MIC2219 Datasheet, PDF (6/10 Pages) Micrel Semiconductor – Dynamically Adjustable Dual uCap LDO

MIC2219
Typical Characteristics
PSRR Output 1
80
C_BYP = 100nF
60
C_BYP = 10nF
40
C_BYP = 1nF
20
V_IN = V_OUT + 1
I_OUT = 150mA
C_OUT = 1µF
0
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
10E-6
Spectral Noise
Density Output 2
100µA Load
1E-6
100E-9 _{COUT = 1µF}
C
IN
=
1µF
C_BYP = 0.01µF
10E-9
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
Dropout Voltage
Output 1
150
150mA Load
100
50
0-40 _{-20 0 20 40 60 80 100120140}
TEMPERATURE (°C)
Ground Current
vs. Output 1 Current
60
50
40
30
20
10
00 _{20 40 60 80 100 120 140}
OUTPUT 1 LOAD CURRENT (mA)
M9999-042105
Micrel, Inc.
PSRR Output 2
80
C_BYP = 100nF
60
C_BYP = 10nF
40
C_BYP = 1nF
20
V_IN = V_OUT + 1
I_OUT = 300mA
C_OUT = 1µF
0
0.01 0.1 1k 10k 100k 1M
FREQUENCY (Hz)
Dropout Characteristics
Output 1
3.5
3.0 _{Load = 100µA}
2.5
2.0
Load = 150mA
1.5
1.0
0.5
00 _{1 2 3 4 5 6}
INPUT VOLTAGE (V)
Dropout Voltage
Output 2
350
300 _{300mA Load}
250
200
150
100
50
0-40 _{-20 0 20 40 60 80 100120140}
TEMPERATURE (°C)
Ground Current
vs. Output 2 Current
60
50
40
30
20
10
00 _{50 100 150 200 250 300}
OUTPUT 2 LOAD CURRENT (mA)
6
10E-6
Spectral Noise
Density Output 1
100µA Load
1E-6
100E-9 _{COUT = 1µF}
C
IN
=
1µF
C_BYP = 0.01µF
10E-9
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
Dropout Characteristics
Output 2
3.5
3.0 _{Load = 100µA}
2.5
2.0
Load = 300mA
1.5
1.0
0.5
00 _{1 2 3 4 5 6}
INPUT VOLTAGE (V)
Ground Current
vs. Supply Voltage
60 _{Output 1 and 2}
with 100µA Load
50
40
30
20
10
00 _{1 2 3 4 5 6}
SUPPLY VOLTAGE (V)
Ground Pin Current
60 _1mA
100µA
50
40 _0µA
30
20
10
Load on both outputs
0-40 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
April 2005