LT1615 采用 ThinSOT 封装的微功率升压型 DC/DC 转换器

The LT®1615/LT1615-1 are micropower step-up DC/DC converters in a 5-lead low profile (1mm) ThinSOT package. The LT1615 is designed for higher power systems with a 350mA current limit and an input voltage range of 1.2V to 15V, whereas the LT1615-1 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 in a simple boost topology without the use of costly transformers. The LT1615’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
  • Low Profile (1mm) ThinSOT� Package
参数
LT1615 参数
应用
  • LCD Bias
  • Handheld Computers
  • Battery Backup
  • Digital Cameras
典型应用图
LT1615 典型应用
LT1615 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) *
LT1615ES5 SOT 5 E $2.01 
LT1615ES5#PBF SOT 5 E $2.01 
LT1615ES5#TR SOT 5 E $2.01  $1.70 
LT1615ES5#TRM SOT 5 E $2.01  $1.72 
LT1615ES5#TRMPBF SOT 5 E $2.01  $1.72 
LT1615ES5#TRPBF SOT 5 E $2.01  $1.70 
LT1615ES5-1 SOT 5 E $2.01 
LT1615ES5-1#PBF SOT 5 E $2.01 
LT1615ES5-1#TR SOT 5 E $2.01  $1.70 
LT1615ES5-1#TRM SOT 5 E $2.01  $1.72 
LT1615ES5-1#TRMPBF SOT 5 E $2.01  $1.72 
LT1615ES5-1#TRPBF SOT 5 E $2.01  $1.70 
LT1615IS5 SOT 5 I $2.31 
LT1615IS5#PBF SOT 5 I $2.31 
LT1615IS5#TR SOT 5 I $2.31  $1.96 
LT1615IS5#TRM SOT 5 I $2.31  $1.98 
LT1615IS5#TRMPBF SOT 5 I $2.31  $1.98 
LT1615IS5#TRPBF SOT 5 I $2.31  $1.96 
LT1615IS5-1 SOT 5 I $2.93 
LT1615IS5-1#PBF SOT 5 I $2.93 
LT1615IS5-1#TR SOT 5 I $2.93  $1.96 
LT1615IS5-1#TRM SOT 5 I $2.93  $1.98 
LT1615IS5-1#TRMPBF SOT 5 I $2.93  $1.98 
LT1615IS5-1#TRPBF SOT 5 I $2.93  $1.96 
LT1615 数据手册及相关资料下载
  1. 数据手册(英文) : LT1615/LT1615-1 - Micropower Step-Up DC/DC Converters in ThinSOT.PDF
  2. 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
  3. 设计要点 (英文) : DN232 - SOT-23 Switching Regulator with Integrated 1A Switch Delivers High Current Outputs in a Small Footprint.PDF
  4. 设计要点 (英文) : DN231 - Tiny Regulators Drive White LED Backlights.PDF
  5. 可靠性数据 : R386 Reliability Data .PDF