el7520a Intersil Corporation, el7520a Datasheet - Page 5

• Manufacturer Part Number: el7520a
• Description: 4-channel Dc/dc Controller
• Manufacturer: Intersil Corporation

Typical Performance Curves
V
V
BOOST
LOGIC
V
V
V
OFF
V
LOGIC
ON
V
CDLY
-0.2
-0.4
-0.6
-0.8
-1.2
-1.4
REF
FIGURE 11. EL7520 START-UP SEQUENCE
EN
FIGURE 9. EL7520 START-UP SEQUENCE
-1
0
0
FIGURE 7. V
20
OFF
TIME (10ms/DIV)
40
I
LOAD REGULATION
OUT
TIME (20ms/DIV)
5
(mA)
60
(Continued)
C
80
DLY
C
DLY
=0.1µF
=0.1µF
100
EL7520, EL7520A
V
BOOST-DELAY
V
V
BOOST
V
LOGIC
V
CDLY
V
-0.2
-0.4
-0.6
-0.8
-1.2
REF
FIGURE 10. EL7520 START-UP SEQUENCE
FIGURE 12. EL7520 START-UP SEQUENCE
LOGIC
V
-1
0
V
FIGURE 8. V
OFF
0
ON
100
200
LOGIC
300
I
OUT
LOAD REGULATION
TIME (20ms/DIV)
TIME (20ms/DIV)
(mA)
400
500
C
DLY
600
C
DLY
=0.1µF
=0.1µF
July 12, 2005
700
FN7318.0