MIC39100_05 Datasheet, PDF (6/12 Pages) Micrel Semiconductor – 1A Low-Voltage Low-Dropout Regulator

MIC39100/39101/39102
Ground Current
vs . S upply V oltage (3.3V )
50
40
30
ILOAD =1A
20
10
0
0
2
4
6
8
SUPPLY VOLTAGE (V)
Ground Current
vs . T emperature
20
I_LOAD = 1A
15
2.5V
1.8V
10
3.3V
5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
E rror Flag
P ull-Up R es is tor
6
V_IN = 5V
5
FLAG HIGH
4
(O K )
3
2
1
FLAG LOW
(F AULT )
0
0.01 0.1 1 10 100 1000 10000
RESISTANCE (kΩ)
Ground Current
vs . T emperature
1.0
0.8
ILOAD ₌10mA
0.6
3.3V
0.4
2.5V
0.2
1.8V
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Output V oltage
vs . T emperature
3.40
T ypical 3.3V
3.35
Device
3.30
3.25
3.20
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
E nable C urrent
vs . T emperature
12
V_IN = V_OUT + 1V
10
V_EN = 2.4V
8
6
4
2
0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Micrel
Ground Current
vs . T emperature
5.0
4.5
2.5V
4.0
3.3V
3.5
3.0 _1.8V
2.5
2.0
1.5
1.0
0.5
I_LOAD = 500mA
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
S hort C ircuit
vs . T emperature
2.5
2.0
3.3V
1.5
2.5V
1.8V
1.0
0.5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
F lag-L ow V oltage
vs . T emperature
250
200
F LAG -LOW
V OLT AG E
150
100
V_IN = 2.25V
R _PULL-UP = 22kΩ
50
0
-40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
M9999-082505
6
August 2005