Table of Contents
Advertisement
RTKA211405DE0000BU Evaluation Board Manual
2.
Board Design
2.1
Layout Guidelines
The printed circuit board (PCB) layout is critical for the proper operation of RAA211405. The following guidelines
are recommended to achieve optimal performance.
▪ Use a multilayer PCB structure to achieve optimized performance. The evaluation board
RTKA211405DE0000BU uses a 2-layer PCB with 1oz copper and the bottom layer as ground.
▪ Place the input capacitor as close as possible to the IC. The input capacitor is the most important component
for any step-down converter and should be the first component to be placed in the layout.
▪ The copper area of the SW NODE should not be more than needed. Place the inductor close to the regulator.
▪ Place an output capacitor close to the inductor.
▪ Place and route the power component to keep the power loop area as minimum and short as possible.
▪ Keep all the power components on the same side of the PCB.
▪ Include thermal vias as necessary to improve heat dissipation.
2.2
Schematic Diagram
VIN
UNNAMED_2_SMCAP_I83_A
J1
GND
GND
J2
R16UZ0071EU0101 Rev.1.01
Dec 1, 2023
Figure 4. RTKA211405DE0000BU Evaluation Board (Top)
U1
5
1
SW
VOUT
2
GND
4
3
VIN
EN
RAA2114054GP3#JA0
R2
UNNAMED_2_SMRES_I18_B
1M
Figure 5. RTKA211405DE0000BU Schematic
TP2
VSW
UNNAMED_2_POWERIND_I71_AUNNAMED_2_POWERIND_I71_B
TP1
GND
TP3
EN
VOUT
L
J3
10UH
GND
J4
Page 5
Advertisement
Table of Contents
