MIC5353 Datasheet, PDF (5/12 Pages) Micrel Semiconductor – 500mA LDO in 1.6mm × 1.6mm Package

Micrel, Inc.
Typical Characteristics
Dropout Voltage
vs. Output Current
200
180
160
140
120
100
80
60
40
20
0
0 50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Temperature
250
200
500mA
150
300mA
100
50
150mA
0
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Ground Current
vs. Temperature
120
110
100
IOUT = 500mA
90
80
IOUT = 100μA
70
60
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
1.4
1.3
1.2
1.1
1
VOUT =2.8V
CIN=COUT=1μF
0.9
0.8
2.5
3
3.5
4
4.5
5
5.5
6
INPUT VOLTAGE(V)
Output Voltage
vs. Output Current
1.84
1.83
1.82
1.81
1.8
1.79
1.78
VIN=2.8V
1.77
COUT=CIN=1μF
1.76
0
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT(mA)
PSRR
-100
-90
-80 500µA
-70
-60
-50
300µA
-40
-30
-20
COUT = 1µF
-10 CBYP = 0.1µF
0
10
100
100µA
1,000
10,000 100,000 1,000,000 10,000,000
FREQUENCY (Hz)
MIC5353
Ground Current
vs. Output Current
92
90
88
86
84
VOUT = 2.8V
82
VIN = 3.8V
80
0
100
200
300
400
500
Output Current(mA)
Output Voltage
vs. Input Voltage
3.6
3.4
3.2 _100μA
3
2.8
2.6
2.4
2.2
2
2.6
300mA
150mA
500mA
VOUT = 2.8V
CIN = COUT = 1μF
3 3.4 3.8 4.2 4.6 5 5.4 5.8
INPUT VOLTAGE (V)
Output Noise Spectral Density
10
1
0.1
0.01
VIN = 4.5V
COUT = 1µF
VOUT = 1.8V
ILOAD = 50mA
CBYP = 0.1µF
0.001
10
100
1,000
10,000 100,000 1,000,000 10,000,000
FREQUENCY (Hz)
May 2010
5
M9999-052510