PAM2308 Datasheet, PDF (9/15 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 ^OC, C_IN=10μF, C_O=10μF,L=4.7μH, unless otherwise noted.
Dynamic Supply Current VS Input Voltage
50 _Vo=1.2V
45
40 ^ILoad=0A
35
30
25
20
15
10
5
0
2.5
3
3.5
4
4.5
5
5.5
Input Voltage(V)
Dynamic Supply Current VS Temperature
60
50
40
30
Vo=1.2V
20 _Vin=3.6V
10 ILoad=0A
0
40
60
80
100
120
140
Temperature(°C)
Rdson VS Input Voltage
0.4
Vin=3.6V
0.35
Rdson VS Temperature
0.6
Vin=3.6V
0.5
0.3
0.4
0.25
0.3
0.2
0.15
0.1
2
3
4
5
Input Voltage(V)
0.2
0.1
0
6
20
Vin=4.2V
Vin=3.6V
Vin=2.7V
70
Tem perature(°C)
120
Oscillator Frequency VS Supply Voltage
1.8
Vin=3.6V
1.7
1.6
1.5
1.4
1.3
1.2
2
3
4
5
Supply Voltage(V)
Oscillator Frequency VS Temperature
1.58
Vin=3.6V
1.56
1.54
1.52
1.50
20
40
60
80
100
120
140
Temperature(°C)
Power Analog Microelectronics,Inc
www.poweranalog.com
9
07/2008 Rev 1.0