PAM2303 Datasheet, PDF (7/13 Pages) Power Analog Micoelectronics – 3A Low Noise Step-Down DC-DC Converter

PAM2303
3A Low Noise Step-Down DC-DC Converter
Typical Performance Characteristics
T_A =25°C, C_IN =33uF,Co=22μF unless otherwise noted.
Quiescent Current VS Input Voltage
44
Rdson VS Input Voltage
110
42
40
38
36
34
Vo1.2V
Vo1.8V
32
Vo3.3V
30
2 2.5 3 3.5 4 4.5 5 5.5 6
Input Voltage (V)
Oscillator Frequency VS Input Voltage
1.50
1.48
1.46
1.44
1.42
1.40
1.38
1.36
1.34
1.32
Io=3A
1.30
2.5 3 3.5 4 4.5 5 5.5
Input Voltage(V)
100
90
80
70
60
P-0.1A
N-0.1A
50
2 2.5 3 3.5 4 4.5 5 5.5 6
Input Voltage (V)
Oscillator Frequency VS Temperature
1.58
1.56
1.54
1.52
Vin=3.6V
1.50
20 40 60 80 100 120 140
Temperature(℃）
Reference Voltage VS Input Voltage
0.602
0.600
0.598
0.596
0.594
0.592
0.590
0.588
0.586
0.584
I =100mA
I =600mA
I =800mA
2
3
4
5
6
Input Voltage
Reference Voltage VS Temperature
0.6
0. 598
0. 596
0. 594
0. 592
0. 59
0. 588
0. 586
0. 584
0. 582
0. 58
25
50
75
100
125
150
Tem perature
Power Analog Microelectronics, Inc
www.poweranalog.com
7
11/2011 Rev1.2