Texas Instruments TPS54494 Evaluation Module TPS54494EVM-057 TPS54494EVM-057 Datenbogen

1

C11

1 µF

Capacitor, ceramic, 16 V, X7R, 10%

0603

GRM188R71C105KA12

Murata

4

C1-2 C4-5

10 µF

Capacitor, ceramic, 25 V, X7R, 10%

1206

GRM31CR71E106KA12

Murata

0

C12-13

open

Capacitor, ceramic, 50 V, X7R, 10%

0603

GRM188R71H104KA93

Murata

4

C14-17

22 µF

Capacitor, ceramic, 6.3 V, X7R, 10%

1206

GRM31CR70J226KE19

Murata

0

C18-19

open

Capacitor, ceramic, 6.3 V, X7R, 10%

1206

0

C20-21

open

Capacitor, ceramic, 50 V, X7R, 10%

0603

Std

Std

4

C3 C6-8

0.1 µF

Capacitor, ceramic, 50 V, X7R, 10%

00603

GRM188R71H104KA93

Murata

0

C9-10

open

Capacitor, ceramic, 50 V, X7R, 10%

0603

Std

Std

0

D1-2

open

Diode, Schottky

SMA

STD

STD

1

L1

2.2 µH

Inductor, power line, magnetic shielded,

6.9 × 7.2

SPM6530-2R2M

TDK

±30%, 4.3A

mm

1

L2

1.5 µH

Inductor, power line, magnetic shielded,

6.9 × 7.2

SPM6530-1R5M

TDK

±30%, 4.1A

mm

1

R1

73.2 k

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

2

R11-12

0

Ω

Resistor, chip, 1/16W, 5%

0603

STD

STD

2

R13-14

10.0 k

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

2

R2 R4

22.1 k

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

1

R3

21.5 k

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

2

R5-6

0

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

2

R7-8

100 k

Ω

Resistor, chip, 1/16W, 1%

0603

STD

STD

0

R9-10

open

Resistor, chip, 1/16W, 1%

0603

STD

STD

1

U1

TPS54494PW

IC, 4A/2A, dual output fully synchronous

TSSOP

TPS54494PWP

TI

P

buck converter with integrated FET

C14-C19 must be replaced with capacitors which have a higher voltage rating when the output voltage is
set above 4V.

1. TPS54494, 3-A Dual Channel Synchronous Step-Down Switcher With Integrated FETs data sheet

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21

SLVU677 – August 2012

Copyright © 2012, Texas Instruments Incorporated