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參數資料
| 型號： | AT1308 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Preliminary Product Information Micro-Power Step up DC-DC Converter |
| 中文描述： | 初步產品信息微功率升壓DC - DC轉換器 |
| 文件頁數： | 1/15頁 |
| 文件大小： | 377K |
| 代理商： | AT1308 |
AT1308
Preliminary Product Information
Micro-Power Step up DC-DC Converter
Feature
Operating Voltage:2.5V~6.0V
High Operating Frequency: 1MHz
Built-in N-MOS, R
ds(on)
≒
0.3
Ω
(TYP)
High Output Voltage: Up to 28V
Shutdown Current <1
μ
A
Built-in Cycle-by-Cycle Current-limited.
Built-in Soft-Start Function.
1.5% 1.23V Reference.
Tiny SOT-25 Package
Application
STN/OLED Bias
Personal Digital Assistants (PDAs)
DSC
Block Diagram
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
1
Rev A ; 01/18/05
LX
VBG
+
-
FB
ON/OFF
Control
Logic
GND
Control Logic
EN
N
VBG
1.23V
VIN
+
-
Current Limit
400mA
Soft-Start
Thermal
Protection
Description
The AT1308 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 1.0
MHz current-mode PWM control with a built-in
0.3
Ω
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 circuitry eliminates inrush current during
start-up. The AT1308 is available in 5-pin SOT-25
packages.
Aimtron reserves the right without notice to change this circuitry and specifications.
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