MIC5313 Datasheet, PDF (4/12 Pages) Micrel Semiconductor – Low Voltage Dual 300mA LDO

Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio (V_IN)
150mA
300mA
V_IN = V_OUT +1V
V_OUT = 1.8V
C_OUT = 1µF
C_BYP = 10nF
0
10 100 1k
10k 100k 1M
FREQUENCY (Hz)
Ground Current (V_IN)
vs. Output Current
16.0
V_IN = V_OUT +1V
15.5
V_BIAS = 3.6V
15.0
V_OUT1 = 1.5V
V_OUT2 = 1.2V
14.5
C_OUT = 1µF
14.0
C_BYP = 10nF
13.5
13.0
12.5
12.0
0
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Temperature
120
100
300mA
80
V_OUT = 1.5V
60
C_OUT = 1µF
150mA
40
20
10mA
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
1.70
1.65
1.60
1.55
1.50
1.45
1.40
1.35
1.300
Output Voltage
vs. Output Current
V_IN = V_OUT +1V
V_BIAS = 3.6V
V_OUT = 1.5V
C_OUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
July 2008
Power Supply
Rejection Ratio (V_BIAS)
150mA
300mA
V_IN = V_OUT +1V
V_OUT = 1.8V
C_OUT = 1µF
C_BYP = 10nF
0
10 100 1k
10k 100k 1M
FREQUENCY (Hz)
Ground Current (V_BIAS)
vs. Output Current
30
29
28
27
V_IN = V_OUT +1V
26
V_BIAS = 3.6V
V_OUT1 = 1.5V
V_OUT2 = 1.2V
25
C_OUT = 1µF
C_BYP = 10nF
24
0 50 100 150 200 250 300
OUTPUT CURRENT (mA)
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0
0
Dropout Voltage
vs. Load Current
V_BIAS = 3.6V
V_OUT = 1.8V
C_OUT = 1µF
50 100 150 200 250 300
LOAD CURRENT (mA)
Output Voltage
vs. Input Voltage
2.0
1.8
1.8V
1.6
1.4
1.2
1.1V
1.0
0.8
0.6
V_BIAS = 5.5V
0.4
I_OUT = 10mA
C_OUT1 = 1µF
0.2
C_OUT2 = 1µF
00 _{0.5 1 1.5 2 2.5 3 3.5 4 4.5 5}
INPUT VOLTAGE (V)
4
MIC5313
Ground Current (V_IN)
vs. Temperature
16
15
14
13 VIN = VOUT +1V
V_BIAS = 3.6V
12 ^{VOUT1 = 1.5V}
V_OUT2 = 1.2V
11
C_OUT = 1µF
C_BYP = 10nF
I_OUT1 = I_OUT2 = 300mA
10
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Ground Current (V_IN)
vs. Input Voltage
16
15
300mA
14
10mA
V_BIAS = 3.6V
13
V_OUT1 = 1.5V
V_OUT2 = 1.2V
C_OUT = 1µF
C_BYP = 10nF
12
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
Output Voltage
vs. Temperature
1.70
1.65
1.60
1.55
1.50
1.45
V_IN = V_OUT +1V
1.40
V_BIAS = 3.6V
EN = V_IN
1.35
V_OUT = 1.5V
C_OUT = 1µF
1.30
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
650
630
610
590
570
550
530
510
490
470
4510.5
V_BIAS = 5.5V
V_OUT = 1.5V
C_OUT = 1µF
2 2.5 3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
M9999-070208-A