Linear LT3748 Demo Manual Download Page 5

5

dc1860bfa

DEMO MANUAL DC1860B

pArts list

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

2

C2, C3 

Cap., X5R, 22µF, 16V, 20%, 1210

Taiyo Yuden EMK325BJ226MN 

2

1

C5 

Cap., X7S, 0.22µF, 100V, 10%, 0805

TDK C2012X7S2A224KT 

3

3

C6, C7, C8 

Cap., X7S, 4.7µF, 100V, 20%, 1812

TDK C4532X7S2A475MT 

4

1

C9 

Cap., Elect. 470µF, 63V, 20%, J16-PANASONIC

PANASONIC EEVFK1J471M 

5

1

C10 

Cap., X5R, 4.7µF, 16V, 20%, 0805

Taiyo Yuden EMK212BJ475MG 

6

1

C11 

Cap., X5R, 0.33µF, 10V, 20%, 0603

AVX 0603ZD334MAT1A 

7

1

C12 

Cap., NPO, 470pF, 25V, 10%, 0603

AVX 06033A471KAT2A 

8

1

C13 

Cap., Ceramic 2.2nF, 250V, 10%, 1812

Murata GA343QR7GD222KW01L 

9

2

C14, C15 

Cap,, X7R, 6800pF, 25V, 20%, 0603

AVX 06033C682MAT2A 

10

1

D1 

Diode Zener 62V

ON Semi. 1SMB5943BT3 

11

1

D2 

Schottky Diode 1A/100V, PowerDItm123

Diodes Inc. DFLS1100 

12

1

D3 

Schottky Diode 3A, PowerDi5

Diodes Inc. PDS3200-13 

13

1

L1 

Inductor, 1.8µH

Würth Electronik 744318180 

14

1

Q1 

Mosfet N-Channel, 100V, LFPAK

Renesas HAT2173H-EL-E 

15

2

R1, R13 

Res., Chip, 16k, 0.25W, 5%, 1206

Vishay CRCW120616K0JNED 

16

4

R2, R14, R15, R16 

Res., Chip, 11.8k, 0.25W, 1%, 1206

Vishay CRCW120611K8FKEA 

17

2

R3, R7 

Res/Jumper, Chip, 0Ω, 1/16W, 1 AMP 0603

Vishay CRCW06030000Z0EA 

18

1

R4 

Res., Chip, 200k, 0.06W, 1%, 0603

Vishay CRCW0603200KFKEA 

19

1

R5 

Res., Chip, 36k, 0.06W, 5%, 0603

Vishay CRCW060336K0JNEA 

20

1

R6 

Res., Chip, 82.5k, 0.06W, 1%, 0603

Vishay CRCW060382K5FKEA 

21

1

R8 

Res., Chip, 22, 0.06W, 5%, 0603

Vishay CRCW060322R0JNEA 

22

1

R9 

Res., Chip, 270k, 0.06W, 5%, 0603

Vishay CRCW0603270KJNEA 

23

1

R10 

Res., Chip, 40.2k, 0.06W, 1%, 0603

Vishay CRCW060340K2FKEA 

24

1

R11 

Res., Chip, 6.04k, 0.06W, 1%, 0603

Vishay CRCW06036K04FKEA 

25

1

R12 

Res., 0.005, 0.25W, 1%, 1206

Vishay Dale WSL-1206-5L000-1% 

26

1

T1 

Transformer, XFMR 

Würth Elektronik 750311591 

27

1

U1 

I.C., LT3748EMS

Linear Tech. Corp. LT3748EMS 

Hardware For Demo Board Only

1

2

E1, E2 

Connector, Banana Jack 

Keystone 575-4 

2

3

E5, E6, E7 

Turret, Testpoint

Mill Max 2501-2-00-80-00-00-07-0 

3

1

JP1 

Headers, Sgl. Row, 3 Pins, 2mm Ctrs. 

Samtec TMM-103-02-L-S 

4

4

MH1, MH2, MH3, MH4 STAND-OFF, NYLON 0.25" tall 

KEYSTONE, 8831(SNAP ON)

5

1

XJP1 

Shunt, 2mm Ctrs.

Samtec 2SN-BK-G 

6

1

FAB, 1860B, Rev 3.PCB

DEMO CIRCUIT 1860B

7

2

STENCILS - TOP & BOTTOM

STENCIL DC1860B

Additional Demo Board Circuit Components

1

0

C1 (Opt)

Cap., Alum 330µ,F 25V, 10%, 25cv330gX

SANYO 25CV330gX 

2

0

C16 (Opt)

Cap., Alum. Elect. 100µF, 63V, ±20%, NipponChemi-Con/JA0 Nippon Chemi-Con EMZA630ADA101MJA0G 

3

0

L2 (Opt)

Inductor, 47µH, IHLP4040

VISHAY IHLP-4040DZ-ER-470-M11 

4

0

T2 (Opt)

Transformer, XFMR 

Würth Elektronik 750311456 

5

0

T3 (Opt)

Transformer, XFMR 

Würth Elektronik 750311604 

6

0

E3, E4 (Opt)

Turret, Testpoint 

Mill Max 2501-2-00-80-00-00-07-0 

Summary of Contents for LT3748

Page 1: ...M Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners PERFORMANCE SUMMARY efficiency small...

Page 2: ...re placed in the output to clamp the output voltage to 52 5V without ex board preload requirement The efficiency is higher than 90 without the preload resistors but the output may exceed 57V under no...

Page 3: ...3 dc1860bfa DEMO MANUAL DC1860B quick start procedure Figure 1 Proper Measurement Equipment Setup Figure 2 Proper Scope Probe Placement for Measuring Input or Output Ripple VOUT GND COUT dc1860b F02...

Page 4: ...dc1860b F03 VIN 15V VIN 13 2V VIN 10V LOAD CURRENT mA 0 50 0 Output Voltage V 52 0 52 5 50 5 51 0 51 5 53 0 600 700 200 100 300 400 500 dc1860b F04 VIN 10V VIN 15V quick start procedure Figure 3 Typi...

Page 5: ...603 Vishay CRCW0603200KFKEA 19 1 R5 Res Chip 36k 0 06W 5 0603 Vishay CRCW060336K0JNEA 20 1 R6 Res Chip 82 5k 0 06W 1 0603 Vishay CRCW060382K5FKEA 21 1 R8 Res Chip 22 0 06W 5 0603 Vishay CRCW060322R0JN...

Page 6: ...RCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SC...

Page 7: ...UIT 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 CI...

Page 8: ...CLUDING 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 C...

Page 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC1860B...

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