CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
5.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech
Brief
TB379.
6. For
JC
, the “case temp” location is the center of the exposed metal pad on the package underside.
7. ABS max voltage rating is defined as the voltage applied for a lifetime average duty cycle above 6V of 1%.
8. Electromigration specification defined as lifetime average junction temperature of +110°C where max rated DC current = lifetime average current.
Electrical Specifications
Unless otherwise noted, all parameters are established over the following specified conditions:
2.2V < V
IN
< 6V, V
OUT
= 0.5V, T
J
= +25°C, I
LOAD
= 0A. Applications must follow thermal guidelines of the package to determine worst case junction
temperature. Please refer to
“Functional Description” on page 12
and Tech Brief
TB379.
Boldface limits apply across the operating temperature range,
-40°C to +125°C. Pulse load techniques used by ATE to ensure T
J
= T
A
defines established limits.
PARAMETER
DC CHARACTERISTICS
DC Output Voltage Accuracy
V
OUT
V
OUT
options: 1.8V.
2.2V < V
IN
< 6V; I
LOAD
= 0A
V
OUT
options: 1.8V.
2.2V < V
IN
< 6V; 0A < I
LOAD
< 3A
V
OUT
options: 2.5V
6V < V
IN
< 6V; I
LOAD
= 0A
V
OUT
options: 2.5V
6V < V
IN
< 6V; 0A < I
LOAD
< full load
Feedback Pin (ADJ Version)
DC Input Line Regulation
V
ADJ
(V
OUT
Low Line - V
OUT
High Line)/
V
OUT
Low Line
(V
OUT
No Load - V
OUT
High Load)/
V
OUT
No Load
0A < I
LOAD
< full load
2.2V < V
IN
< 3.6V, V
OUT
= 1.8V
2.9V < V
IN
< 6V, V
OUT
= 2.5V
ISL80103. 0A < I
LOAD
< 3A,
2.9V < V
IN
< 6V; V
OUT
= 2.5V for adjustable version.
V
OUT
= 1.8V and 2.5V for fixed version.
ISL80102. 0A < I
LOAD
< 2A
2.9V < V
IN
< 6V; V
OUT
= 2.5V for adjustable version.
V
OUT
= 1.8V and 2.5V for fixed version.
Feedback Input Current
Ground Pin Current
I
Q
V
ADJ
= 0.5V
I
LOAD
= 0A, V
OUT
+ 0.4V < V
IN
< 6V for all options.
V
OUT
= 2.5V for adjustable option.
I
LOAD
= 3A, V
OUT
+ 0.4V < V
IN
< 6V for all options.
V
OUT
= 2.5V for adjustable option.
-1.8
491
-0.4
-0.8
-0.8
500
0.1
0.1
-0.2
-1.8
0.5
-1.8
509
0.4
0.8
0.8
0.5
1.8
%
%
%
%
mV
%
%
%
SYMBOL
TEST CONDITIONS
MIN
(Note
9)
TYP
MAX
(Note
9)
UNITS
DC Output Load Regulation
-0.6
-0.2
0.6
%
0.01
7.5
8.5
1
9
12
µA
mA
mA
Submit Document Feedback
4
FN6660.7
April 8, 2016
ISL80102, ISL80103
Unless otherwise noted, all parameters are established over the following specified conditions:
2.2V < V
IN
< 6V, V
OUT
= 0.5V, T
J
= +25°C, I
LOAD
= 0A. Applications must follow thermal guidelines of the package to determine worst case junction
temperature. Please refer to
“Functional Description” on page 12
and Tech Brief
TB379.
Boldface limits apply across the operating temperature range,
-40°C to +125°C. Pulse load techniques used by ATE to ensure T
J
= T
A
defines established limits. (Continued)
PARAMETER
Ground Pin Current in Shutdown
SYMBOL
I
SHDN
V
DO
TEST CONDITIONS
EN = 0V, V
IN
= 5V
EN = 0V, V
IN
= 6V
Dropout Voltage (Note
10)
ISL80103, I
LOAD
= 3A, V
OUT
= 2.5V
ISL80102, I
LOAD
= 2A, V
OUT
= 2.5V
ISL80103, I
LOAD
= 3A, V
OUT
= 5.5V
ISL80102, I
LOAD
= 2A, V
OUT
= 5.5V
Output Short Circuit Current
(3A Version)
Output Short Circuit Current
(2A Version)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
AC CHARACTERISTICS
Input Supply Ripple Rejection
PSRR
f = 1kHz, I
LOAD
= 1A; V
IN
= 2.2V
f = 120Hz, I
LOAD
= 1A; V
IN
= 2.2V
Output Noise Voltage
ENABLE PIN CHARACTERISTICS
Turn-on Threshold
Turn-off Threshold
Hysteresis
Enable Pin Turn-on Delay
Enable Pin Leakage Current
SOFT-START CHARACTERISTICS
Reset Pull-Down resistance
Soft-Start Charge Current
PG PIN CHARACTERISTICS
V
OUT
PG Flag Threshold
V
OUT
PG Flag Hysteresis
PG Flag Low Voltage
PG Flag Leakage Current
NOTES:
9. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
10. Dropout is defined by the difference in supply V
IN
and V
OUT
when the supply produces a 2% drop in V
OUT
from its nominal value.
11. Minimum cap of 10µF X5R/X7R on V
IN
and V
OUT
required for stability.
12. If the current limit for in-rush current is acceptable in application, do not use this feature (leave SS pin open). Used only when large bulk capacitance
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