SLVS632E – JANUARY 2006 – REVISED SEPTEMBER 2013
0.110
0.220
0.080
0.050
0.013 DIA 4 PL
0.118
0.040
0.098
All dimensions in inches
Figure 10. TPS5430 Land Pattern
Application Circuits
shows the schematic for a typical TPS5430 application. The TPS5430 can provide up to 3-A output
current at a nominal output voltage of 5 V. For proper thermal performance, the exposed PowerPAD™
underneath the device must be soldered down to the printed-circuit board.
U1
TPS5430DDA
10.8 - 19.8 V
VIN
EN
C1
10
m
F
7
5
2
3
6
VIN
BOOT
ENA
NC
NC
VSNS
GND
PwPd
9
R2
3.24 kW
8
PH
4
D1
B340A
+
C3
220
m
F
R1
10 kW
1
C2
0.01
m
F
L1
15
m
H
0.050
0.026
5V
VOUT
Figure 11. Application Circuit, 12-V to 5.0-V
Design Procedure
The following design procedure can be used to select component values for the TPS5430. Alternately, the
Designer Software may be used to generate a complete design. The Designer Software uses an iterative design
procedure and accesses a comprehensive database of components when generating a design. This section
presents a simplified discussion of the design process.
To begin the design process a few parameters must be decided upon. The designer needs to know the following:
• Input voltage range
12
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