PAM2303
3A Low Noise Step-Down DC-DC Converter
Typical Performance Characteristics
TA =25°C, CIN =33uF,Co=22μF unless otherwise noted.
Quiescent Current VS Input Voltage
44
Rdson VS Input Voltage
110
100
90
42
40
38
36
80
70
34
Vo1.2V
Vo1.8V
P-0.1A
N-0.1A
60
32
Vo3.3V
30
50
2
2.5
3
3.5
Input Voltage (V)
Oscillator Frequency VS Input Voltage
4
4.5
5
5.5
6
2
2.5
3
3.5
Input Voltage (V)
Oscillator Frequency VS Temperature
4
4.5
5
5.5
6
1.50
1.48
1.46
1.58
1.56
1.54
1.52
1.50
1.44
1.42
1.40
1.38
1.36
1.34
1.32
1.30
Io=3A
Vin=3.6V
2.5
3
3.5
4
4.5
5
5.5
20
40
60
Temperature(℃）
Reference Voltage VS Temperature
80
100
120
140
Input Voltage(V)
Reference Voltage VS Input Voltage
0.6
0.598
0.596
0.594
0.592
0.59
0.602
0.600
0.598
0.596
0.594
0.592
0.590
0.588
0.586
0.584
0.588
0.586
0.584
0.582
0.58
I=100mA
I=600mA
I=800mA
2
3
4
5
6
25
50
75
100
125
150
Input Voltage
Temperature
Power Analog Microelectronics, Inc
www.poweranalog.com
11/2011 Rev1.2
7
PAM [ POWER ANALOG MICOELECTRONICS ]
