EL7563 INTERSIL [Intersil Corporation], EL7563 Datasheet - Page 9

• Manufacturer Part Number: EL7563
• Description: Monolithic 4 Amp DC:DC Step-Down Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Performance Curves (20 Pin SO Package)
NOTE: The 28-Pin HTSSOP Package Offers Improved Performance
Block Diagram
3.3V
STP
STN
EN
22Ω
2.2nF
0.22µF
V
VTJ
DD
POWER
TRACKING
CONTROLLER
SGND
9
SUPPLY
TEMPERATURE
JUNCTION
FB
V
I
O
O
PWM
FIGURE 21. SHORT-CIRCUIT PROTECTION
CONTROLLER
V
V
REFERENCE
IN
REF
VOLTAGE
=3.3V, V
CURRENT
SENSE
+
-
V
REF
O
=1.8V, I
0.1µF
EL7563
OSCILLATOR
DRIVERS
O
=4A TO SHORT
C
OSC
POWER
POWER
(Continued)
FET
FET
390pF
V
V
V
PGND
PG
DRV
HI
IN
0.22µF
4.7µH
330µF
D
1
D
3
0.22µF
1kΩ
1.58kΩ
D
0.1µF
2
2.2nF
D
4
V
(2.5V, 4A)
OUT
May 13, 2005
FN7296.2