MIC5238 Datasheet, PDF (4/10 Pages) Micrel Semiconductor – Ultra-Low Quiescent Current, 150mA uCap LDO Regulator

MIC5238
Typical Characteristics
PSRR
150mA Load
80
70
60
50
40
30
20 ^{COUT = 2.2µF ceramic}
V = 2.1V
IN
10 _{V = 1.1V}
OUT
0
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
10M
400
350
300
250
200
150
100
50
00
Dropout Voltage
vs. Load
V_IN = V_OUT + 1
25 50 75 100 125 150
OUTPUT CURRENT (A)
Ground Current (V_BIAS)
vs. Output Current
30
V_IN = V_OUT + 1
25
20
15
10
5
00 _{25 50 75 100 125 150}
OUTPUT CURRENT (mA)
Shutdown Current of V_BIAS
20
18 ^{No Load}
16
14
12
10
8
6
4
2
00
0.5
1
1.5
2
ENABLE (V)
MIC5238
Output Voltage
vs. V_BIAS
1.2
100µA
1.1
1
150mA
0.9
0.8
0.7
0.6
0.5
0.14.2 _{1.7 2.2 2.7 3.2 3.7 4.2 4.7 5.2}
INPUT BIAS (V)
Ground Current (V_IN)
1800 ^{vs. Output Current}
1600 ^{VIN = VOUT + 1}
1400
1200
1000
800
600
400
200
00 _{25 50 75 100 125 150}
OUTPUT CURRENT (mA)
Ground Current (V_BIAS)
vs. Input Voltage
30
I_LOAD = 150mA
25
20
15
10
5
0_{0 0.5 1 1.5 2 2.5 3}
INPUT VOLTAGE (V)
Shutdown Current
V_BIAS + V_IN Tied
30
No Load
25
20
15
10
5
00
0.5
1
1.5
2
ENABLE (V)
4
Micrel
Output Voltage
1.15
vs. V_IN
100µA
1.1
1.05
150mA
1
0.95
0.9
0.85
0.18.1 _{1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1}
INPUT V_IN (V)
Ground Current (V_IN)
vs. V_IN Supply
2.0
1.1V
1.8 _150mA
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
00
0.5 1.0 1.5 2.0
V_IN SUPPLY (V)
Shutdown Current of
7
V_IN
No Load
6
5
4
3
2
1
0₀
0.5
1
1.5
2
ENABLE (V)
Ground Current (V_IN)
10
vs Temperature
9
1.1V
100µA
8
7
6
5
4
3
2
1
-040 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
August 2003