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Part Number: AT1309
Description: The AT1309 step-up converter is designed for small or medium size LCD panel of high bias voltage with ...
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AT1309
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DataSheet
General Description
AT1309 General Description
The AT1309 step-up converter is designed for small or medium size LCD panel of high bias voltage with a constant current to provide PDAs, and other hand-held devices. It features a fast 1.4 MHz current-mode PWM control with a built-in 0.3 N-MOS that allows for smaller capacitor and inductor. Fault condition protection uses cycle-by -cycle current limiting to sense maximum inductor current and thermal protection. Also included soft-start eliminates inrush current during start-up.
The AT1309 is available in 5-pin SOT-25 packages.
AT1309 Maximum Ratings
| Parameter |
Rated Value |
Unit | |
| VIN voltage |
-0.3 to +6.5 |
V | |
| LX voltage |
-0.3 to +30 |
V | |
| EN , FB to GND |
-0.3 to +6.5 |
V | |
| Switch Current (ILX) |
1.8 |
A | |
| Continuous power dissipation (SOT-25 Ta=+25) |
0.25 |
W | |
| Operating Junction Temperature Range |
-30 to 85 |
||
| Lead Temperature (Soldering 5 sec) |
260 |
||
| Storage Temperature |
-65 to 125 |
||
| Package Thermal Resistance ( JA) |
250 |
/W | |
| ESD Susceptibility*2 | HBM |
2 |
KV |
| MM |
200 |
V | |
AT1309 Features
•Operating Voltage:2.5V to 6.0V.
•High Operating Frequency: 1.4MHz
•High Output Voltage: Up to 28V
•Shutdown Current <1µA
•Digital Dimming Control.
•Built-in Cycle-by Cycle Current-Limiting.
•Built-in Soft-Start Function.
•±1.5% 1.23V Reference Voltage
•Tiny SOT-25 Package
•High Operating Frequency: 1.4MHz
•High Output Voltage: Up to 28V
•Shutdown Current <1µA
•Digital Dimming Control.
•Built-in Cycle-by Cycle Current-Limiting.
•Built-in Soft-Start Function.
•±1.5% 1.23V Reference Voltage
•Tiny SOT-25 Package
AT1309 Typical Application
• STN/OLED Bias
• Personal Digital Assistants(PDAs)
• DSC
• Personal Digital Assistants(PDAs)
• DSC
AT1309 Connection Diagram
AT1309X-GRE
PDF/DataSheet Download
- Datasheet: AT1309X-GRE
- File Size: 294314 KB
- Manufacturer: AIMTRON
- Click here to Download
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