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dc2469af

DEMO MANUAL DC2469A

PARTS LIST

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

42

1

R23

Res, Chip 2.49M 0.1W 1% 0603

Vishay, CRCW06032M49FKEA 

43

1

R21

Res, Chip 10k 0.1W 1% 0603

Vishay, CRCW060310K0FKEA 

44

6

R24, R27, R32, R33, R36, R37

Res, Jumper, Chip, 0Ω 0603

Vishay, CRCW06030000Z0EA

45

1

R34 

Res, Jumper, Chip, 0Ω 0805

Vishay, CRCW08050000Z0EA

46

1

U1 

IC, Buck Regulator QFN (40) (UJ)

Analog Device, LT8603EUJ 

Additional Demo Board Circuit Components

1

0

C4, C5

Cap, 0402

2

0

C14, C16, C28, C36, C37, C41, C43

Cap, 0603

3

0

C33

Cap, 1206

4

0

Q2

NPN. MMBT3904, SOT-23

5

0

R10, R20, R25, R26, R29, R30, R31, 

R35, R38, R39

Res, 0603

6

0

R28

Res, 1210

7

0

U2

IC, LTC6908CS6-1 TSOT-23-6

Analog Device, LTC6908CS6-1#PBF

Hardware: For Demo Board Only

1

20

E1 to E20

Turret, Testpoint 

Mill Max, 2501-2-00-80-00-00-07-0 

2

5

JP1, JP2, JP3, JP4, JP5

Headers, 3 Pins 2mm Ctrs

Wurth Elektronik, 62000311121

3

5

XJP1, XJP2, XJP3, XJP4, XJP5

Shunt, 2mm Ctrs

Samtec, 2SN-BK-G 

4

4

MH1 to MH4

STAND-OFF, NYLON 0.25" Tall (SNAP ON)

Wurth Electronik, 702931000

Содержание LINEAR DC2469A

Страница 1: ...ks are the property of their respective owners PERFORMANCE SUMMARY Many popular features such as soft start cycle by cycle current limit power good for each of the four channels are packed in the 40 l...

Страница 2: ...regulators channels 1 2 as well Check if the EN UVLO is set in correct position Check if too much load is applied to VOUT4 SEPIC does not have overcurrent or short circuit protection capability NOTE...

Страница 3: ...d 0 at R10 the circuit is set in pulse skipping mode The circuit runs in full frequency with lower load cur rent in this mode To synchronize to an external clock apply the external clock to the SYNC t...

Страница 4: ...4 dc2469af DEMO MANUAL DC2469A Figure 1 Proper Measurement Equipment Setup QUICK START PROCEDURE...

Страница 5: ...UAL DC2469A Figure 2 Proper Scope Probe Placement for Measuring Input or Output Ripple Figure 3 Thermal Image Top View IOUT1 1A IOUT2 1A IOUT3 1A TA 25 C FSW 2MHz A VIN 6V B VIN 24V QUICK START PROCED...

Страница 6: ...urst Mode OPERATION PULSE SKIPPING MODE LOAD CURRENT A 0 0 3 0 5 0 8 1 1 3 1 5 1 8 2 2 3 2 5 30 40 50 60 70 80 90 EFFICIENCY Efficiency VOUT 8V DC2469A F04b Figure 4 Load Transient from 50mA to 450mA...

Страница 7: ...C0G 2 2pF 50V 0 25pF 0603 Murata GRM1885C1H2R2CA01D 19 1 C30 Cap C0G 4 7pF 50V 0 25pF 0603 Murata GRM1885C1H4R7CA01D 20 1 C31 Cap C0G 22pF 50V 5 0603 Murata GRM1885C1H220JA01D 21 2 C34 C38 Cap X7R 10...

Страница 8: ...ice LT8603EUJ Additional Demo Board Circuit Components 1 0 C4 C5 Cap 0402 2 0 C14 C16 C28 C36 C37 C41 C43 Cap 0603 3 0 C33 Cap 1206 4 0 Q2 NPN MMBT3904 SOT 23 5 0 R10 R20 R25 R26 R29 R30 R31 R35 R38 R...

Страница 9: ...1 R38 OPT C27 4 7 F 50V 1206 E4 GND L1 0 0805 C37 OPT C15 47nF X7R R35 OPT 0 R3 24 9k 1 R13 200k 1 E17 SYNC C13 2 2 F 0402 10V C23 2 2 F 0402 10V C43 OPT C12 47 F 10V X5R 1206 R30 OPT JP5 VOUT2 VOUT1...

Страница 10: ...disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to prom...

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