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11

DEMO MANUAL DC2881A-A

Rev. 0

  If the write is successful, you will see the following 

message:

 

LTpowerPlay QUICK START PROCEDURE

e.  You can save the changes into the NVM. In the tool bar, 

click RAM to NVM button, as following

 
f.  Save the demo board configuration to a (*.proj) file. 

Click the Save icon and save the file. Name it whatever 

you want.

PARTS LIST

ITEM

QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Circuit Components

1

3

C1, C3, C186

CAP., 2.2µF, X5R, 25V, 10%, 0603

MURATA, GRM188R61E225KA12D

2

4

C2, C50, C217, C220

CAP., 0.1µF, X7R, 25V, 20%, 0603

AVX, 06033C104MAT2A

3

3

C4, C6, C189

CAP., 4.7µF, X5R, 10V, 10%, 0603

AVX, 0603ZD475KAT2A

4

3

C7, C205, C206

CAP., 1µF, X5R, 6.3V, 20%, 0603

AVX, 06036D105MAT2A

5

10

C8, C10, C11, C212, C213, C214, 

C215, C216, C218, C219

CAP., 22µF, X7R, 16V, 20%, 1206

TAIYO YUDEN, EMK316BB7226ML-T

6

3

C12, C193, C221

CAP., 100pF, X7R, 25V, 5%, 0603

AVX, 06033C101JAT2A

7

2

C13, C222

CAP., 6800pF, X7R, 50V, 10%, 0603

MURATA, GRM188R71H682KA01D

8

2

C14, C17

CAP., 0.01µF, X7R, 25V, 10%, 0603, AEC-Q200

AVX, 06033C103K4Z2A

9

1

C15

CAP., 1µF, X5R, 16V, 10%, 0603

AVX, 0603YD105KAT2A

10

2

C31, C224

CAP., 10µF, X7R, 25V, 10%, 1210

AVX, 12103C106KAT2A

11

1

C34, C35

CAP., 4.7µF, X5R, 16V, 20%, 1210

AVX, 1210YD475MAT2A

12

2

C48, C194

CAP., 10µF, X7R, 25V, 10%, 1206

AVX, 12063C106KAT2A

13

4

C183, C187, C207, C208

CAP., 47pF, C0G, 50V, 5%, 0603

AVX, 06035A470JAT2A

14

2

C188, C190

CAP., 1µF, X7R, 25V, 10%, 0805, AEC-Q200

TDK, CGA4J3X7R1E105K125AB

15

1

C191

CAP., 5.6pF, C0G/NP0, 50V, ±0.25pF, 0603

AVX, 06035A5R6CAT2A

16

1

C209

CAP., 10µF, X5R, 16V, 10%, 0603

AVX, 0603YD106KAT2A

17

2

C225, C226

CAP., 3300pF, X7R, 50V, 10%, 0603

AVX, 06035C332KAT2A

18

2

CIN1, CIN2

CAP., 270µF, ALUM, 16V, 20%, SMD 8 × 11.9mm, E12

PANASONIC, 16SVPC270M

19

8

COUT1, COUT2, COUT5, COUT6, 

COUT40, COUT41, COUT42, 

COUT43

CAP., 47µF, X7R, 6.3V, 10%, 1210, AEC-Q200,  

NO SUBS ALLOWED

MURATA, GCM32ER70J476KE19L

20

4

COUT3, COUT4, COUT7, COUT8

CAP., 470µF, TANT, POSCAP, 2.5V, 20%, 7343, TPF SERIES

PANASONIC, ETPF470M5H

21

2

L1, L2

IND., 215nH, PWR, FERRITE, 10%, 61A, 0.29mΩ,  

10.4 × 8.0mm SMD

PULSE, PA2607.211NL

22

1

L4

IND., 4.7µH, PWR, 20%, 5.9A, 40mΩ, 5.48 × 5.28mm SMD, 

XAL5030, AEC-Q200

COILCRAFT, XAL5030-472MEB

23

2

Q1, Q2

XSTR., PNP, 40V, 0.2A, SOT-323, AEC-Q101

DIODES INC., MMST3906-7-F

Summary of Contents for DC2881A-A

Page 1: ...er to the LTC3884 1 and LTC7050 data sheet for more detailed information DC2881A A powers up to default settings and produces power based on configuration resistors or with the All registered trademar...

Page 2: ...t the loads within the operating range and observe the output voltage regulation ripple voltage and other parameters 7 Connect the dongle and control the output voltages from the GUI See LTpowerPlay Q...

Page 3: ...rate of load current will follow the slew rate of EXT PULSE lin early Refer to the table in the schematic file to optimally route the voltage sense points during load transient test It is highly recom...

