TPS5430-Q1
www.ti.com ................................................................................................................................................... SLVS751C–NOVEMBER 2007–REVISED JULY 2009
0.110
0.220
0.080
0.013 DIA 4 PL
0.040
0.098
All dimensions in inches
Figure 10. TPS5430 Land Pattern
Application Circuits
Figure 11 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 thermal pad underneath
the device must be soldered down to the printed circuit board.
U1
C2
L1
TPS5430DDA
10.8 - 19.8 V
EN
0.01 mF
15 mH
7
5
5 V
VIN
VIN
1
8
4
VOUT
BOOT
PH
ENA
NC
2
3
6
C1
+
C3
D1
B340A
R1
10 mF
220 mF
NC
10 kW
VSNS
GND
PwPd
9
R2
3.24 kW
Figure 11. Application Circuit, 12 V to 5 V
Design Procedure
The following design procedure can be used to select component values for the TPS5430. Alternately, the
SWIFT Designer Software may be used to generate a complete design. The SWIFT 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.
Copyright © 2007–2009, Texas Instruments Incorporated
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