MIC5323 Datasheet, PDF (6/15 Pages) Micrel Semiconductor – High PSRR Low Noise 300mA μCap Ultra-Low Dropout LDO Regulator

Micrel, Inc.
MIC5323
Dropout Voltage vs.
T emperature
160
140
IOUT = 300mA
120
100
I_OUT = 200mA
80
I_OUT = 100mA
60
40
I_OUT = 10mA
20
VOUT = 2.8V
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
10.000
1.000
Output Noise
Spectral Density
V_IN = V_OUT + 1V
V_OUT = 1.8V
C_BYP = 0.01µF
1.900
Output Voltage vs.
T emperature
1.875
1.850
1.825
1.800
1.775
1.750
1.725
1.700
-40 -20
V_IN = 5.5V
V_OUT = 1.8V
I_OUT = 100µA
0 20 40 60 80 100 120
TEMPERATURE (°C)
10.000
1.000
Output Noise
Spectral Density
V_IN = V_OUT + 1V
V_OUT = 1.8V
C_BYP = 0.1µF
10.000
1.000
Output Noise
Spectral Density
V_IN = V_OUT + 1V
V_OUT = 1.8V
C_BYP = 1µF
0.100
0.100
0.100
0.010
Noise (10Hz-100kHz) = 18.7µV
0.001
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY (Hz)
0.010
Noise (10Hz-100kHz) = 18.7µV
0.001
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY (Hz)
0.010
Noise (10Hz-100kHz) = 18µV
0.001
1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY (Hz)
November 2011
6
M9999-110311B