AT1310
Preliminary Product Information
MicroPower Charge Pump Converter
Features
• Step-Up type Charge Pump
• Input Range 2.7V to 5V
• Low input current 25µA
• High Output Voltage Accuracy
±4%
• 100mA output current with VIN≥3.0V
50mA output current with VIN≥2.7V
• High Frequency 750KHz operation
• SOT-26 Package
General Description
The AT1310 is a MicroPower switched-capacitor
voltage converter that delivers a regulated output.
No external inductor is required for operation.
Using three small capacitors, the AT1310 can
deliver up to 100mA to the regulated output. The
AT1310 features very low quiescent current and
high frequency over a large portion of its load
range making this device ideal for battery-powered
applications.
Applications
• Cellular Phones
• LED Backlight Driver
• DSC Flash Unit for IGBT trigger Level
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9, Park Avenue. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email:
service@aimtron.com.tw
1
AT1310
Preliminary Product Information
MicroPower Charge Pump Converter
Pin Configuration(or Pin Assignment)
Ordering Information
Part number
AT1310X
AT1310X_PBF
: Date Code
*
For more marking information, contact out sales representative directly
Package
SOT-26
SOT-26, PBF
Marking
Date Code
,Date Code with one bottom line
Pin Description
Pin No.
1
2
3
4
5
6
Symbol
OUT
GND
/SHDN
CN
VIN
CP
I/O
O
P
I
-
P
+
Description
Regulated Output
Ground
Chip Enable Input
Flying Capacitor negative terminal
Input Supply
Flying Capacitor positive terminal
7F, No.9, Park Avenue. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email:
service@aimtron.com.tw
2
AT1310
Preliminary Product Information
MicroPower Charge Pump Converter
Absolute Maximum Ratings
*1
(T
a
=+25
0
C)
Parameter
Power supply voltage
OUT pin voltage
SHDN pin voltage
Allowable dissipation
Operating temperature
Storage temperature
Symbol
V
IN
V
OUT
V
SHDN
P
D
T
OP
T
stg
Condition
—
—
—
—
—
—
Rated Value
Min.
Max.
—
6.0
—
6.0
—
6.0
—
150
-30
+85
-55
+125
Unit
V
V
V
mW
0
C
0
C
1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability
.
Electrical Characteristics
Parameter
Input Voltage
No Load Supply
Current
Output Voltage
Symbol
V
IN
V
Start
V
OUT
V
OUT
=5.0V
2.7V< V
IN
<5.0V,I
OUT
=0mA,
/SHDN=V
IN
2.7V< V
IN
<5.0V ,I
OUT
≤50mA
3.0V< V
IN
<5.0V ,I
OUT
≤100mA
2.7V< V
IN
<3.6V ,I
OUT
=0mA,
/SHDN=0V
3.6V< V
IN
<5.0V ,I
OUT
=0mA,
/SHDN=0V
V
IN
=3V, I
OUT
=50mA
V
IN
=3V, I
OUT
=100mA
Efficency
Frequency
/SHDN Input
Threshold
η
F
V
IH
V
IL
I
IH
I
IL
OUT Turn-ON time
Short-Circuit Current
t
ON
I
SC
/SHDN= V
IN
/SHDN= 0V
V
IN
=3V, I
OUT
=0mA
V
IN
=3V,V
OUT
=GND,/SHDN=3V
V
IN
=3V, I
OUT
=50mA
V
IN
=2.7V, I
OUT
=50mA
Oscillator Free Running
Condition
Min.
2.7
-
4.8
4.8
-
-
-
-
-
-
-
1.4
-
-2
-2
-
-
Values
Typ.
-
25
5.0
5.0
-
-
25
30
83
92
750
-
-
-
-
2
300
Max.
V
OUT
40
5.2
5.2
1
4
-
-
-
-
-
-
0.3
2
2
-
-
(Ta=+25
0
C)
Unit
V
μA
V
V
μA
μA
mV
mV
%
%
KHz
V
V
μA
μA
ms
mA
Shutdown Current
I
SHDN
Ripple Current
V
Ripple
/SHDN Input Current
7F, No.9, Park Avenue. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email:
service@aimtron.com.tw
3
AT1310
Preliminary Product Information
MicroPower Charge Pump Converter
Typical characteristics :
7F, No.9, Park Avenue. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email:
service@aimtron.com.tw
4
AT1310
Preliminary Product Information
MicroPower Charge Pump Converter
7F, No.9, Park Avenue. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/8/2006 REV:1.1
Email:
service@aimtron.com.tw
5
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