Owner's manual

MAX15027/MAX15028
1.425V to 3.6V Input, 1A Low-Dropout
Regulators with BIAS Input
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1; V
IN
= 1.8V, V
OUT
= 1.2V, EN = IN for MAX15027, EN = BIAS for MAX15028, I
OUT
= 100mA, T
A
= T
J
= -40°C to
+125°C. Typical values are at T
A
= +25°C, unless otherwise noted.) (Note 2)
Note 2: All devices are 100% production tested at T
A
= +25°C. Limits over the operating temperature range are guaranteed by
design and characterization.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OUT
Output Voltage Range V
OUT
0.5 3.3 V
Load Regulation I
OUT
= 1mA to 1A 0.01 mV/mA
Line Regulation V
IN
= 1.425V to 3.6V, I
OUT
= 1mA 4 mV
Dropout Voltage (V
IN
- V
OUT
)V
DO
I
OUT
= 1A, V
IN
= 1.5V 75 225 mV
Output Current Limit I
LIM
V
FB
= 300mV 1.4 1.7 2.0 A
FB
Threshold Accuracy V
FB
V
OUT
= 0.5V to 3.3V, V
IN
= (V
OUT
+ 0.3V)
to 3.6V, I
OUT
= 1mA to 1A
0.489 0.499 0.509 mV
Input Current I
FB
V
FB
= 0.688V 0.1 0.2 µA
EN/SOFT-START
V
IH
1.05
Enable Input Threshold
(MAX15028)
V
IL
V
BIAS
= 5V
0.4
V
V
IH
1.05
Enable Input Threshold
(MAX15027)
V
IL
V
IN
= 1.8V
0.4
V
Soft-Start Charging Current I
SS
5µA
Soft-Start Reference Voltage V
SS
0.499 V
THERMAL SHUTDOWN
Thermal-Shutdown Threshold T
J
rising 165 °C
Thermal-Shutdown Hysteresis 15 °C