MIC69101 Datasheet, PDF (4/8 Pages) Micrel Semiconductor – Single Supply VIN, LOW VIN, LOW VOUT, 1A LDO

Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
70
60
50
40
30
20
V_IN = 3.3V
10 ^VOUT ^{= 1.8V}
I_OUT = 0.5A
0
1K 10K
FREQUENCY (Hz)
Output Voltage
vs. Temperature
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
V_IN = V_OUT + 1V
V_OUT = 1.8V
C_OUT = 10µF
I_OUT = 10mA
20 40 60 80
TEMPERATURE (°C)
Ground Current
vs. Temperature
20
18
V_IN = V_OUT + 1V
V_OUT = 1.8V
16
14
1A
C_OUT = 10µF
12
10
8
6
4 _0.5A
2
0
20 40 60 80
TEMPERATURE (°C)
Current Limit
vs. Temperature
4.0
3.5
3.0
2.5
2.0
1.5
1.0
V_IN = 2.8V
0.5
V_OUT = 1.8V
C_OUT = 10µF
0
20 40 60 80
TEMPERATURE (°C)
December 2008
Dropout Voltage
vs. Output Current
400
350
300
250
200
150
100
50
V_OUT = 1.8V
C_OUT = 10µF
1000 300 500 700 900
OUTPUT CURRENT (mA)
Outpout Voltage
vs. Input Voltage
2.0
1.8
1.6
1.4
0.5A
1.2
1A
1.0
0.8
0.6
0.4
0.2
V_OUT = 1.8V
C_OUT = 10µF
00 _{0.4 0.8 1.2 1.6 2.0 2.4 2.8}
INPUT VOLTAGE (V)
Enable Threshold
vs. Temperature
1.0
0.9
0.8
0.7
0.6
ON
0.5
OFF
0.4
0.3 V_IN = 2.8V
0.2 ^VOUT ^{= 1.8V}
0.1
C_OUT = 10µF
I_OUT = 100mA
0
20 40 60 80
TEMPERATURE (°C)
MIC69101/103
400
350
300
250
200
150
100
50
0
10
9
8
7
6
5
4
3
2
1
0
1.900
1.875
1.850
1.825
1.800
1.775
1.750
1.725
1.700
Dropout Voltage
vs. Temperature
I_OUT=1A
I_OUT=0.5A
V_OUT = 1.8V
C_OUT = 10µF
20 40 60 80
TEMPERATURE (°C)
Ground Current
vs. Output Current
V_IN = 2.8V
V_OUT = 1.8V
C_OUT = 10µF
0.5 0.7
OUTPUT CURRENT (A)
Load Regulation
V_IN = 2.8V
V_OUT = 1.8V
C_OUT = 10µF
0.4 0.6
OUTPUT CURRENT (A)
4
M9999-121908-B