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dc2268aif

DEMO MANUAL DC2268A-I

QUICK START PROCEDURE

Figure 7. Thermal Performance at V

IN

 = 12V, V

OUT1

 = 3.3V/11A, V

OUT2

 = 1.5V/11A, 

f

SW

 = 600kHz, T

A

 = 23°C, No Forced Airflow

Figure 8. Thermal Performance at V

IN

 = 12V, V

OUT1

 = 3.3V/19A, V

OUT2

 = 1.5V/19A, 

f

SW

 = 600kHz, T

A

 = 23°C, 400LFM Airflow

Summary of Contents for DC2268A-1

Page 1: ...a single 50A output solution with optional jumper resistors The board allows the user to program how its output ramps up and down L LT LTC LTM Linear Technology the Linear logo µModule and Burst Mode are registered trademarks of Analog Devices Inc All other trademarks are the property of their respective owners BOARD PHOTO through the TRACK SS pin Remote output voltage sens ing is available for im...

Page 2: ...k signal 0V 5V square wave to MODE PLLIN pin 6 Optional LTM4650A 1 can be configured for a 2 phase single output at up to 36A on DC2268A I Install 0Ω resistors on R26 R27 R28 R29 R32 and remove R14 R18 R30 Output voltage is set by R7 based on equation VOUT 0 6V 1 60 4k R7 PERFORMANCE SUMMARY Table 1 PARAMETER CONDITIONS VALUE Input Voltage Range 4 5V 16V Output Voltage VOUT1 VIN 4 5 16V IOUT1 0A 2...

Page 3: ...annel 1 VOUT1 3 3V fSW 600kHz Channel 2 Disabled Figure 4 Measured Efficiency on Channel 2 VOUT2 1 5V fSW 600kHz Channel 1 Disabled IO LOAD CURRENT 0 60 EFFICIENCY 65 70 75 80 85 90 100 95 5 10 15 20 25 2268ai F03 VIN 12V VIN 5V IO LOAD CURRENT 0 60 EFFICIENCY 65 70 75 80 85 90 100 95 5 10 15 20 25 2268ai F04 VIN 12V VIN 5V ...

Page 4: ...Figure 5 Measured Channel 1 12 5A to 18 75A Load Transient VIN 12V VOUT1 3 3V Figure 6 Measured Channel 12 5A to 18 75A Load Transient VIN 12V VOUT2 1 5V 3 3VOUT 20MHz BW 100mV DIV 12 5A to 18 75A LOAD STEP 1 5VOUT 20MHz BW 50mV DIV 12 5A to 18 75A LOAD STEP ...

Page 5: ...I QUICK START PROCEDURE Figure 7 Thermal Performance at VIN 12V VOUT1 3 3V 11A VOUT2 1 5V 11A fSW 600kHz TA 23 C No Forced Airflow Figure 8 Thermal Performance at VIN 12V VOUT1 3 3V 19A VOUT2 1 5V 19A fSW 600kHz TA 23 C 400LFM Airflow ...

Page 6: ...T 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 2 R10 R16 RES 0603 5k 1 0 1W VISHAY CRCW0605K00FKEA 18 1 R...

Page 7: ...e 23 2017 1 1 HIGH EFFICIENCY STEP DOWN MODULE N A LTM4620 LTM4620A LTM4628 Simon T REGULATOR C PROJECTS LTM4650A 1 DC2268A I DC2268A 4_20170623 DSN LTM4630 LTM4630 1 LTM4631 SIZE DATE IC NO REV SHEET OF TITLE APPROVALS PCB DES APP ENG TECHNOLOGY Fax 408 434 0507 Milpitas CA 95035 Phone 408 432 1900 1630 McCarthy Blvd LTC CONFIDENTIAL FOR CUSTOMER USE ONLY CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MAD...

Page 8: ... 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 CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the goods Due to the open construction of the product i...

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