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dc2055afa

DEMO MANUAL DC2055A

LOAD CURRENT (A)

0

35

30

25

20

15

10

5

0

60

100

20

40

80

120

CHANNEL CURRENT (A)

CHANNEL 1

CHANNEL 2

CHANNEL 3

CHANNEL 4

V

IN

 = 12V

V

OUT

 = 1.0V

f

SW

 = 400kHz

LOAD CURRENT (A)

0

80

EFFICIENCY (%) 85

90

95

20

40

60

80

100

120

V

IN

 = 12V

V

OUT

 = 1.0V

f

SW

 = 400kHz

QUICK START PROCEDURE

Figure 3. Efficiency vs Load Current

Figure 5. Current Sharing vs Load Current

Figure 6. Output Voltage Ripple at V

IN

 = 12V, V

OUT

 = 1.0V, 

I

OUT

 = 120A, f

SW

 = 400kHz

Figure 7. Transient Performance at V

IN

 = 12V, V

OUT

 = 1.0V, 

I

OUT

 = 0A to 30A, f

SW

 = 400kHz

Figure 4. Thermal Performance at V

IN

 = 12V, V

OUT

 = 1.0V, 

I

OUT

 = 120A, 200LFM Forced Air Flow

V

OUT

 (20MHz BW) [20mV/DIV]

V

OUT

 (20MHz BW) [50mV/DIV]

0A TO 30A  

LOAD STEP

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Summary of Contents for DC2055A

Page 1: ...LTC LTM Linear Technology the Linear logo and Burst Mode are registered trademarks of Linear Technology Corporation All other trademarks are the property of their respective owners PERFORMANCE SUMMARY...

Page 2: ...per output voltages VOUT1 should be 1 0V 2 5 Once the proper output voltages are established ad just the loads within the operating range and observe the output voltage regulation ripple voltage and o...

Page 3: ...O MANUAL DC2055A QUICK START PROCEDURE VOUT GND COUT Figure 1 Proper Measurement Equipment Setup Figure 2 Measuring Output Voltage Ripple Downloaded from Arrow com Downloaded from Arrow com Downloaded...

Page 4: ...URE Figure 3 Efficiency vs Load Current Figure 5 Current Sharing vs Load Current Figure 6 Output Voltage Ripple at VIN 12V VOUT 1 0V IOUT 120A fSW 400kHz Figure 7 Transient Performance at VIN 12V VOUT...

Page 5: ...CAP NPO 220pF 25V 10 0603 AVX 06033A221KAT2A 15 3 C13 C22 C56 CAP X5R 1 F 25V 10 0603 AVX 06033D105KAT2A 16 2 C14 C60 CAP X5R 4 7 F 16V 10 0805 TDK C2012X5R1E475K 17 4 C31 C32 C35 C36 CAP X5R 0 22 F 1...

Page 6: ...80 00 00 07 0 39 6 J1 J2 J3 J4 J14 J16 STUD TESTPIN PEM KFH 032 10 40 12 J1 J4 J14 J16 X2 NUT BRASS 10 32 ANY 10 32 41 6 J1 J4 J14 J16 RING LUG 10 KEYSTONE 8205 10 42 6 J1 J4 J14 J16 WASHER TIN PLATE...

Page 7: ...AT MEETS CUSTOMER SUPPLIED SPECIFICATIONS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT...

Page 8: ...REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFOR...

Page 9: ...H LINEAR TECHNOLOGY PARTS SCALE NONE www linear com 2 Tuesday November 19 2013 3 3 HIGH EFFICIENCY HIGH CURRENT POLYPHASE SYNCHRONOUS HAORAN W B LTC3875EUJ DEMO CIRCUIT 2055A SIZE DATE IC NO REV SHEET...

Page 10: ...Y 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...

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