PAM2308 Datasheet, PDF (7/15 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 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
7
07/2008 Rev 1.0