RT5744/RT5746

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DS5744/DS5746-00

November

2023

www.richtek.com

11

Table 1. Recommended External Components for 4A/6A Maximum Load Current

Component

Description

Vendor P/N

L1

330nH, case size

DFE201612E-R33M=P2 (Murata)

470nH, case size

DFE201612E-R47M=P2 (Murata)

C2

4.7

F, 10V, X5R, 0402

GRM155R61A475MEAA (Murata)

C3(1)

100nF, 6.3V, X5R, 0201

GRM033R60J104KE19D (Murata)

C4

22

F x 2, 6.3V, X5R, 0603

GRM188R60J226MEA0D (Murata)

C1608X5R0J226M080AC (TDK)

L2(3)

330nH, 4x4 size (12A, 10.8m

)

CMME041B-R33MS (Cyntec)

220nH, 4x4 size (13A, 7.2m

)

CMME041B-R22MS (Cyntec)

C5

22

F, 6.3V, X5R, 0603

GRM188R60J226MEA0D (Murata)

C6(1)

100nF, 6.3V, X5R, 0201

GRM033R60J104KE19D (Murata)

C7(3)

22

F x 3, 6.3V, X5R, 0603

GRM188R60J226MEA0D (Murata)

C1608X5R0J226M080AC (TDK)

47

F x 3, 6.3V, X5R, 0603

GRM188R60J476ME01 (Murata)

Note:

(1) The decouple capacitors C3 and C6 are recommended to reduce any high frequency component on VIN bus. C3

and C6 are optional and used to filter any high frequency component on VIN bus.

(2) All the input and output capacitors are the suggested values, referring to the effective capacitances, subject to

any de-rating effect, like a DC bias.

(3) For general purpose application, L2 = 330nH and C7 = 22

F x 3pcs are recommended. For fast load transient

requirement, it is recommended to use L2 = 220nH and C7 = 47

F x 3pcs.