

4

1

C3

CAP., X5R, 220pF, 16V, 10%, 0603

AVX, 0603YD221KAT2A

5

6

COUT4, COUT5, COUT8, COUT15, COUT16, COUT19 CAP., 330µF, 6.3V, POSCAP, D3L

SANYO, 6TPF330M9L

6

1

C7

CAP., X7R, 470pF, 16V, 10%, 0603

AVX, 0603YC471KAT2A

7

1

C4

CAP., X7R, 3.3nF, 16V, 10%, 0603 (3300pF) AVX, 0603YC332KAT2A

8

2

C5, C12

CAP., X5R, 10nF, 16V, 10%, 0603 (0.01µF)

AVX, 0603YD103KAT2A

9

1

C21

CAP., X5R, 100nF, 16V, 10%, 0603 (0.1µF)

AVX, 0603YD104KAT2A

10

1

C70

CAP., X5R, 1µF, 25V, 10%, 0805

AVX, 08053D105KAT2A

11

2

C65, C68

CAP., X5R, 1µF, 25V, 10%, 1206

AVX, 12063D105KAT2A

12

1

C67

CAP., X7R, 0.1µF, 25V, 10%, 1206

AVX, 12063C104KAT2A

13

1

C64

CAP., X5R, 4.7µF, 25V, 10%, 0603

MURATA, GRM188R61E475KE11D 

14

1

C66

CAP., X5R, 0.22µF, 25V, 10%, 0805

AVX, 08053D224KAT2A

15

1

C69

CAP., X7R, 150pF, 25V, 10%, 0603

AVX, 06033C151KAT2A

16

2

D1, D2

LED GREEN S-GW TYPE SMD

PANASONIC LN1371SGTRP

17

1

D3

LED RED S-TYPE GULL WING SMD

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 803-43-020-20-001

21

2

J10, J11

CONN, BNC, 5 PINS

CONNEX, 112404

22

1

Q1

MOSFET P-CH 20V 0.58A SOT-23

VISHAY TP0101K-T1-E3

23

2

Q2, Q3

MOSFET N-CH 60V 115mA SOT-23

FAIRCHILD 2N7002K

24

2

Q11, Q12

N-CHANNEL 30-V MOSFET, TO-252

VISHAY, SUD50N03-09P-E3

25

1

R20

RES., CHIP, 22.6k, 1%, 0603

VISHAY CRCW060322K6FKEA

26

25 R2, R4, R18, R25, R26, R120-R122, R30, R32, R47, 

R48, R50, R56, R58, R60, R72, R74, R85, R86, 

R89, R90, R92, R104, R119

RES., CHIP, 0Ω, 1%, 0603

VISHAY CRCW06030000Z0EA

27

4

R49, R51, R53, R54

RES., CHIP, 0Ω, 1%, 2010

VISHAY CRCW20100000Z0EA

28

16 R6, R7, R8, R9, R10, R11, R12, R15, R35, R36, 

R39, R64, R78, R97, R98, R116

RES., CHIP, 10k, 1%, 0603

VISHAY CRCW060310K0FKEA

29

1

R27

RES., CHIP, 51k, 1%, 0603

VISHAY CRCW060351K0FKEA

30

1

R14

RES., CHIP, 3.4k, 1%, 0603

VISHAY CRCW06033K40FKEA

31

2

R16, R41

RES., CHIP, 10Ω, 1%, 0603

VISHAY CRCW060310R0FKEA

32

1

R112

RES., CHIP, 100Ω, 1%, 0603

VISHAY CRCW0603100RFKEA

33

1

R113

RES., CHIP, 1.4k, 1%, 0603

VISHAY CRCW06031K40FKEA

34

1

R19

RES., CHIP, 787Ω, 1%, 0603

VISHAY CRCW0603787RFKEA

35

1

R40

RES., CHIP, 1.65k, 1%, 0603

VISHAY CRCW06031K65FKEA

36

1

R42

RES., CHIP, 1.65k, 1%, 0603

VISHAY CRCW06031K65FKEA

37

1

R80

RES., CHIP, 2.43k, 1%, 0603

VISHAY CRCW06032K43FKEA

38

2

R95, R96

RES., CHIP, 4.99k, 1%, 0603

VISHAY CRCW06034K99FKEA

Summary of Contents for DC1989A-A

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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