Datasheet

MAX8860
Low-Dropout, 300mA
Linear Regulator in µMAX
4 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
IN
= V
OUT
+ 0.5V, C
IN
= C
OUT
= 2.2µF, C
CC
= 33nF, T
A
= +25°C, unless otherwise noted.)
0
60
40
20
100
80
180
160
140
120
200
0123456
NO LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX8860 toc04
INPUT VOLTAGE (V)
SUPPLY CURRENT (µA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
20
60
40
120
100
80
160
0
140
180
0 10050 150 200 250 300
DROPOUT VOLTAGE vs. LOAD CURRENT
MAX8860 toc05
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
50
150
100
200
250
0 10050 150 200 250 300
FAULT DETECT THRESHOLD
vs. LOAD CURRENT
MAX8860 toc06
LOAD CURRENT (mA)
FAULT DETECT THRESHOLD (mV)
FAULT = HIGH
FAULT = LOW
-70
-50
-60
-30
-40
-10
-20
0
0.01 10.1 10 100 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX8860 toc07
FREQUENCY (kHz)
PSRR (dB)
200mA
I
LOAD
0
LOAD-TRANSIENT RESPONSE
MAX8860 toc10
400µs/div
V
OUT
20mV/div
V
IN
= V
OUT
+ 200mV
0.1 101 100 1000
OUTPUT NOISE SPECTRAL DENSITY
MAX8860 toc08
FREQUENCY (kHz)
NOISE (µV/√Hz)
0.01
0.1
1.0
10
C
OUT
= 2.2µF
C
OUT
= 10µF
I
LOAD
= 10mA
V
OUT
500µV/div
OUTPUT NOISE
(10Hz TO 1MHz)
MAX8860 toc09
1ms/div
I
LOAD
= 200mA
+4.3V
LINE-TRANSIENT RESPONSE
MAX8860 toc12
500µs/div
V
OUT
2mV/div
V
IN
+3.3V
I
LOAD
= 200mA