Datasheet

MAX8516/MAX8517/MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
_______________________________________________________________________________________ 3
Note 1: Specifications to T
A
= -40°C are guaranteed by design, not production tested.
Note 2: Measurements at high current are pulse tested, such that the junction temperature is ambient temperature. Minimum supply
voltage for output accuracy must be at least 1.425V.
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. V
IN
= +1.8V, V
OUT
= +1.5V, EN = IN, I
OUT
= 1mA, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
POR (MAX8518 ONLY)
POR Reset Threshold V
FB
falling, V
HYS
= 10mV, V
IN
= 1.425V to 3.6V 440 450 460 mV
POR Output Voltage Low V
FB
= 0.4V or 0.6V, I
POR
= 1mA 25 200 mV
POR Output Current High V
POR
= 3.6V 0.001 1 µA
POR Rising Delay Time From FB to POR 105 150 210 ms
EN
EN rising 1.2
Enable Input Threshold V
IN
= 1.425V to 3.6V
EN falling 0.4
V
Enable Input Bias Current V
EN
= 0 or 3.6V -1 +1 µA
THERMAL SHUTDOWN
T
J
rising +165
Thermal-Shutdown Threshold Output on or off
T
J
falling +150
°C
OUTPUT TRANSIENT
Load Transient I
OUT
= 20mA to 1A to 20mA, t
RISE
= t
FALL
= 1µs 3 %
Line Transient δV
IN
= 0.5V, t
RISE
= t
FALL
= 5µs 3 %
Typical Operating Characteristics
(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.)
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX8516/17/18 toc01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.02.41.81.20.6
1.35
1.40
1.45
1.50
1.55
1.60
1.30
03.6
T
A
= -40
°
C TO +85
°
C
OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX8516/17/18 toc02
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
800600400200
1.492
1.494
1.496
1.498
1.500
1.502
1.490
0 1000 1200
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
GROUND CURRENT
vs. INPUT VOLTAGE
MAX8516/17/18 toc03
INPUT VOLTAGE (V)
GROUND CURRENT (µA)
3.02.40.6 1.2 1.8
100
200
300
400
500
0
03.6
I
LOAD
= 1A
I
LOAD
= 0.5A
I
LOAD
= 0A