MAX8885 Просмотр технического описания (PDF) - Maxim Integrated
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MAX8885 Datasheet PDF : 8 Pages
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150mA, Low-Dropout Linear Regulator
with Power-OK Output
Typical Operating Characteristics (continued)
(MAX8885EUK30, VIN = +3.6V, CIN = 1µF, COUT = 4.7µF, SHDN = IN, TA = +25°C, unless otherwise noted.)
130
120
110
100
90
80
70
60
-40
GROUND PIN CURRENT
vs. TEMPERATURE
VIN = 5.0V
IOUT = 150mA
VIN = 3.6V
IOUT = 150mA
VIN = 3.6V OR 5.0V
IOUT = 0
-15
10
35
60
85
TEMPERATURE (°C)
OUTPUT VOLTAGE vs.
INPUT VOLTAGE
3.5
3.0
IOUT = 0
2.5
2.0
IOUT = 150mA
1.5
1.0
0.5
0
0123456
INPUT VOLTAGE (V)
OUTPUT VOLTAGE vs. OUTPUT LOAD
3.10
3.05
3.00
VIN = 3.6V
2.95
VIN = 5.0V
2.90
0 15 30 45 60 75 90 105 120 135 150
OUTPUT LOAD (mA)
OUTPUT VOLTAGE vs. TEMPERATURE
130
120
110
VIN = 3.6V OR 5.0V
IOUT = 0
100
90
VIN = 3.6V
IOUT = 150mA
80
70
VIN = 5.0V
IOUT = 150mA
60
-40 -15
10
35
60
85
TEMPERATURE (°C)
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
10
DROPOUT VOLTAGE vs.
OUTPUT LOAD
250
200
TA = +85°C
150
100
TA = +25°C
50
TA = -40°C
0
0 15 30 45 60 75 90 105 120 135 150
OUTPUT LOAD (mA)
OUTPUT NOISE (10Hz TO 100kHz)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
65
60
ROUT = 60Ω
55
50
45
COUT = 10µF
40
35
30
25
20
0.01
COUT = 1µF
0.1
1
10 100 1000
FREQUENCY (kHz)
REGION OF STABLE COUT ESR vs.
LOAD CURRENT
1000
1
VOUT
500µV/div
COUT = 1µF
0.1
COUT = 10µF
IOUT = 50mA
0.01
0.1
1
10
100
1000
FREQUENCY (kHz)
COUT = 10µF
ILOAD = 50mA
10ms/div
100
10
STABLE REGION: COUT = 4.7µF TO 10µF
1
0.1
1
30
60
90
120 150
LOAD CURRENT (mA)
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