el7641a Intersil Corporation, el7641a Datasheet - Page 7

• Manufacturer Part Number: el7641a
• Description: Tft-lcd Dc/dc With Integrated Amplifiers
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 1. BOOST EFFICIENCY AT V
FIGURE 3. BOOST LOAD REGULATION vs LOAD CURRENT
FIGURE 5. BOOST LINE REGULATION vs INPUT VOLTAGE
100
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
0.12
0.08
0.06
0.04
0.02
90
80
70
60
50
40
30
20
10
0
0.1
0
0
(PI MODE)
(PI MODE)
0
0
3
V
200
200
IN
V
=5V
3.5
IN
=3V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
400
400
INPUT VOLTAGE (V)
4
7
600
V
600
IN
V
4.5
=3V
IN
=5V
800
800
OUT
5
= 12V (PI MODE)
1000
1000
EL7640A, EL7641A, EL7642A
5.5
1200
1200
6
FIGURE 2. BOOST EFFICIENCY AT V
FIGURE 4. BOOST LOAD REGULATION vs LOAD CURRENT
FIGURE 6. BOOST LINE REGULATION vs INPUT VOLTAGE
-10
-12
-14
94
92
90
88
86
84
82
80
78
-2
-4
-6
-8
3.5
2.5
1.5
0.5
0
0
3
2
1
0
0
(P MODE)
(P MODE)
3
V
IN
V
200
200
IN
=3.3V
3.5
=3V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
400
400
INPUT VOLTAGE (V)
4
600
600
V
4.5
IN
=5.0V
800
V
800
IN
OUT
5
=5V
1000
= 12V (P MODE)
1000
5.5
1200
1200
May 15, 2006
6
FN6270.0