PAM2308 Datasheet, PDF (6/15 Pages) Power Analog Micoelectronics – Dual High-Efficiency PWM Step-Down DC-DC Coverter

PAM2308
Dual High-Efficiency PWM Step-Down DC-DC Coverter
Typical Performance Characteristics
T_A=25°C, C = _IN 10μF, C_O=10μF, L=4.7μH, unless otherwise noted.
Efficiency vs Output Current (Vo=1.2V)
100
90
80
70
60
50
40
30
20
Vi n= 3.6V
10
Vi n= 4.2V
Vi n= 5V
0
1
10
100
1000
Output Current(mA)
Efficiency vs Output Current (Vo=1.5V)
100
90
80
70
60
50
40
30
20
1
2.5V
3.6V
4.2V
10
100
1000
Output Current(mA)
Efficiency vs Output Current (Vo=1.8V)
100
90
80
70
60
50
40
30
20
1
10
100
Output Current(mA)
2.5V
3.6V
4.2V
1000
Efficiency vs Output Current (Vo=2.5V)
100
90
80
70
60
50
40
30
20
1
3V
3.6V
4.2V
10
100
1000
Output Current(mA)
100 ^{Efficiency vs Output Current (Vo=2.8V)}
90
80
70
60
50
40
30
20
1
3V
3.6V
4.2V
10
100
1000
Output Current(mA)
Eifficiency VS Output Current (Vo=3.3V)
100
90
80
70
60
50
40
30
20
Vin=3.6V
Vin=4.2V
10
Vin=5V
0
1
10
100
1000
Output Current(mA)
Power Analog Microelectronics,Inc
www.poweranalog.com
6
07/2008 Rev 1.0