24V 100mA Step-Up Converter
Typical Characteristics
Efficiency vs. Output Current
(V
OUT
= 18V; R3 = 20kΩ)
Ω
90
80
AAT1232
Output Error vs. Output Current
(V
OUT
= 18V; R3 = 20kΩ)
Ω
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
V
IN
= 5V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 5V
70
60
50
40
30
20
0.1
1
Output Error (%)
Efficiency (%)
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 2.7V
0.1
1
10
100
10
100
Output Current (mA)
Output Current (mA)
Efficiency vs. Output Current
(V
OUT
= 20V; R3 = 20kΩ)
Ω
90
80
Output Error vs. Output Current
(V
OUT
= 20V; R3 = 20kΩ)
Ω
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
V
IN
= 5V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 5V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 2.7V
70
60
50
40
30
20
0.1
1
Output Error (%)
Efficiency (%)
10
100
0.1
1
10
100
Output Current (mA)
Output Current (mA)
Efficiency vs. Output Current
(V
OUT
= 24V; R3 = 20kΩ)
90
80
Output Error vs. Output Current
(V
OUT
= 24V; R3 = 20kΩ)
Ω
V
IN
= 4.2V
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
V
IN
= 5V
V
IN
= 5V
70
60
50
40
30
20
0.1
1
10
100
V
IN
= 4.2V
V
IN
= 3.6V
Output Error (%)
Efficiency (%)
V
IN
= 3.6V
V
IN
= 2.7V
0.1
1
10
100
Output Current (mA)
Output Current (mA)
1232.2006.12.1.3
5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
