AT1303
Preliminary Product Information
MicroPower Step-Up DC/DC Converter
Absolute Maximum Ratings
(T
a
=+25
0
C)
Parameter
Power supply voltage
LX pin voltage
LX pin output current
Allowable dissipation
Operating temperature
Storage temperature
Symbol
V
CC
V
LX
I
LX
P
D
T
OP
T
stg
Condition
—
—
—
TSSOP8
MSOP8
—
—
Rated Value
Min.
Max.
—
6.0
—
6.0
—
1.7
—
430
—
330
-30
+85
-55
+125
Unit
V
V
A
mW
mW
0
C
0
C
WARNING:
Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in
excess of absolute maximum ratings. Do not exceed these ratings.
Electrical Characteristics
(Ta=+25
0
C)
Parameter
Power Supply
Voltage
Input Voltage
Start-Up Voltage
Symbol
V
CC
V
IN
V
Start
I
2
Condition
Min.
2.5
1.5
Values
Typ.
-
-
1.0
60
100
1
1.220
380
90
0.23
1.4
0.8
1.0
70
7.5
170
Max.
5.5
5.5
1.1
70
110
5
1.244
-
95
0.26
1.7
1.2
1.02
90
-
-
Unit
V
V
V
μA
μA
μA
V
KHz
%
Ω
A
V
V
mV
mA
°C
I
OUT
=1mA V
IN
=0 2V
V
IN
= V
OUT
+0.5V(V
OUT
= 3.3V)
V
IN
= V
OUT
+0.5V(V
OUT
= 5.0V)
/SHDN=0V, V
IN
=5.5V
Close loop, V
OUT
=3.3V
V
OUT
=3.3V
V
OUT
=3.3V
V
OUT
=3.3V
-
50
90
-
1.200
-
85
0.2
1.0
0.4
0.98
50
-
-
Switch off Current
I
2
Shutdown Current
Feedback Reference
Switching
Frequency
Maximum Duty
LX ON Resistance
Current Limit
/SHDN Trip Level
LBI Trip Level
Hysteresis Width
(LBI Trip Level)
LBO/LD Sink
current
Thermal shutdown
I
Limit
I
3
V
REF
F
S
D
max
V
IN
= 2.0V , V
OUT
=3.3V, Duty=55%
V
OUT
=3.3V
VCC Falling
VCC Rising
I
LBO
LBO/LD=0.4V
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW:
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
3
05/05/26
AIMTRON [ AIMTRON TECHNOLOGY ]
