參數(shù)資料
型號(hào): EL7563
廠商: Intersil Corporation
英文描述: Monolithic 4 Amp DC:DC Step-Down Regulator
中文描述: 單片4安培直流:DC降壓穩(wěn)壓器
文件頁(yè)數(shù): 13/16頁(yè)
文件大小: 635K
代理商: EL7563
13
FN7296.2
May 13, 2005
The second way of offset tracking is to use the EN and
Power Good pins, as shown in Figure 25. In this
configuration, V
P
does not have to be larger than V
C
.
3. External Soft Start
An external soft start can be combined with auxiliary supply
tracking to provide desired soft start other than internally
preset soft start (Figure 26). The appropriate start-up time is:
t
s
R
C
V
O
V
IN
---------
×
×
=
FIGURE 25. OFFSET TRACKING
V
C
2
3
16
15
14
13
5
6
7
12
11
9
8
10
19
18
EL7563
2
3
16
15
14
13
5
6
7
12
11
9
8
10
19
18
EL7563
1
20
1
20
V
P
EN
PG
EN
PG
TIME
V
C
V
P
FIGURE 26. EXTERNAL SOFT START
1
2
15
14
13
12
6
7
8
11
10
9
20
19
EL7563
-
+
V
OUT
STP
STN
V
IN
R
C
EL7563
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