el7564 Intersil Corporation, el7564 Datasheet - Page 12

• Manufacturer Part Number: el7564
• Description: Monolithic 4 Amp Dc/dc Step-down Regulator
• Manufacturer: Intersil Corporation

Power Tracking
The power tracking pins STP and STN are the inputs to a
comparator, whose HI output forces the PWM controller to
skip switching cycles.
10
10
1
2
6
7
8
9
1
2
6
7
8
9
12
EL7564
EL7564
+
+
-
-
20
19
15
14
13
12
11
20
19
15
14
13
12
11
FIGURE 24. LINEAR POWER TRACKING
EL7564
V
V
C
P
1. Linear Tracking
In this application, it is always the case that the lower voltage
supply V
Figure 22 below.
V
OUT
C
tracks the higher output supply V
TIME
V
V
P
C
P
. Please see
May 9, 2005
FN7297.3