MIC4555_11 Datasheet, PDF (7/16 Pages) Micrel Semiconductor – SIM Card Level Shifter with 50mA LDO

Micrel Inc.
Typical Characteristics (Continued)
Current Limit V_CC
vs. Temperature
200
180
160
140
120
100
80
60 ^{VBAT = DVCC = 5V}
V_SEL = 0V
40 _{VCC_NOM = 1.8V}
20
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
100 120
LDO Dropout
vs. Temperature
100
90 I_OUT = 50mA
80
70
60
50
40
30
20
V_CC = 3.0V
10
C_OUT = 1µF
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
LDO PSRR
-120
-110
-100
-90
V_CC = 3V
-80
-70
-60
-50
-40
-30 ^{VBAT = DVCC = 4.3V}
-20
C_OUT = 1µF
Load = 35Ω
-10
V_CC = 1.8V
0
10
100 1000 10000 100000 1000000
FREQUENCY (Hz)
LDO Output Noise
Spectral Density
10
Noise (10Hz- 100kHz) = 55.2µVrms
1
0.1
0.01
V_BAT = DV_CC = 4.3V
Load = 36Ω
C_OUT = 1µF
0.001
10
100
1,000 10,000
FREQUENCY (Hz)
100,000
MIC4555
LDO Dropout
vs. Output Current
70
60
50
V_CC = 3V
40
30
20
10
0
0
C_OUT = 1µF
5 10 15 20 25 30 35 40 45 50
OUTPUT CURRENT (mA)
September 2011
7
M9999-092311-B