MIC5254 Datasheet, PDF (6/11 Pages) Micrel Semiconductor – DUAL 150MA UCAP LDO WITH ERROR FLAG OUTPUTS

MIC5254
Typical Characteristics
For each LDO Channel.
Short Circuit Current
600
500
400
300
200
100
03 _{3.5 4 4.5 5 5.5 6}
INPUT VOLTAGE (V)
Short Circuit Current
500
490 ^{VIN = VOUT + 1V}
480
470
460
450
440
430
420
410
40-040 _{-20 0 20 40 60 80 100120140}
TEMPERATURE (°C)
Micrel
Output Voltage vs.
Temperature
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
I
LOAD
=
100µA
3.2-040 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Test Circuit
Enable Threshold
vs. Temperature
1.3
1.25
1.2
1.15
1.1
1.05
1
0.95
0.9
0.85
I
LOAD
=
100µA
0.-840 _{-20 0 20 40 60 80 100120140}
TEMPERATURE (°C)
Error Flag Pull-Up Resistor
4.5
Power Good
4
3.5
3
2.5
2
1.5
V_IN = 4V
1
0.5
00.1
Power Fail
1 10 100 1000 10000
RESISTANCE (kΩ)
V_INA
1µF
V_INB
1µF
MIC5254
9
10
VINA OUTA
2 _{ENA FLGA} 1
3 _{GNDA OUTB} 8
6 _{VINB FLGB} 4
5 _{ENB GNDB} 7
47kΩ
FLAGA
0.01µF
47kΩ
FLAGB
0.01µF
V_OUTA
1µF
Ceramic
V_OUTB
1µF
Ceramic
MIC5254
6
September 2003