Datasheet

MAX8877/MAX8878
Low-Noise, Low-Dropout, 150mA Linear
Regulators with '2982 Pinout
_______________________________________________________________________________________ 5
3.00V
2.99V
3.01V
V
OUT
I
LOAD
50mA
10µs/div
LOAD-TRANSIENT RESPONSE
MAX8877-19
MAX887_EUK30, V
IN
= V
OUT
+ 0.5V,
C
IN
= 10µF, I
LOAD
= 0mA TO 50mA
3.00V
2.99V
3.01V
V
OUT
I
LOAD
50mA
10µs/div
LOAD-TRANSIENT RESPONSE
NEAR DROPOUT
MAX8877-20
MAX887_EUK30, V
IN
= V
OUT
+ 0.1V,
C
IN
= 10µF, I
LOAD
= 0mA TO 50mA
1V
0V
0V
2V
2V
5µs/div
MAX887_EUK25
SHUTDOWN EXIT DELAY
MAX8877-21
MAX887_EUK25, I
LOAD
= 50mA
V
SHDN
V
OUT
C
BP
= 0.01µF
C
BP
= 0.1µF
0V
0V
4V
2V
2V
5µs/div
MAX887_EUK50
SHUTDOWN EXIT DELAY
MAX8877-22
MAX887_EUK50, I
LOAD
= 50mA
V
SHDN
V
OUT
C
BP
= 0.01µF
C
BP
= 0.1µF
0V
0V
5V
2V
V
SHDN
V
OUT
500µs/div
ENTERING SHUTDOWN
MAX8877-23
MAX8878, NO LOAD
1ms/div
MAX887_EUK25, C
OUT
= 10µF, I
LOAD
= 10mA, C
BP
= 0.1µF
OUTPUT NOISE 10Hz TO 100kHz
V
OUT
50µV/div
MAX8877-16
100
0.01
0 100 150
REGION OF STABLE C
OUT
ESR
vs. LOAD CURRENT
0.1
MAX8877-17
LOAD CURRENT (mA)
C
OUT
ESR (Ω)
1
10
C
OUT
= 10µF
C
OUT
= 1µF
STABLE REGION
3.000V
2.999V
3.001V
3V
4V
V
IN
V
OUT
100µs/div
LINE-TRANSIENT RESPONSE
MAX8877-18
MAX887_EUK30, 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.)