Datasheet

APPLICATION INFORMATION
R7590 W
R110.0kW
R2
10.0kW
R6
4.99kW
C7
2700pF
C51200pF
C6
0.047 Fm
R4
10.0kW
C3
100 Fm
C4
100 Fm
C11
0.01 Fm
R5
27.4kW
C8
0.047 Fm
C9
0.01 Fm
R8
10.0kW
C1
22 Fm
C2
22 Fm
C12
0.01 Fm
VIN=3 6V-
VOUT=1.8V,6 A MAX
L1
0.82 Hm
C10
150pF
TP4
U1
TPS54617RUV
COMPONENT SELECTION INPUT FILTER
TPS54617
SLVS880A NOVEMBER 2008 REVISED JANUARY 2009 ...........................................................................................................................................
www.ti.com
Figure 10 shows the schematic diagram for a typical TPS54617 application. The TPS54617 (U1) can provide up
to 6A of output current at a nominal output voltage of 1.8 V. For proper thermal performance, the exposed
thermal PowerPAD underneath the integrated circuit, TPS54617, package must be soldered to the printed-circuit
board.
Analog and power grounds are ties at the pad under the package of the IC
Figure 10. Application Circuit
The values for the components used in this design The input voltage is a nominal 3.3 or 5 VDC. The
example were selected for best load transient input filter capacitors (C1 and C2) are 10- µ F ceramic
response and small PCB area. Additional design capacitors (MuRata). C12 is a 0.01- µ F ceramic
information is available at www.ti.com . capacitor that provides high-frequency decoupling of
the TPS54617 from the input supply. C1, C2 and C12
must be located as close as possible to the device.
Input ripple current is shared among C1, C2 and C12.
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Product Folder Link(s) :TPS54617