Datasheet

MAX1792
500mA Low-Dropout
Linear Regulator in µMAX
5
Maxim Integrated
OUTPUT NOISE DC TO 1MHz
MAX1792-10
20ms/div
V
OUT
200μV/div
V
OUT
= 3.3V
R
OUT
= 66Ω (50mA)
100
0.01
0 200100 400 600
REGION OF STABLE C
OUT
ESR
vs. LOAD CURRENT
0.1
1
10
MAX1792-11
LOAD CURRENT (mA)
C
OUT
ESR (Ω)
300 500
700
800
STABLE REGION
C
OUT
= 3.3μF
C
OUT
= 10μF
LOAD-TRANSIENT RESPONSE
MAX1792-12
10μs/div
I
OUT
500mA/div
V
OUT
20mV/div
V
IN
= V
OUT
+ 500mV
C
IN
= 10μF
R
OUT
= 660Ω TO 6.6Ω (5mA TO 500mA)
60
70
65
80
75
90
85
95
-40 10-15 35 60 85
GROUND-PIN CURRENT
vs. TEMPERATURE
MAX1792-07
TEMPERATURE (°C)
GROUND-PIN CURRENT (μA)
V
IN
= V
OUT
+ 500 mV
I
OUT
= 0A
-80
0
0.01 0.1 1000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
-10
-30
-60
-70
MAX1792-08
FREQUENCY (kHz)
PSRR (dB)
110
-50
-40
-20
100
C
OUT
= 3.3μF
I
OUT
= 50mA
0.1 1 10 100 1000
OUTPUT SPECTRAL NOISE DENSITY
vs. FREQUENCY
MAX1792-09
FREQUENCY (kHz)
OUTPUT SPECTRAL NOISE DENSITY (μV/√Hz)
10
0.001
0.01
0.1
1
C
OUT
= 3.3μF
I
OUT
= 50mA
Typical Operating Characteristics (continued)
(MAX1792EUA33, V
IN
= V
OUT
+ 500mV, SHDN = IN, C
IN
= 1µF, C
OUT
= 3.3µF, T
A
= +25°C, unless otherwise noted.)