PAM2309 Datasheet, PDF (6/16 Pages) Power Analog Micoelectronics – 1A Step-Down DC-DC Converter

PAM2309
1A Step-Down DC-DC Converter
Typical Performance Characteristics
T_A=25 °C, C = _IN 10μF, C_O=10μF, L=4.7μH, unless otherwise noted.
Efficiency VS Input Voltage (Vo=1.2V)
100
90
80
70
60
50
Io=10mA
40
Io=100mA
Io=800mA
30
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Efficiency vs Input Voltage (Vo=1.5V)
100
90
80
70
60
50
10mA
40
100mA
800mA
30
2.5
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Efficiency vs Input Voltage (Vo=1.8V)
100
90
80
70
60
50
10mA
40
100mA
800mA
30
2.5
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Efficiency vs Input Voltage (Vo=2.5V)
100
90
80
70
60
50
10mA
40
100mA
800mA
30
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Efficiency vs Input Voltage (Vo=2.8V)
100
90
80
70
60
50
10mA
40
100mA
800mA
30
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Eifficiency VS Input Voltage (Vo=3.3V)
100
90
80
70
60
50
40
30
20
I o= 10mA
10
I o= 100mA
I o= 800mA
0
3.5 3.75 4 4.25 4.5 4.75 5 5.25 5.5
Input Voltage(V)
Power Analog Microelectronics,Inc
www.poweranalog.com
6
08/2009 Rev 1.1