EL7554IREZT13 INTERSIL [Intersil Corporation], EL7554IREZT13 Datasheet - Page 6

• Manufacturer Part Number: EL7554IREZT13
• Description: Monolithic 4 Amp DC-DC Step-Down Regulator
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Performance Curves
V
IN
= V
1.266
1.264
1.262
1.258
1.256
1.254
1.252
1.248
1.246
1.26
1.25
D
0.95
0.85
0.75
0.65
3.5
2.5
1.5
= 3.3V, V
0.9
0.8
0.7
0.6
4
3
2
1
-50
1
3
0
FIGURE 5. V
FIGURE 3. V
FIGURE 1. EFFICIENCY (V
O
3.5
= 1.8V, I
V
DD
JUNCTION TEMPERATURE
0
1
V
=3.3V
O
EN_HI
=0.8V
V
4
REF
V
EN_LOW
O
EN_HI
V
V
= 4A, L = 2.2µH, C
DD
O
vs TEMPERATURE
V
=1V
6
& V
I
=5V
O
DD
V
50
4.5
O
(mA)
2
=3.3V
(V)
EN_LOW
V
O
=1.2V
IN
5
= 5V)
vs V
100
3
V
V
IN
O
5.5
O
DD
=1.8V
=2.5V
= 2x10µF, C
150
6
4
OUT
EL7554
= 47µF, C
OSC
= 220pF, T
1200
1000
800
600
500
200
100
1.6
1.5
1.4
1.3
1.2
1.1
0.9
95
90
85
80
75
70
65
60
1
0
100
-50
0
FIGURE 2. EFFICIENCY (V
FIGURE 4. V
V
A
DD
200
= 25°C unless otherwise noted.
V
=3.3V
FIGURE 6. F
O
=0.8V
JUNCTION TEMPERATURE
1
0
300
REF
V
DD
V
V
V
O
C
DD
DD
=5V
vs TEMPERATURE
=1V
I
OSC
O
=5V
S
=3.3V
400
50
(mA)
2
vs C
(pF)
V
O
OSC
V
=1.2V
IN
O
500
=2.5V
= 3.3V)
100
3
V
O
600
=1.8V
January 31, 2005
700
150
FN7360.2
4