Datasheet

High PSRR, Low-Dropout, 150mA
Linear Regulators
DROPOUT VOLTAGE vs. LOAD CURRENT
MAX8891/2 toc04
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV))
125100755025
40
80
120
160
200
0
60
100
140
180
20
0150
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
DROPOUT VOLTAGE vs. OUTPUT VOLTAGE
MAX8891/2 toc05
OUTPUT (V)
DROPOUT VOLTAGE (mV)
3.02.82.62.42.2
50
100
150
200
250
0
2.0 3.2
I
OUT
= 80mA
GROUND PIN CURRENT vs. INPUT VOLTAGE
MAX8891/2 toc06
INPUT VOLTAGE (V)
GROUND PIN CURRENT (μA)
4321
150
200
50
100
250
300
350
0
05
I
OUT
= 0mA
GROUND PIN CURRENT vs. LOAD CURRENT
MAX8891/2 toc07
LOAD CURRENT (mA)
GROUND PIN CURRENT (μA)
125100755025
50
100
150
200
250
300
350
0
0 150
V
IN
= 3.8V
V
IN
= 5.5V
GROUND PIN CURRENT vs. TEMPERATURE
MAX8891/2 toc08
TEMPERATURE (°C)
GROUND PIN CURRENT (μA)
603510-15
35
40
45
50
30
-40 85
Maxim Integrated 3
MAX8891/MAX8892
Typical Operating Characteristics
(V
IN
= V
OUT
+ 0.5V, C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25°C, unless otherwise noted.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX8891/2 toc01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
54321
0.5
1.0
1.5
2.0
2.5
3.0
0.0
06
I
OUT
= 120mA
I
OUT
= 0mA
OUTPUT VOLTAGE ACCURACY
vs. LOAD CURRENT
MAX8891/2 toc02
LOAD CURRENT (mA)
% DEVIATION (%)
125100755025
-0.4
-0.2
0
0.2
0.4
0.6
-0.6
0150
OUTPUT VOLTAGE ACCURACY
vs. TEMPERATURE
MAX8891/2 toc03
TEMPERATURE (°C)
% DEVIATION (%)
603510-15
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
-40 85
I
OUT
= 1mA
PSRR vs. FREQUENCY
MAX8891/2 toc09
FREQUENCY (kHz)
PSRR (dB)
0.1 1 10 100
40
50
60
10
20
30
70
80
90
0
0.01 1000
I
LOAD
= 10mA