Datasheet

MAX8869
1A, Microcap, Low-Dropout,
Linear Regulator
4
Maxim Integrated
Typical Operating Characteristics
(V
IN
= +5V, V
OUT
= +2.5V, SHDN = IN, SS = open, C
OUT
= 1µF, T
A
= +25°C, unless otherwise noted.)
0
-1.0
-0.5
-2.0
-1.5
-2.5
-3.0
0 1.0 1.50.5 2.0 2.5 3.0
OUTPUT VOLTAGE DEVIATION
vs. OUTPUT CURRENT
MAX8869-01
OUTPUT CURRENT (A)
OUTPUT VOLTAGE DEVIATION (%)
V
IN
= +5V
V
IN
= +3V
I
OUT
= 250mA
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
-40 -15 10 35 60 85
OUTPUT VOLTAGE DEVIATION
vs. TEMPERATURE
MAX8869-02
TEMPERATURE (∞C)
OUTPUT VOLTAGE DEVIATION (%)
0
1.0
0.5
2.0
1.5
3.0
2.5
3.5
023145
GROUND CURRENT
vs. INPUT VOLTAGE
MAX8869-03
INPUT VOLTAGE (V)
GROUND CURRENT (mA)
I
OUT
= 0.5A
I
OUT
= 1A
I
OUT
= 0A
0
1.0
0.5
2.0
1.5
3.0
2.5
3.5
0 400200 600 800 1000
GROUND CURRENT
vs. OUTPUT CURRENT
MAX8869-04
OUTPUT CURRENT (mA)
GROUND CURRENT (mA)
V
IN
= +3V
V
IN
= +5V
0
0.5
1.5
1.0
2.0
2.5
-40 10-15 35 60 85
GROUND CURRENT
vs. TEMPERATURE
MAX8869-05
TEMPERATURE (°C)
GROUND CURRENT (mA)
I
OUT
= 250mA
I
OUT
= 0V
V
IN
= +3VV
IN
= +5V
0
100
50
250
200
150
400
350
300
450
0 500250 750 1000 1250 1500
DROPOUT VOLTAGE
vs. OUTPUT CURRENT
MAX8869-06
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV)
V
OUT
= +3.3V
0
100
50
200
150
250
300
2.5 3.53.0 4.0 4.5 5.0
DROPOUT VOLTAGE
vs. INPUT VOLTAGE
MAX8869-07
INPUT VOLTAGE (V)
DROPOUT VOLTAGE (mV)
I
OUT
= 500mA
IN DROPOUT, V
OUT
≅ V
IN
0
20
10
40
30
60
50
0.01 10.1 10 100 1000
PSRR vs. FREQUENCY
MAX8869-08
FREQUENCY (kHz)
PSRR (dB)
I
OUT
= 300mA
10
0.01
0.01
10
1000
OUTPUT NOISE SPECTRAL DENSITY
vs. FREQUENCY
0.1
1
MAX8869-09
FREQUENCY (kHz)
NOISE (µV/√Hz)
0.1
1
100
I
OUT
= 250mA