Dual-Phase, Parallelable, Average-Current-Mode

Controllers

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21

Table 1. Component List

DESIGNATION

QTY

DESCRIPTION

C1, C2

2

47µF,16V X5R input-filter capacitors, TDK C5750X5R1C476M

C3–C11

9

22µF, 16V input-filter capacitors, TDK C4532X5R1C226M

C12, C13

2

0.47µF, 16V capacitors, TDK C1608X5R1A474K

C14, C15

2

100µF, 6.3V output-filter capacitors, Murata GRM44-1X5R107K6.3

C16–C24, C33

10

270µF, 2V output-filter capacitors, Panasonic EEFUE0D271R

C25

1

4700pF, 16V X7R capacitor, Vishay-Siliconix VJ0603Y471JXJ

C26, C28, C30

3

470pF, 16V capacitors, Murata GRM1885C1H471JAB01

C27, C29

2

0.01µF, 50V X7R capacitors, Murata GRM188R71H103KA01

C31

1

4.7µF, 16V X5R capacitor, Murata GRM40-034X5R475k6.3

C32, C34, C39

3

0.1µF, 16V X7R capacitors, Murata GRM188R71C104KA01

D1, D2

2

Schottky diodes, ON Semiconductor MBRS340T3

D3, D4

2

Schottky diodes, ON Semiconductor MBR0520LT1

L1, L2

2

0.6µH, 27A inductors, Panasonic ETQP1H0R6BFX

Q1, Q3

2

Upper power MOSFETs, Vishay-Siliconix Si7860DP

Q2, Q4

2

Lower power MOSFETs, Vishay-Siliconix Si7886DP

R1

1

2.2

Ω ±1% resistor

R2, R3

4

Current-sense resistors, use two 2.7m

Ω resistors in parallel, Panasonic ERJM1WSF2M7U

R4

1

7.5k

Ω ±1% resistor

R5, R6

2

1k

Ω ±1% resistors

R7

1

4.99k

Ω ±1% resistor

R8, R9

2

37.4k

Ω ±1% resistors

Table 2. Component Suppliers

SUPPLIER

PHONE

FAX

WEBSITE

Murata

770-436-1300

770-436-3030

www.murata.com

ON Semiconductor

602-244-6600

602-244-3345

www.on-semi.com

Panasonic

714-373-7939

714-373-7183

www.panasonic.com

TDK

847-803-6100

847-390-4405

www.tcs.tdk.com

Vishay-Siliconix

1-800-551-6933

619-474-8920

www.vishay.com