PAM3101
300mA High PSRR Low Dropout CMOS Linear Regulator
Electrical Characteristic
V
IN
=
V
O
+1V, T
A
=
25
°
C
,
C
IN
=
1 μ F, C
O
=
2.2 μ F, unless otherwise noted
PARAMETER
Input Voltage
Output Voltage Accuracy
Output Current
SYMBOL Test Conditions
V
IN
Vo
I
O
Vo=1.5V
Dropout Voltage
V
drop
Io =300mA
Vo=1.8V
2.5V£Vo<3.3V
Vo³3.3V
Ground Current
Quiescent Current
I
GND
I
Q
Io=1mA to 300mA
Io=0mA
Io=1mA, Vo<2V,
V
IN
= 2.8V to 3.8V
Line Regulation
LNR
Io=1mA, 2V£Vo<3.3V,
V
IN
= Vo+0.5V to Vo+1V
Io=1mA, Vo³3.3V,
V
IN
=Vo+0.5V to Vo+1V
Load Regulation
Temperature Coefficient
Over Temperature Shutdown
Over Temperature Hysteresis
Power Supply Ripple Rejection
Output Noise
EN Input High Threshold
EN Input Low Threshold
Shutdown Current
LDR
Tc
OTS
OTH
PSRR
Vn
V
IH
V
IL
I
SD
Io=1mA to 300mA, Vo³2V
Io=1mA to 300mA, Vo<2V
Io=1mA
Io=1mA
Io=1mA
Io=100mA
C
BYP
=10nF
Vo=3.3V
V
IN
=2.5V to 5V
V
IN
=2.5V to 5V
V
EN
=0V
0.01
f=100Hz
f=1kHz
-0.15
-0.1
-0.4
-2
Io=1mA
MIN
Note 1
-2
300
1150
850
370
180
70
65
0.1
0.03
0.2
1
30
40
150
30
70
65
50
1.5
0.3
1
dB
μVrms
V
V
μA
TYP
MAX
5.5
2
Note 2
1400
1100
450
230
90
90
0.15
0.1
0.4
2
60
%
mV
ppm/ C
O
O
O
UNITS
V
%
mA
mV
μA
μA
%/V
C
C
f =10Hz to 100kHz, C
BYP
=10nF
Note1: The minimum input voltage ( V
IN(MIN)
) of the PAM3101 is determined by output voltage and dropout
voltage. The minimum input voltage is defined as :
V
IN(MIN)
=V
O
+V
drop
Note 2: Output current is limited by P
D
, maximum I
O
=P
D
/( V
IN(MAX)
-V
O
).
Power Analog Microelectronics
,
Inc
www.poweranalog.com
09/2008 Rev 1.4
5
PAM [ POWER ANALOG MICOELECTRONICS ]
