MIC5303 Datasheet, PDF (5/8 Pages) Micrel Semiconductor – Single 300mA CMOS Ultra Small ULDO

Micrel, Inc.
Typical Characteristics
100
90
80
70
60
50
40
30
20
10
00
Ground Pin Current
vs. Output Current
V_IN = V_OUT + 1V
V_OUT = 2.8V
C_OUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Power Supply
Rejection Ratio
-80 _50mA
-70
-60 _150mA
-50 _300mA
-40
-30
-20
V_IN = V_OUT + 1V
-10 VOUT = 2.8V
C_OUT = 1µF
00.1
1
10 100
FREQUENCY (kHz)
1,000
Output Voltage
vs. Output Current
2.83
2.82
2.81
2.80
2.79
2.78
2.770
V_IN = V_OUT + 1V
V_OUT = 2.8V
C_OUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
500
490
480
470
460
450
440
430
420
410
4030.0
Current Limit
vs. Input Voltage
V_OUT = 2.8V
C_OUT = 1µF
3.5 4.0 4.5 5.0 5.5
INPUT VOLTAGE (V)
October 2006
Ground Pin Current
vs. Temperature
90
88
86 ^300mA
84
82
100µA
80
78
76
74
V_IN = V_OUT + 1V
72
V_OUT = 2.8V
C_OUT = 1µF
70
20 40 60 80
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
160
V_OUT = 2.8V
140 COUT = 1µF
300mA
120
100
80
150mA
60
40
50mA
20
100µA
0
20 40 60 80
TEMPERATURE (°C)
Output Voltage
vs. Supply Voltage
3.2
2.8
2.4
2.0 100µA
1.6
300mA
1.2
0.8
0.4
C_OUT = 1µF
00 _{1 2 3 4 5 6}
SUPPLY VOLTAGE (V)
Output Noise
Spectral Density
10
1
0.1
0.01 VIN = VOUT + 1V
V_OUT = 2.8V
C_OUT = 1µF
0.001
0.01 0.1 1 10 100 1,000
FREQUENCY (kHz)
5
MIC5303
100
90
80
70
60
50
40
30
20
10
30.0
Ground Pin Current
vs. Supply Voltage
300mA
100µA
3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
Dropout Voltage
vs. Output Current
150
125
100
75
50
25
V_OUT = 2.8V
C_OUT = 1µF
0
0 50 100 150 200 250 300
OUTPUT CURRENT (mA)
Output Voltage
vs. Temperature
3.00
2.95
2.90
2.85
2.80
2.75
2.70
2.65
2.60
2.55
2.50
V_IN = V_OUT + 1V
V_OUT = 2.8V
C_OUT = 1µF
I_OUT = 100µA
20 40 60 80
TEMPERATURE (°C)
M9999-102506-B