Datasheet

5
C3
+
RT
SYNC
SS/ENA
VBIAS
VIN
VIN
VIN
PGND
PGND
PGND
PwrPd
AGND
VSENSE
COMP
PWRGD
BOOT
PH
PH
PH
PH
PH
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
4
3
2
1
VIN
C1
OPEN
R7
10 kΩ
U2
TPS54110PWP
PWRGD
R4
71.5 kΩ
C5
OPEN
C4
0.1 µF
C9
10 µF
21
0.047 µF
R3
1.74 kΩ
C7
47 pF
C6
1000 pF
C8
560 pF
R5
432 Ω
R1
10.0 kΩ
R2
14.7 kΩ
1 2
L1
1 µH
1.5 V at 1.5 A
C2
10 µF
TPS54110
www.ti.com SLVS500C –DECEMBER 2003– REVISED FEBRUARY 2011
Very-Small Form-Factor Application
Figure 20. Small Form-Factor Reference Design
Figure 20 shows an application schematic for a TPS54110 application designed for extremely small size. To
achieve this goal, the design procedure given in the previous application circuit is modified. For example, in order
to use a small-footprint Coilcraft DO3314-103MX inductor, the maximum-allowable inductor ripple current was
increased above that normally specified. A small 0805 10-µF ceramic capacitor is used in the output filter. All the
additional components are 0402 case size.
© 2003–2011, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): TPS54110