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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 Ref...

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SeekIC No. : 004289246 Detail

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.•...

AT1309 Data Sheet

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Part Number:
AT1309
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/7/15

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Product Details

Description



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


Application

• STN/OLED Bias
• Personal Digital Assistants(PDAs)
• DSC


Pinout

Connection Diagram


Specifications

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



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. AT1309 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.




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