Datasheet

MAX8877/MAX8878
Low-Noise, Low-Dropout, 150mA Linear
Regulators with '2982 Pinout
4 _______________________________________________________________________________________
0
50
150
100
200
250
0406020 80 100 120 140 160
DROPOUT VOLTAGE vs. LOAD CURRENT
(MAX887_EUK25)
MAX8877-10
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
50
100
150
200
0406020 80 100 120 140 160
DROPOUT VOLTAGE vs. LOAD CURRENT
(MAX887_EUK50)
MAX8877-11
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
70
0
10
20
30
40
50
60
0.01 0.1 1 10 100 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX8877-12
FREQUENCY (kHz)
PSRR (dB)
I
LOAD
= 50mA
C
BP
= 0.1µF
C
OUT
= 10µF
C
OUT
= 1µF
10
0.01
0101 1000
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
0.1
1
MAX8877-13
FREQUENCY (kHz)
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
100
C
BP
= 0.01µF
I
LOAD
= 10mA
C
OUT
= 10µF
C
OUT
= 1µF
80
0
10
20
30
40
50
60
70
0.001 0.01 0.1
OUTPUT NOISE vs. BP CAPACITANCE
MAX8877-14
BP CAPACITANCE (µF)
OUTPUT NOISE (µV
RMS
)
MAX887_EUK50
C
OUT
= 10µF
I
LOAD
= 10mA
f = 10Hz to 100kHz
MAX887_EUK30
MAX887_EUK25
0
20
10
40
30
50
60
1 10 100 1000
OUTPUT NOISE vs. LOAD CURRENT
MAX8877-15
LOAD CURRENT (mA)
OUTPUT NOISE (µV
RMS
)
MAX887_EUK50
C
OUT
= 10µF
C
BP
= 0.01µF
f = 10Hz to 100kHz
MAX887_EUK30
MAX887_EUK25
2.40
2.45
2.50
2.55
2.60
-40 40200-20 60 80 100
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX887_EUK25)
MAX8877-07
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
I
LOAD
= 50mA
4.8
4.9
5.0
5.1
5.2
-40 40200-20 60 80 100
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX887_EUK50)
MAX8877-08
TEMPERATURE (°C)
OUTPUT VOLTAGE (V)
I
LOAD
= 50mA
0
60
40
20
100
80
180
160
140
120
200
-40 -20 0 20 40 60 80 100
GROUND PIN CURRENT
vs. TEMPERATURE
MAX8877-09
TEMPERATURE (°C)
GROUND PIN CURRENT (µA)
MAX887_EUK50
MAX887_EUK25
I
LOAD
= 50mA
Typical Operating Characteristics (continued)
(V
IN
= V
OUT(NOMINAL)
+ 0.5V or 2.5V (whichever is greater), C
IN
= 1µF, C
OUT
= 1µF, C
BP
= 0.01µF, T
A
= +25°C, unless otherwise
noted.)