PAM2301
800mA Step-Down DC-DC Converters
Typical Performance Characteristics
T
A
=25 C, C
IN
=10 μ F, C
O
=10uF,L=4.7 μ H, unless otherwise noted.
Efficiency VS Output Current (Vo=1.2V)
Efficiency VS Output Current (Vo=1.5V)
O
100
90
80
70
60
50
40
30
20
10
0
1
100
90
Eifficiency(%)
Efficiency(%)
Vin=2.7V
Vin=3.6V
Vin=4.2V
80
70
60
50
40
30
20
1
10
100
2.5V
3.6V
4.2V
10
100
1000
1000
Output Current(m A)
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)
Eifficiency VS Output Current (Vo=3.3V)
100
90
80
70
60
50
40
30
20
10
0
1
10
100
Vin=3.6V
Vin=4.2V
Vin=5.0V
Efficiency(%)
80
70
60
50
40
30
20
1
10
100
Output Current(mA)
3V
3.6V
4.2V
Eifficiency(%)
1000
1000
Output Current(mA)
Power Analog Microelectronics
,
Inc
www.poweranalog.com
09/2008 Rev 1.3
5