MAX8877 Maxim, MAX8877 Datasheet - Page 4

• Manufacturer Part Number: MAX8877
• Description: Low-Noise / Low-Dropout / 150mA Linear Regulators with 2982 Pinout
• Manufacturer: Maxim

Low-Noise, Low-Dropout, 150mA Linear
Regulators with ‘2982 Pinout
4
(V
____________________________Typical Operating Characteristics (continued)
IN
0.01
250
200
150
100
_______________________________________________________________________________________
0.1
50
10
0
1
= V
0
DROPOUT VOLTAGE vs. LOAD CURRENT
0
OUT(NOMINAL)
OUTPUT NOISE SPECTRAL DENSITY
20
50 V/div
T
V
A
40
OUT
1
= -40°C
(MAX887_EUK25)
LOAD CURRENT (mA)
vs. FREQUENCY
T
FREQUENCY (kHz)
A
60
MAX887_EUK25, C
= +25°C
T
A
+ 0.5V, C
= +85°C
80
10
C
OUTPUT NOISE 10Hz TO 100kHz
C
100 120 140 160
OUT
OUT
= 10 F
C
I
= 1 F
LOAD
100
BP
OUT
IN
= 0.01 F
= 10mA
= 10 F, I
= 1µF, C
1ms/div
1000
LOAD
OUT
= 10mA, C
200
150
100
= 1µF, C
50
80
70
60
50
40
30
20
10
0
0
0.001
BP
0
DROPOUT VOLTAGE vs. LOAD CURRENT
= 0.1 F
OUTPUT NOISE vs. BP CAPACITANCE
T
20
A
BP
= -40°C
T
= 0.01µF, T
40
A
BP CAPACITANCE ( F)
(MAX887_EUK50)
= +25°C
LOAD CURRENT (mA)
T
A
60
= +85°C
0.01
80
MAX887_EUK25
MAX887_EUK30
A
0.01
100 120 140 160
100
C
I
f = 10Hz to 100kHz
MAX887_EUK50
0.1
LOAD
10
= +25°C, unless otherwise noted.)
OUT
1
= 10 F
= 10mA
0
STABLE REGION
REGION OF STABLE C
0.1
vs. LOAD CURRENT
LOAD CURRENT (mA)
C
60
50
40
30
20
10
OUT
70
60
50
40
30
20
10
0
0
C
OUT
= 10 F
0.01
1
100
= 1 F
I
C
POWER-SUPPLY REJECTION RATIO
LOAD
OUTPUT NOISE vs. LOAD CURRENT
OUT
C
C
f = 10Hz to 100kHz
BP
OUT
BP
= 0.1 F
= 0.01 F
= 50mA
0.1
ESR
= 10 F
LOAD CURRENT (mA)
vs. FREQUENCY
10
FREQUENCY (kHz)
150
1
MAX887_EUK30
10
MAX887_EUK50
MAX887_EUK25
100
C
C
OUT
OUT
100
= 1 F
= 10 F
1000
1000