Dual High-Efficiency PWM Step-Down DC-DC Coverter
PAM2306
Typical Performance Characteristics
T
A
=25 °C , C
IN
=10 μ F, C
O
=10 μ F, L=4.7 μ H, unless otherwise noted.
Efficiency vs Output Current (Vo=1.2V)
Efficiency vs Output Current (Vo=1.5V)
100
90
80
70
60
50
40
30
20
10
0
100
90
Efficiency(%)
Efficiency(%)
80
70
60
50
40
30
20
2.5V
3.6V
4.2V
Vin=3.6V
Vin=4.2V
Vin=5V
1
10
100
1000
1
10
100
1000
Output Current(mA)
Output Current(mA)
Efficiency vs Output Current ( Vo=1.8V )
100
90
100
90
80
Efficiency vs Output Current ( Vo=2.5V )
Efficiency(%)
80
70
60
50
40
30
20
1
10
100
Output Current(mA)
1000
2.5V
3.6V
4.2V
Efficiency(%)
70
60
50
40
30
20
1
10
100
1000
Output Current(mA)
3V
3.6V
4.2V
100
90
Efficiency vs Output Current (Vo=2.8V)
70
60
50
40
30
20
1
10
100
Output Current(mA)
3V
3.6V
4.2V
Efficiency(%)
Efficiency(%)
80
100
90
80
70
60
50
40
30
20
10
0
Eifficiency VS Output Current (Vo=3.3V)
Vin=3.6V
Vin=4.2V
Vin=5V
1000
1
10
100
1000
Output Current(mA)
Power Analog Microelectronics
,
Inc
www.poweranalog.com
07/2008 Rev 1.0
6
PAM [ POWER ANALOG MICOELECTRONICS ]
