这是一sgm3141电流调节电荷泵
ideal for
powering high brightness LEDs for camera
理想的为高亮度LED相机
flash
applications. The charge pump can be set to
Flash应用程序。电荷泵可设置
regulate
two current levels for FLASH and TORCH
规范的Flash和火炬两个电流水平
modes.
模式。
The
SGM3141 automatically switches modes between
自动开关模式之间的sgm3141
step-up
and step-down ensuring that LED current does
升压和降压LED电流是保证
not
depend on the forward voltage. It switches at 2MHz,
不依赖于正向电压。它的开关在2MHz，
allowing
the use of tiny components. The supply
允许使用小部件。供应
voltage
ranges from 2.7V to 5.5V and is ideally suited
从2.7V至5.5V电压范围和非常适合
for all
applications powered by a single LI-Ion battery
对于所有的应用程序由一个单一的锂离子电池供电
cell or
three to four NiCd, NiMH, or Alkaline battery
细胞或三到四镍镉，镍氢电池，碱性电池
cells.
细胞。
The
SGM3141 also features a very low shutdown
该sgm3141还具有一个非常低的关机
current,
an automatic soft-start mode to limit inrush
目前，自动软启动方式限制涌流
current,
as well as over current, over voltage and over
目前，以及过电流，过电压、过
thermal
shutdown control.
热关断控制。
A low
current sense reference voltage (50mV) allows
低电流检测基准电压（50mV）允许
the use
of small 0603 current sensing resistors.
0603小的电流传感电阻的使用。
The
SGM3141 is available in Green DFN3×3-10L
在绿色的sgm3141 DFN3×3-10l是可用的
package
and is specified over an ambient temperature
包和指定超过环境温度
range of
-40℃ to +85℃.
系列40℃+
85℃。
