LP3120概述/LP3120 General Description：
LP3120是一款低噪音、固定频率的电荷泵DC/DC变换器，使用整倍数转换，在DC-DC应用中提高效率。由此，当输入电压为1.8V~4.5V时，LP3120可提供固定的电压或高至270mA的电流。当输入电压为2.7V~5.5V时，可提供固定的电压或高至270mA的电流。 只需3个外接电容。热关断保护设置，在VOUT到GND持续短路的情况下自我保护。内置的软启动系统有效防止启动时过大电流的冲击。将内部开关频率设定为400KHz，因而能够采用小表面贴装型电容器。关断时负载和VIN断开，从而使静态电流低于1μA。LP3120采用小外型SOT-23-6封装。
The LP3120 is a high performance charge pump DC/DC converter that produces a regulated 5V output.No external inductor is required for operation. The operating voltage range is 2.8V to V OUT . Internal soft-start circuitry effectively reduces the in-rush current both while start-up and mode change.The LP3120 features very low quiescent current, over current protection and short circuit protection.The LP3120 is available in SOT23-6 package.
LP3120特性//LP3120 Features:
低噪音持续频率工作
输出电流：高达250mA
自动软启动
输入电压范围：2.7V~5.0V
无需电感
400KHz开关频率
超低停机电流：ICC＜1μA;
LP3120提供SOT-23-6封装(无铅封装)
2x Mode for Ultra-High Efficiency
2.8V to V OUT Range Input Voltage
Soft Start Function
Built-In Short-Circuit Protection
340KHz Fixed frequency
Built-in Thermal Protection
Over Current Protection Function
I SD <1uA in Shutdown
LP3120 SOT23-6 Package
RoHS Compliant and 100% Lead (Pb)-Free
LP3120应用/LP3120 Applications:
蜂窝电话
数码相机
MP3播放器
PDA、笔记本电脑
GPS接收机
LCD Panel
Cellular and Smart mobile phone
PDA/DSC
Flash LED Driver
LP3120 Order Information:
LP3120 Typical Application Circuit:
LP3120 Marking Information:
| Device | Marking | |
| LP3120B6F | LPS D3YWX |
|
| Marking indication: Y:Production year W:Production week X: Series Number |
||
LP3120 Functional Pin Description:
LP3120 Function Block Diagram:
LP3120 Application Information:
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