Datasheet

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Schematic, Bill of Materials, and Reference

6.2 Bill of Materials

Table 5. Bill of Materials

Count RefDes Value Description Size Part Number Manufacturer

1 C11 1 µF Capacitor, ceramic, 16 V, X7R, 10% 0603 GRM188R71C105KA12 Murata

4 C1-2 C4- 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

2 C9-10 0.01 µF 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 6.9 × 7.2 SPM6530-2R2M TDK

shielded, ±30%, 4.3 A mm

1 L2 1.5 µH Inductor, power line, magnetic 6.9 × 7.2 SPM6530-1R5M TDK

shielded, ±30%, 4.1 A mm

1 R1 73.2 kΩ 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 kΩ Resistor, chip, 1/16W, 1% 0603 STD STD

2 R2 R4 22.1 kΩ Resistor, chip, 1/16W, 1% 0603 STD STD

1 R3 21.5 kΩ Resistor, chip, 1/16W, 1% 0603 STD STD

2 R5-6 0 Ω Resistor, chip, 1/16W, 1% 0603 STD STD

0 R7-8 open Resistor, chip, 1/16W, 1% 0603 STD STD

0 R9-10 open Resistor, chip, 1/16W, 1% 0603 STD STD

1 U1 TPS542951P IC, 2A/3A, dual output fully TSSOP TPS542951PWP TI

WP synchronous 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.

6.3 Reference

1. TPS542951, 3-A Dual Channel Synchronous Step-Down Switcher With Integrated FETs data sheet

(SLVSBI4)

SLVU767–August 2012 TPS542951 Dual Channel SWIFT™ Evaluation Module

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