Datasheet

PTN78060W
2 6
5
+
7 4 C5
Vo
Inhibit GND Adjust
Vo
Sense
13
GNDGND
D
+
GND
A
B C
UDG−05087
L2
1 µH to 5 µH
L1
1 µH to 5 µH
C1
1 µF
50 V
Ceramic
C2
2.2 µF
50 V
Ceramic
(Required)
R
SET
C4
2.2 µF
Ceramic
C3
100 µF
(Required)
V
I
V
I
10
15
20
25
30
35
40
45
0 0.5 1 1.5 2 2.5 3
1 MHz
600 kHz
Attenuation − dB
Load Current − A
PTN78060W , PTN78060H
www.ti.com ................................................................................................................................................... SLTS229B – NOVEMBER 2004 – REVISED JUNE 2009
A. See specifications for required value and type. For PTN78060H, C
C2
= 3 × 4.7 µ F.
B. See Application Information section for suggested value and type.
C. Recommended whenever I
O
> 2A.
D. For PTN78060H, C
C1
≥ 4.7 µ F.
Figure 33. Adding π Filters (I
O
≤ 3 A)
Figure 34. π -Filter Attenuation vs. Load Current
Copyright © 2004 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Link(s): PTN78060W PTN78060H