Linear Technology LTC3118 Demo Manual Download Page 6

6

dc2045af

DEMO MANUAL DC2045A

parts List

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

2

C1, C4

CAP., 22µF, X7R, 25V, 20%, 1812

TDK, C4532X7R1E226M250KC

2

3

C2, C5, C9

CAP., 1µF, X7R, 25V, 10%, 0603

TDK, C1608X7R1E105K080AB

3

0

C3, C6       (OPT)

CAP., ALUM., RADIAL, 150µF, 50V, 20%

PANASONIC, EEU-FM1H151

4

2

C7, C8

CAP., 47µF, X5R, 10V, 20%, 1812

TDK, C4532X5R1A476M280KA

5

1

C10

CAP., 1800pF, C0G, 50V, 5%, 0603

TDK, CGJ3E2C0G1H182J080AA

6

1

C11

CAP.,  22PF, NPO, 25V, 10%,  0603

KEMET, C0603C220K3GACTU

7

2

C12, C13

CAP., CER 0.1µF, 25V, 10%, X7R, 0603

TDK, C1608X7R1E104K

8

2

C14, C17

CAP., CER 0.047µF, 50V, 10%, X7R, 0603

TDK, C1608X7R1H473K080AA

9

2

C15, C16

CAP., 0.01µF, X7R, 25V, 10%, 0603

TDK, C1608X7R1E103K080AA

10

1

C18

CAP., 4.7µF, X5R, 6.3V, 20%, 0603

TDK, C1608X5R0J475M080AB

11

0

C19, C20, C21 (OPT)

CAP., OPTION, 0603                

12

1

D1

DIODE, SCHOTTKY, 30V, 0.2A, SOD-523F

FAIRCHILD SEMI., BAT54XV2

13

1

L1

INDUCTOR, PWR., SHIELED, 3.3µH. XAL 40xx Series

COILCRAFT, XAL4030-332MEC

14

1

R1

RES., 402k, 1/16W, 1%, 0402 

VISHAY, CRCW0402402KFKED

15

1

R2

RES., 100k, 1/16W, 1%, 0402

VISHAY, CRCW0402100KFKED

16

1

R3

RES., 40.2k, 1/16W, 1%, 0402 

VISHAY, CRCW040240K2FKED

17

5

R4, R6, R8, R9, R10

RES., 1M, 1/16W, 1%, 0402

VISHAY, CRCW04021M00FKED

18

1

R5

RES., 715k, 1/16W, 1%, 0402 

VISHAY, CRCW0402715KFKED

19

1

R7

RES., 374k, 1/16W, 1%, 0402 

VISHAY, CRCW0402374KFKED

20

1

R11

RES., 49.9Ω, 1/16W, 1%, 0402 

VISHAY, CRCW040249R9FKED

21

0

R12

RES., OPTION, 0402                                         

22

1

U1

I.C.,18V, 2A BUCK-BOOST DC/DC CONVERTER WITH 

LOW-LOSS DUAL INPUT POWERPATH

LINEAR TECHNOLOGY, LTC3118EUFD*PBF

23

12

E1-E12

TP, TURRET, 0.094", MTG. HOLE

MILL-MAX, 2501-2-00-80-00-00-07-0      

24

2

JP1, JP2

CONN., HEADER, 1

×

3, 2mm

SAMTEC, TMM-103-02-L-S

25

2

XJP1-XJP2

SHUNT, 2mm

SAMTEC, 2SN-BK-G

26

4

STAND OFF

STANDOFF, NYLON, SNAP-ON, 0.625" 

KEYSTONE, 8834 (SNAP ON)

27

1

PCB, DC2045A

DEMO CIRCUIT 2045A-2

28

2

STENCILS, DC2045A (TOP & BOTTOM)

STENCILS,  DC2045A-2 - TOP & BOTTOM

Summary of Contents for LTC3118

Page 1: ...ables Burst Mode operation which improves efficiency at light load L LT LTC LTM Burst Mode Linear Technology and the Linear logo are registered trademarks and PowerPath is a trademark of Linear Techno...

Page 2: ...IXED FREQ Figure 1 Typical Efficiency as a Function of Input Voltage and Load Current Figure 3 Transitioning from VIN1 to VIN2 and Back in PRIORITY Mode Operation with VIN2 at 14V Figure 2 Ideal Diode...

Page 3: ...A Quick Start Procedure Figure 4 100mA to 600mA Load Transient with VIN1 3 5V in Fixed Frequency Mode OUTPUT VOLTAGE OUTPUT CURRENT Figure 5 50mA to 600mA Load Transient with VIN1 3 5V in Burst Mode O...

Page 4: ...rthanVOUT AsVIN1fallsbelowVOUTthe input current may increase to the maximum average inductor current depending on the load which will then limit the load current and the output voltage 7 TurnoffPS1and...

Page 5: ...5 dc2045af DEMO MANUAL DC2045A Quick Start Procedure PS2 PS1 AM2 AM3 VM2 VM1 VM3 10k 10k AM1 LOAD PGD V2GD V1GD Figure 6 Measurement Setup...

Page 6: ...SCHOTTKY 30V 0 2A SOD 523F FAIRCHILD SEMI BAT54XV2 13 1 L1 INDUCTOR PWR SHIELED 3 3 H XAL 40xx Series COILCRAFT XAL4030 332MEC 14 1 R1 RES 402k 1 16W 1 0402 VISHAY CRCW0402402KFKED 15 1 R2 RES 100k 1...

Page 7: ...gy Corporation is believed to be accurate and reliable However noresponsibilityisassumedforitsuse LinearTechnologyCorporationmakesnorepresenta tion that the interconnection of its circuits as describe...

Page 8: ...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...

Page 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC2045A...

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