Linear Technology DC2117A Demo Manual Download Page 7

7

dc2117af

DEMO MANUAL DC2117A

parts list

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

1

CIN1

CAP, 100µF 20% 200V ELEC

NIC NRB-XS101M200V16x20TBF

2

5

CIN2, CIN3, CIN4, CIN5, C14

CAP, 1812 0.47µF 10% 200V X7R

MURATA GRM43DR72E474KW01L

3

2

CIN6, CIN7

CAP, 1210 0.1µF 10% 200V X7R

MURATA GRM32DR72D104KW01L

4

1

COUT1

CAP, 1210 22µF 10% 16V X7R

TDK C3225X7R1C226K

5

2

COUT2, COUT3

CAP, 7343 150µF 20% 16V

AVX TPSD157M016R0125

6

3

C2, C4, C13

CAP, 0603 0.1µF 10% 25V X7R

TDK C1608X7R1E104K

7

1

C3

CAP, 0603 1nF 10% 50V X7R

AVX 06035C102KAT2A

8

1

C6

CAP, 0603 4700pF 10% 50V X7R

AVX 06035C472KAT2A

9

1

C7

CAP, 0603 1µF 20% 16V X7R

TDK C1608X7R1C105M

10

1

C9

CAP, 0603 10pF 10% 50V X7R

AVX 06035C100KAT2A

11

1

C10

CAP, 0603 100pF 5% 50V NPO

AVX 06035A101JAT2A

12

1

C11

CAP, 1206 0.033µF 20% 200V

VISHAY VJ1206Y333MXCAC

13

1

C12

CAP, 0603 4.7µF 20% 16V X5R

TDK C1608X5R1C475M080AC

14

1

C15

CAP, 1210 4.7µF 20% 16V X7R

AVX 1210YC475KAT2A

15

1

L1

IND, 33µH 15%

WURTH ELEKTRONIK 7443633300

16

1

L2

IND, 470µH

COILCRAFT MSS1048T-474KLB

17

1

L3

IND, 1µH

VISHAY IHLP-1616BZER1R0M11

18

3

Q2, Q3, Q4

XSTR, N-CHANNEL DMOS FET

INFINEON BSC520N15NS3G

19

1

RS1

RES, 2512 0.006Ω 5% 1/4W

VISHAY WSL25126L000FEA18

20

1

R1

RES, 0603 191kΩ 1% 1/10W

VISHAY CRCW0603191KFKEA

21

1

R2

RES, 0603 1.74kΩ 1% 1/10W

VISHAY CRCW06031K74FKEA

22

1

R6

RES, 0603 301kΩ 1% 0.1W

VISHAY CRCW0603301KFKEA

23

8

R8, R10, R22, R24, R27, R28, 

R29, R35

RES, 0603 0Ω JUMPER

VISHAY CRCW06030000Z0EA

24

1

R9

RES, 0603 10MΩ 5% 1/10W

VISHAY CRCW060310M0JNEA

25

1

R12

RES, 0603 2.2Ω 5% 1/10W

VISHAY CRCW06032R20JNEA

26

1

R13

RES, 0603 10kΩ 1% 1/10W

VISHAY CRCW060310K0FKEA

27

1

R14

RES, 0603 10kΩ 5% 1/10W

VISHAY CRCW060310K0JNEA

28

1

R15

RES, 0603 140kΩ 1% 1/10W

VISHAY CRCW0603140KFKEA

29

3

R16, R17, R23

RES, 0603 100kΩ 5% 1/10W

VISHAY CRCW0603100KJNEA

30

1

R18

RES, 0603 49.9kΩ 1% 0.1W

VISHAY CRCW060349K9FKEA

31

1

R25

RES, 0603 30.1kΩ 1% 1/10W

VISHAY CRCW060330K1FKEA

32

1

R26

RES, 0603 80.6kΩ 1% 1/10W

VISHAY CRCW060380K6FKEA

33

2

R30, R36

RES, 0603 10Ω 1% 1/10W

VISHAY CRCW060310R0FKEA

34

1

R31

RES, 0603 2MΩ 1% 1/10W

VISHAY CRCW06032M00FKEA

35

1

R32

RES, 0603 267kΩ 1% 1/10W

VISHAY CRCW0603267KFKEA

36

1

R34

RES, 0603 196kΩ 1% 1/10W

VISHAY CRCW0603196KFKEA

37

1

U1

IC, SYNCHRONOUS BUCK CONVERTER

LINEAR TECH. LTC3895EFE

38

1

U2

IC, SYNCHRONOUS STEP DOWN REGULATOR

LINEAR TECH LTC3639EMSE

Summary of Contents for DC2117A

Page 1: ...ivers can be adjusted from 5V to 10V to enable the use of logic or standard level MOSFETs to maximize efficiency The EXTVCC pin permits the LTC3895 to be powered from the output of the switch ing regu...

Page 2: ...See Figure 2 for proper scope probe technique 1 Place jumpers in the following positions JP1 ON JP4 FCM JP5 ON JP8 OFF 2 With power off connect the input power supply to VIN and GND 3 Turn on the powe...

Page 3: ...Ceramic Capacitor Demonstration circuit 2117A s mode selector allows the converter to run in forced continuous operation pulse skipping operation Burst Mode operation or Burst Mode operation with adju...

Page 4: ...Inductor DCR Current Sensing CONFIGURATION RS1 R24 R28 C16 R37 R38 R39 R40 Current Sense Resistor Default Ref Sch Ref Sch Ref Sch OPEN OPEN OPEN OPEN OPEN Inductor DCR Current Sensing 0 Copper OPEN O...

Page 5: ...ition The onboard BIAS supply output voltage is 12V Alternatively EXTVCC can also be powered by an external power supply 1 Leave the JP7 OPEN 2 Keep the JP8 at the OFF position 3 Apply a DC voltage 14...

Page 6: ...Figure 4 DC2117A VOUT 1 25A 2 5A Load Transient at VIN 48V Figure 5 DC2117A VOUT 1 25A 2 5A Load Transient at VIN 130V 200 s DIV 20MHz BW 100mV DIV DC2117a F04 VOUT 200 s DIV 20MHz BW 100mV DIV DC211...

Page 7: ...IND 1 H VISHAY IHLP 1616BZER1R0M11 18 3 Q2 Q3 Q4 XSTR N CHANNEL DMOS FET INFINEON BSC520N15NS3G 19 1 RS1 RES 2512 0 006 5 1 4W VISHAY WSL25126L000FEA18 20 1 R1 RES 0603 191k 1 1 10W VISHAY CRCW0603191...

Page 8: ...RANSISTOR OPTION INFINEON IPD320N20N3 G OPTION 10 0 Q12 Q13 XSTR OPTION OPTION 11 0 R3 R4 R5 R7 R11 R19 R20 R21 R37 R38 R39 R40 RES 0603 OPTION OPTION 12 0 R33 RES 1206 OPTION OPTION Hardware For Demo...

Page 9: ...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 TECHN...

Page 10: ...ORY INCLUDING 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 INCIDENTA...

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