background image

6

dc2268abfa

DEMO MANUAL DC2268A-B

parts List

ITEM QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

6

CIN1, CIN2, CIN3, CIN4, CIN5, CIN6

CAP, 1210 22µF 10% 25V X5R

AVX 12103D226KAT2A

2

2

CO1, CO5

CAP, 7343 330µF 20% 6.3V POSCAP

PANASONIC 6TPF330M9L

3

4

CO2, CO3, CO4, CO6

CAP, 1210 100µF 10% 6.3V X5R

AVX 12106D107KAT2A

4

1

C6

CAP, 0603 4.7µF 20% 6.3V X5R

AVX 06036D475MAT2A

5

1

C7

CAP, 0603 47pF 5% 50V C0G / NP0

AVX 06035A470JAT2A

6

2

C8, C14

CAP, 0603 0.1µF 10% 25V X7R

AVX 06033C104KAT2A

7

1

C15

CAP, 0603 33pF 5% 50V C0G

AVX 06035A330JAT2A

8

2

C16, C17

CAP, 0603 10µF 20% 25V X5R

TDK C1608X5R1E106M080AC

9

2

C18, C20

CAP, 0603 22µF 20% 6.3V X5R

TDK C1608X5R0J226M080AC

10

1

L1

IND, 1.0µH

COILCCRAFT XAL5030-102MEC

11

2

R2, R22

RES, 0603 0Ω JUMPER

VISHAY CRCW06030000Z0EA

12

3

R3, R5, R14

RES, 0603 100Ω 5% 0.1W

VISHAY CRCW0603100RJNEA

13

1

R4

RES, 0603 121k 1% 0.1W

VISHAY CRCW0603121KFKEA

14

2

R6, R17

RES, 0603 10k 5% 0.1W

VISHAY CRCW060310K0JNEA

15

1

R7

RES, 0603 13.3k 1% 0.1W

VISHAY CRCW060313K3FKEA

16

1

R9

RES, 0603 0Ω

VISHAY CRCW06030000Z0EA

17

1

R15

RES, 0603 191k 1% 0.1W

VISHAY CRCW0603191KFKEA

18

1

R18

RES, 0603 8.25k 1% 0.1W

VISHAY CRCW06038K25FKEA

19

3

R24, R25, R30

RES, 0603 10Ω 5% 0.1W

VISHAY CRCW060310R0JNEA

20

1

U1

IC, VOLTAGE REGULATOR LGA

LINEAR TECH. LTM4620AEV#PBF

Additional Demo Board Circuit Components

1

0

C1, C2, C3, C4, C5, C9, C10, C11, C12, 

C13

CAP, 0603 OPTION

OPTION

2

0

R1, R8, R10, R11, R12, R13, R16, R19, 

R20, R21, R23, R26, R27, R28, R29

RES, 0603 OPTION

OPTION

3

0

R31, R32

RES, 2512 OPTION

OPTION

Hardware: For Demo Board Only

1

1

J1

CONN., CARD EDGE 1.6mm

SAMTEC MEC2-20-01-L-DV--TR

Summary of Contents for LTM4620A

Page 1: ...le 26A output solution with optional jumper resistors The board allows the user to program how its output ramps up and down through L LT LTC LTM Linear Technology the Linear logo and Burst Mode are re...

Page 2: ...5 Optional LTM4620A can be synchronized to an exter nal clock signal Remove R2 and apply a clock signal 0 5V square wave to MODE PLLIN pin 6 Optional LTM4620A can be configured for a 2 phase single o...

Page 3: ...268A B Table 2 DC2268A Demo Circuit DEMO BOARD NUMBER MODULE REGULATOR ON THE BOARD OUTPUT CURRENT DC2268A A LTM4620 13A 13A DC2268A B LTM4620A 13A 13A DC2268A C LTM4628 8A 8A DC2268A D LTM4630 18A 18...

Page 4: ...fficiency on Channel 2 VOUT2 5V fSW 750kHz Channel 1 Disabled ILOAD A 0 EFFICICENCY 100 95 90 85 80 75 8 4 12 dc2268ab F03 13 6 2 10 7 3 11 5 1 9 VIN 12V fSW 750kHz 89 1 75 2 84 6 87 5 90 4 91 1 91 8...

Page 5: ...6 5V OUTPUT 20MHz BW 20mV DIV 6 5A TO 13A LOAD STEP Figure 7 Thermal Performance at VIN 12V VOUT1 3 3V 8A VOUT2 5V 8A fSW 750kHz TA 23 C 200LFM Airflow Quick Start Procedure Figure 6 Measured Channel...

Page 6: ...ND 1 0 H COILCCRAFT XAL5030 102MEC 11 2 R2 R22 RES 0603 0 JUMPER VISHAY CRCW06030000Z0EA 12 3 R3 R5 R14 RES 0603 100 5 0 1W VISHAY CRCW0603100RJNEA 13 1 R4 RES 0603 121k 1 0 1W VISHAY CRCW0603121KFKEA...

Page 7: ...1630 McCarthy Blvd LTC CONFIDENTIAL FOR CUSTOMER USE ONLY CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS TH...

Page 8: ...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 INCIDENTAL OR...

Reviews: