Micrel, Inc.
MIC47053
Typical Characteristics (Continued)
Output Voltage vs.
Output Current
Ground Current vs.
Input Voltage
Ground Current vs.
Temperature
1.208
1.206
1.204
1.202
1.200
1.198
1.196
1.194
1.192
1.190
20
15
10
5
5.00
4.50
4.00
3.50
3.00
2.50
2.00
VBIAS = 5.0V
VOUT 1.2V
OUT = 500mA
=
I
VBIAS = 3.6V
VIN = 1.8V
OUT = 1.2V
IOUT = 500mA
VBIAS = 3.6V
V
VIN = 1.8V
0
0
100
200
300
400
500
1.2
1.6
2.0
2.4
2.8
3.2
3.6
-40
-20
0
20
40
60
80
100 120
OUTPUT CURRENT (mA)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
Current Limit vs.
Input Voltage
Current Limit vs.
Temperature
Output Voltage vs.
Temperature
1.80
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
VBIAS = 3.6V
IN = 1.8V
IOUT = 100µA
VBIAS = 5.0V
VBIAS = 5.0V
VOUT = 1.2V
V
V
V
IN = 1.8V
OUT = 1.2V
1.5
2
2.5
3
3.5
4
-40
-20
0
20
40
60
80
100 120
-40
-20
0
20
40
60
80
100 120
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
Power Supply Ripple Rejection
(Input Voltage)
Power Supply Rejection Ratio
(Bias Voltage)
Output Noise
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
10
1
0.1
`
`
VBIAS = 3.6V
VBIAS = 4.2V
VIN = 1.8V ±300mV
VOUT = 1.2V
VBIAS = 4.2V ±300mV
VIN = 1.8V
VIN = 2.1V
0.01
0.001
VOUT = 1.2V
VOUT = 1.2V
IOUT = 500mA
CBIAS = 0.1µF
IOUT = 500mA
OUT = 1µF
NOISE (10Hz-100Khz) = 111µVrms
IOUT = 500mA
C
COUT = 1µF
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
FREQUENCY (kHz)
FREQUENCY(kHz)
FREQUENCY(kHz)
M9999-080712-B
August 2012
6