Page 4: ...ors R196 and R197 removed To measure the efficiency of LTC7050 refer to the setup in Figure 6 In this setup the controller SPS and IREF biases are provided externally so as to not load the 12V input A...

Page 5: ...5 DEMO MANUAL DC2881A A Rev 0 Figure 5 Measuring Setup for DC2881 Efficiency OUTPUT AND ONBOARD E LOAD CONFIGURATION IIN POWER SUPPLY IOUT1 LOAD1 VOUT1 VIN1 dc2881a a F05...

Page 6: ...UAL DC2881A A Rev 0 Figure 6 Measuring Setup for LTC7050 Efficiency OUTPUT AND ONBOARD E LOAD CONFIGURATION VOUT1 VIN1 IIN POWER SUPPLY IOUT1 LOAD1 POWER SUPPLY POWER SUPPLY POWER SUPPLY VDRV IDRV dc2...

Page 7: ...0 VOUT1 2 Efficiency vs Load at VIN 12V fS 500kHz 1 Phase VOUT 1V VOUT 1 8V LOAD CURRENT A 0 3 6 9 12 15 18 21 24 27 30 70 75 80 85 90 95 100 EFFICIENCY dc2881a a F07 L PA2607 211NL 215nH 0 29m L PA26...

Page 8: ...1 30A Figure 12 VOUT2 Voltage Ripple 17 4mV at VIN 12V VOUT2 1V IOUT2 30A Figure 13 Thermal at VIN 12V VOUT1 1V IOUT1 30A VOUT2 1V IOUT2 30A TA 22 C No Airflow 2 s DIV VOUT1 20MHz BW 20mV DIV dc2881a...

Page 9: ...ed at a later time LTpowerPlay provides unprecedented diagnostic and debug features It becomes a valuable diagnostic tool during board bring up to program or tweak the power management scheme in a sys...

Page 10: ...nds in the lower left hand corner confirming that LTC3884 1 is communicating c In the Toolbar click the R RAM to PC icon to read the RAM from the LTC3884 1 This reads the configuration from the RAM of...

Page 11: ...01 F X7R 25V 10 0603 AEC Q200 AVX 06033C103K4Z2A 9 1 C15 CAP 1 F X5R 16V 10 0603 AVX 0603YD105KAT2A 10 2 C31 C224 CAP 10 F X7R 25V 10 1210 AVX 12103C106KAT2A 11 1 C34 C35 CAP 4 7 F X5R 16V 20 1210 AVX...

Page 12: ...1 4W 1206 AEC Q200 VISHAY CRCW1206402RFKEA 35 2 R85 R200 RES 27 4 1 1W 2512 AEC Q200 PANASONIC ERJ1TNF27R4U 36 1 R160 RES 2 1 1 10W 0603 VISHAY CRCW06032R00FNEA 37 2 R161 R170 RES 43 2k 1 1 10W 0603 A...

Page 13: ...0 14 1 D8 DIODE SCHOTTKY 20V 0 5A SOD 882 LEADLESS NEXPERIA PMEG2005AEL 315 15 0 D9 DIODE OPTION SCHOTTKY POWERDI 123 16 0 R14 R20 R22 R23 R25 R26 R27 R28 R31 R32 R35 R36 R37 R38 R39 R40 R42 R43 R45 R...

Page 14: ...35 E36 E37 E38 E39 E40 E41 TEST POINT TURRET 0 094 MTG HOLE PCB 0 062 THK MILL MAX 2501 2 00 80 00 00 07 0 2 6 J1 J2 J3 J4 J5 J6 EVAL BOARD STUD HARDWARE SET 10 32 ANALOG DEVICES INC 720 0010 3 3 J7 J...

Page 15: ...TITLE SCHEMATIC APPROVALS PCB DES APP ENG SIZE SCHEMATIC NO AND REVISION CUSTOMER NOTICE THIS CIRCUIT IS PROPRIETARY TO ANALOG DEVICES AND SUPPLIED FOR USE WITH ANALOG DEVICES PARTS SKU NO IC NO ANALO...

Page 16: ...ITH PSM DC2881A A B C 710 DC2881A A B C _REV03 N A Monday December 20 2021 Variant Name DATE SHEET OF TITLE SCHEMATIC APPROVALS PCB DES APP ENG SIZE SCHEMATIC NO AND REVISION CUSTOMER NOTICE THIS CIRC...

Page 17: ...E DRIVE www analog com ANALOG DEVICES AHEAD OF WHAT S POSSIBLE TM SANTA CLARA CA 95054 3 3 LT Y T LTC7050X LTC3884RHE 1 HIGH EFFICIENCY SYNCHRONOUS BUCK CONVERTER WITH PSM DC2881A A B C 710 DC2881A A...

Page 18: ...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 promp...

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