Datasheet

MAX8516/MAX8517/MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
4 _______________________________________________________________________________________
GROUND CURRENT
vs. LOAD CURRENT
MAX8516/17/18 toc04
LOAD CURRENT (mA)
GROUND CURRENT (µA)
1000800600400200
275
300
325
350
375
250
0 1200
T
A
= +25
°
C
T
A
= -40
°
C
T
A
= +85
°
C
DROPOUT VOLTAGE
vs. LOAD CURRENT
MAX8516/17/18 toc05
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
800600400200
25
50
75
100
125
0
0 1000
LINE INPUT TRANSIENT
(V
IN
= +1.8V TO +2.5V, I
LOAD
= 1A)
MAX8516/17/18 toc06
100µs/div
V
OUT
AC-COUPLED
20mV/div
V
IN
AC-COUPLED
0.5V/div
LOAD-TRANSIENT RESPONSE
(I
LOAD
= 0.1A TO 1A)
MAX8516/17/18 toc07
40µs/div
V
OUT
AC-COUPLED
50mV/div
I
LOAD
1A/div
C
IN
= 220µF ELECTROLYTIC
CAP CLOSE TO IN
PSRR vs. FREQUENCY (MAX8516)
MAX8516/17/18 toc09
FREQUENCY (kHz)
PSRR (dB)
1001010.1
10
20
30
40
50
60
70
80
0
0.01 1000
I
LOAD
= 100mA
SHUTDOWN RESPONSE
MAX8516/17/18 toc08
100µs/div
V
OUT
1V/div
EN
2V/div
I
IN
1A/div
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V
IN
= +1.8V, V
OUT
= +1.5V, I
OUT
= 1A, C
OUT
= 4.7µF, C
IN
= 1µF, T
A
= +25°C.)