MIC2215 Datasheet, PDF (7/11 Pages) Micrel Semiconductor – Tirple High PSRR, Low Noise uCap LDO

MIC2215
Ground Current
vs. Supply Voltage for LDO 3
200
180
250mA
160
140
120
100
150mA
80
100µA
60
40
20
V_OUT = 3V
00 _{1 2 3 4 5}
SUPPLY VOLTAGE (V)
Output Voltage
vs. Supply Voltage for LDO 3
3.5
3
2.5
2 ^100µA
1.5
1
10mA
0.5
250mA
00 _{1 2 3 4 5}
SUPPLY VOLTAGE (V)
Power Supply Rejection Ratio
80
70
60 LDO 1
50
LDO 2
LDO 3
40
30
20
10
0
100
V_IN = V_OUT + 1V
C_BYP = 0.1µF
I_LOAD = 150mA
1K 10K 100K 1M
FREQUENCY (Hz)
Output Voltage
vs. Supply Voltage for LDO 1
3.5
3
2.5
2
100µA
1.5
1
10mA
0.5
250mA
00 _{1 2 3 4 5}
SUPPLY VOLTAGE (V)
Power Supply Rejection Ratio
3V_OUT
-90
1V∆
1.0V V∆
-80
-70
-60
400mV
V∆
1.2V V∆
2V V∆
600mV∆
-50 ^{20400m0VmVV∆∆}
-40 _200mV∆
-30
-20
C_BYP = 0.1µF
-10
V_IN = V_OUT + ∆V
I_LOAD = 150mA
0
100
1K 10K 100K 1M
FREQUENCY (Hz)
Micrel
Output Voltage
vs. Supply Voltage for LDO 2
3.5
3
2.5
100µA
2
1.5
1
10mA
0.5
250mA
00 _{1 2 3 4 5}
SUPPLY VOLTAGE (V)
Power Supply Rejection Ratio
90
80
vs. C_BYPASS
C_BYP
=
1µF
C_BYP
=
0.1µF
70
C_BYP = 10nF
60
50
40
30
C_BYP
= 1nF
C_BYP
=
0
20
10
0
100
V_IN = V_OUT +1V
I_LOAD = 150mA
1K
10K 100K 1M
FREQUENCY (Hz)
April 2004
7
M9999-042704