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