LT3463A Dual Micropower DC/DC Converters with Schottky Diodes
The LT®3463/LT3463A are dual micropower DC/DC converters with internal Schottky diodes in a 10-lead 3mm x 3mm DFN package. Negative and positive LT3463 converters have a 250mA current limit. The LT3463A positive converter also has a 250mA limit, while the negative converter has a 400mA limit. Both devices have an input voltage range of 2.4V to 15V, making them ideal for a wide variety of applications. Each converter features a quiescent current of only 20µA, which drops to under 1µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 42V switch enables high voltage outputs up to ±40V to be easily generated without the use of costly transformers. The low 300ns offtime permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications
产品特点 Features
- Generates Well-Regulated Positive and Negative Outputs
- Low Quiescent Current:
20µA (per Converter) in Active Mode
<1µA in Shutdown Mode
- Internal 42V Power Switches
- Internal 42V Schottky Diodes
- Low VCESAT Switch: 180mV at 150mA
- Input Voltage Range: 2.4V to 15V
- High Output Voltages: Up to ±40V
- Low Profile (0.8mm) 3mm x 3mm DFN Package
参数
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应用
- CCD Bias
- LCD Bias
- Handheld Computers
- Digital Cameras
典型应用图
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LT3463A 订购信息和价格参考Package Variations and Pricing
| 器件型号 |
封装 |
引脚 |
温度 |
价格 (以 1 ~ 99 片为批量) |
价格 (以 1000 片为批量) * |
| LT3463AEDD |
DFN |
10 |
E |
$2.79 |
$1.95 |
| LT3463AEDD#PBF |
DFN |
10 |
E |
$2.79 |
$1.95 |
| LT3463AEDD#TR |
DFN |
10 |
E |
|
$2.15 |
| LT3463AEDD#TRPBF |
DFN |
10 |
E |
|
$2.15 |
| LT3463EDD |
DFN |
10 |
E |
$2.79 |
$1.95 |
| LT3463EDD#PBF |
DFN |
10 |
E |
$2.79 |
$1.95 |
| LT3463EDD#TR |
DFN |
10 |
E |
|
$2.15 |
| LT3463EDD#TRPBF |
DFN |
10 |
E |
|
$2.15 |
LT3463A 数据手册及相关资料下载
- 数据手册(英文) : LT3463/LT3463A - Dual Micropower DC/DC Converters with Schottky Diodes.PDF
- 设计要点 (中文) : DN359 - Dual DC/DC Converter with Integrated Schottkys Generates ±40V Outputs and Consumes Only 40µA Quiescent Current.PDF
- 设计要点 (英文) : DN359 - Dual DC/DC Converter with Integrated Schottkys Generates ±40V Outputs and Consumes Only 40µA Quiescent Current.PDF
- 可靠性数据 : R390 Reliability Data .PDF
