A1085
AiT Semiconductor Inc.
www.ait-ic.com
3A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
THERMAL SHUTDOWN AND CURRENT LIMIT FUNCTIONS
ELECTRICAL CHARACTERISTICS
Test Condition: CIN=10uF, COUT=22uF, TA = 25oC, unless otherwise noted.
Symbol
VREF
Parameter
Conditions
Min.
Typ.
Max.
1.262
1.275
Unit
V
I
OUT=10mA, VIN-VOUT=3V
1.238 1.25
1.225 1.25
Reference Voltage
10mA≦IOUT≦3A, 5V≦VIN-VOUT≦5V
A1085-1.8V
I
OUT=0mA, VIN=4.8V, TJ=25oC
1.782 1.80
1.764 1.80
1.818
1.836
V
V
V
V
10mA≦IOUT≦3A, 3.4V≦VIN≦7V
A1085-2.5V
IOUT=0mA, VIN=4.8V, TJ=25oC
10mA≦IOUT≦3A, 4.1V≦VIN≦7V
A1085-3.3V
IOUT=0mA, VIN=6.3V, TJ=25oC
10mA≦IOUT≦3A, 4.9V≦VIN≦8V
A1085-5.0V
IOUT=0mA, VIN=8.0V, TJ=25oC
10mA≦IOUT≦3A, 6.6V≦VIN≦10V
A1085-ADJ
2.475 2.50
2.450 2.50
2.525
2.550
VOUT
Output Voltage
3.267
3.234
3.3
3.3
3.333
3.366
4.95
4.90
5.0
5.0
5.05
5.10
I
OUT=10mA, 2.85V≦VIN≦10V
0.035
0.2
5
%
A1085-1.8V
IOUT=10mA, 3.4V≦VIN≦10V
A1085-2.5V
1
1
mV
mV
mV
%
Line Regulation
(Note1)
ΔVOUT
IOUT=10mA, 4.9V≦VIN≦10V
A1085-5.0V
5
IOUT=10mA, 6.6V≦VIN≦10V
A1085-ADJ
1
5
VIN-VOUT=3V, 10mA≦IOUT≦3A
A1085-1.8V
0.2
3
0.4
15
15
15
VIN-VOUT=3V, 0≦IOUT≦3A
A1085-2.5V
mV
mV
mV
Load Regulation
(Note1, 2)
ΔVOOT
VIN-VOUT=3V, 0≦IOUT≦3A
A1085-3.3V
3
VIN-VOUT=3V, 0≦IOUT≦3A
A1085-5.0V
3
VIN-VOUT=3V, 0≦IOUT≦3A
3
15
mV
V
Dropout Voltage (Note3)
Current Limit
VIN-VOUT
ILIMIT
ΔVOUT, ΔVREF=1%, IOUT=3A
VIN-VOUT=3V, TJ=25oC
1.3
1.5
3.2
4.5
A
REV1.2
-AUG 2006 RELEASED – SEP 2008 REVISED -
- 3 -
AITSEMI [ AiT Semiconductor ]
