PAM3101
300mA High PSRR Low Dropout CMOS Linear Regulator
Typical Performance Characteristics
T
A
=25°C, V
EN
=V
IN
, C
IN
=1μF, C
O
=2.2μF, C
BYP
=10nF, unless otherwise noted.
1. Output Voltage vs Input Voltage
V
O
= 1.8V
2. Output Voltage vs Output Current
V
O
= 1.8V
V
IN
=3V
1.85
1.8
1.82
1.8
Output Voltage (V)
1.75
I
O
=1mA
1.7
1.65
1.6
1.55
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
I
O
=300mA
I
O
=150mA
Output Voltage (V)
1.78
1.76
1.74
1.72
1.7
0
50
100
150
200
250
300
Output Current (mA)
V
IN
=5V
V
IN
=4V
2.55
2.5
V
O
= 2.5V
2.52
2.5
V
O
= 2.5V
V
IN
=4V
Output Voltage (V)
2.45
2.4
2.35
2.3
I
O
=300mA
2.25
2.2
2
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
I
O
=1mA
I
O
=150mA
Output Voltage (V)
2.48
2.46
2.44
2.42
2.4
0
50
100
150
200
250
300
Output Current (mA)
V
IN
=5V
V
IN
=3V
3.35
3.3
V
O
= 3.3V
3.32
3.3
V
O
= 3.3V
V
IN
=4V
Output Voltage (V)
3.25
3.2
3.15
3.1
3.05
3
3
3.5
4
4.5
5
5.5
Input Voltage (V)
I
O
=300mA
I
O
=150mA
I
O
=1mA
Output Voltage (V)
3.28
3.26
3.24
3.22
3.2
0
50
100
150
200
250
300
Output Current (mA)
V
IN
=5V
Power Analog Microelectronics, Inc
www.poweranalog.com
11/2010 Rev 2.5
6