Datasheet

High PSRR, Low-Dropout, 150mA
Linear Regulators
LOAD TRANSIENT RESPONSE
dl/dt = 0.5mA/μs
MAX8891/2 toc10
200
μ
s/div
V
IN
= 3.5V
I
LOAD
25mA/div
V
IN
10mV/div
V
OUT
10mV/div
50mA
dl/dt = 0.5mA/μs
10mA10mA
LOAD TRANSIENT RESPONSE
dl/dt = 5mA/μs
MAX8891/2 toc11
20
μ
s/div
V
IN
= 3.5V
I
LOAD
25mA/div
V
IN
10mV/div
V
OUT
10mV/div
50mA
dl/dt = 0.5mA/μs
10mA10mA
LOAD TRANSIENT RESPONSE
dl/dt = 20mA/μs
MAX8891/2 toc12
4
μ
s/div
V
IN
= 3.5V
I
LOAD
25mA/div
V
IN
10mV/div
V
OUT
10mV/div
50mA
dl/dt = 20mA/μs
10mA10mA
STARTUP WAVEFORM
MAX8891/2 toc13
10
μ
s/div
V
IN
= 3.5V
R
LOAD
= 30Ω
V
SHDN
2V/div
V
OUT
500mV/div
ON
OFF
SHUTDOWN WAVEFORM
MAX8891/2 toc14
40
μ
s/div
V
IN
= 3.5V
R
LOAD
= 30Ω
V
OUT
500mV/div
V
SHDN
2V/div
ON
OFF
4 Maxim Integrated
MAX8891/MAX8892
LINE TRANSIENT RESPONSE
dv/dt = 500mV/μs
MAX8891/2 toc15
40
μ
s/div
R
LOAD
= 30Ω
V
IN
500mV/div
V
OUT
10mV/div
3.5V
dv/dt = 500mV/μs
4V4V
LINE TRANSIENT RESPONSE
dv/dt = 200mV/μs
MAX8891/2 toc16
40
μ
s/div
R
LOAD
= 30Ω
V
IN
1V/div
V
OUT
10mV/div
3.5V
dv/dt = 200mV/μs
5V5V
REGION OF STABLE C
OUT
ESR
vs. LOAD CURRENT
MAX8891/2 to17
LOAD CURRENT (mA)
C
OUT
ESR (Ω)
75 10025 12550
0.1
1
10
100
0.01
0 150
STABLE REGION
Typical Operating Characteristics (continued)
(V
IN
= V
OUT
+ 0.5V, C
IN
= 1µF, C
OUT
= 1µF, T
A
= +25°C, unless otherwise noted.)