LT1617 Micropower Inverting DC/DC Converters in SOT-23
The LT®1617/LT1617-1 are micropower inverting DC/DC converters in a 5-lead SOT-23 package. The LT1617 is designed for higher power systems with a 350mA current limit and an input voltage range of 1.2V to 15V, whereas the LT1617-1 is intended for lower power and single-cell applications with a 100mA current limit and an extended input voltage range of 1V to 15V. Otherwise, the two devices are functionally equivalent. Both devices feature a quiescent current of only 20µA at no load, which further reduces to 0.5µA 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 36V switch allows high voltage outputs up to –34V to be easily generated without the use of costly transformers. The LT1617’s low off-time of 400ns 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
- Low Quiescent Current:
20µA in Active Mode
<1µA in Shutdown Mode
- Operates with VIN as Low as 1V
- Low VCESAT Switch: 250mV at 300mA
- Uses Small Surface Mount Components
- High Output Voltage: Up to –34V
- Tiny 5-Lead SOT-23 Package
参数
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应用
- LCD Bias
- Handheld Computers
- Battery Backup
- Digital Cameras
典型应用图
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LT1617 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) * |
| LT1617ES5 |
SOT |
5 |
E |
$2.01 |
|
| LT1617ES5#PBF |
SOT |
5 |
E |
$2.01 |
|
| LT1617ES5#TR |
SOT |
5 |
E |
$2.01 |
$1.70 |
| LT1617ES5#TRM |
SOT |
5 |
E |
$2.01 |
$1.72 |
| LT1617ES5#TRMPBF |
SOT |
5 |
E |
$2.01 |
$1.72 |
| LT1617ES5#TRPBF |
SOT |
5 |
E |
$2.01 |
$1.70 |
| LT1617ES5-1 |
SOT |
5 |
E |
$2.01 |
|
| LT1617ES5-1#PBF |
SOT |
5 |
E |
$2.01 |
|
| LT1617ES5-1#TR |
SOT |
5 |
E |
$2.01 |
$1.70 |
| LT1617ES5-1#TRM |
SOT |
5 |
E |
$2.01 |
$1.72 |
| LT1617ES5-1#TRMPBF |
SOT |
5 |
E |
$2.01 |
$1.72 |
| LT1617ES5-1#TRPBF |
SOT |
5 |
E |
$2.01 |
$1.70 |
LT1617 数据手册及相关资料下载
- 数据手册(英文) : LT1617/LT1617-1 - Micropower Inverting DC/DC Converters in SOT-23.PDF
- 设计要点 (英文) : DN223 - SOT-23 DC/DC Converters Generate Up to ±35V Outputs and Consume Only 20µA of Quiescent Current.PDF
- 设计要点 (英文) : DN232 - SOT-23 Switching Regulator with Integrated 1A Switch Delivers High Current Outputs in a Small Footprint.PDF
- 设计要点 (英文) : DN231 - Tiny Regulators Drive White LED Backlights.PDF
- 可靠性数据 : R303 Reliability Data .PDF
