
Application Notes
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PTH Series of Wide-Output Adjust
Power Modules (3.3/5-V Input)
Figure 3–6; Simultaneous Power Up with Auto-Track Control
PTH05010W
1
10
4
5
6
2
3
98
Track
V
IN
V
O
GND
Inhibit
PTH05020W
1
10
4
5
6
2
3
98
Track
V
IN
V
O
GND
Inhibit
7
C
OUT
+
C
OUT
+
C
IN
+
C
IN
+
Vo
2 =1.8 V
Vo
1 =3.3 V
U1
U2
+5 V
0 V
On/Off Control
1 = Power Down
0 = Power Up
Q1
BSS138
C1
0.1 F
R1
100 k
R
2
698
R
3
5k49
7
Figure 3–5; Sequenced Power Up & Power Down Using Auto-Track
Figure 3–7; Simultaneous Power Down with Auto-Track Control
Vo1 (1 V/Div)
Vo2 (1 V/Div)
On/Off Input
(5 V/Div)
HORIZ SCALE: 10 ms/Div
Vo1 (1 V/Div)
Vo2 (1 V/Div)
On/Off Input
(5 V/Div)
HORIZ SCALE: 10 ms/Div