EL7563C Elantec Semiconductor, EL7563C Datasheet - Page 14

• Manufacturer Part Number: EL7563C
• Description: Monolithic 4 Amp DC:DC Step-down Regulator
• Manufacturer: Elantec Semiconductor

EL7563C
Monolithic 4 Amp DC:DC Step-down Regulator
3. External Soft Start
An external soft start can be combined with auxilliary
supply tracking to provide desired soft start other than
internally preset soft start (Figure 5). The appropriate
start-up time is:
V
IN
R
C
Figure 5. External Soft Start
10
1
2
6
7
8
9
STP
STN
EL7563C
14
+
-
20
19
15
14
13
12
11
t
s
=
R
C
V
OUT
---------
V
V
IN
O