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ACE701

ACE701

  • 厂商:

    ACE

  • 封装:

  • 描述:

    ACE701 - PFM STEP-UP DC/DC Converter with High Efficiency and Low Noise - ACE Technology Co., LTD.

  • 详情介绍
  • 数据手册
  • 价格&库存
ACE701 数据手册
                                                                                           ACE701                                               Technology PFM STEP-UP DC/DC Converter with High Efficiency and Low Noise Description The ACE701 series are CMOS-based PFM step-up DC-DC Converter. The converter can start up by supply voltage as low as 0.8V, and capable of delivering maximum 200mA output current at 3.3V output with 1.8V input Voltage. Quiescent current drawn from power source is as low as 5.5uA. All of these features make ACE701 series be suitable for the portable devices, which are supplied by a single battery to four-cell batteries. To reduce the noise caused by the switch regulator, ACE701 is well considerated in circuit design and manufacture. So that the interferer to other circuits by the device is reduced greatly. ACE701 integrates stable reference circuits and trimming technology, so it can afford high precision and low temperature-drift coefficient of the output voltage. ACE701 is available in SOT-89-3、SOT-23-3、SOT-89-5 and SOT-23-5 packages which is PB free. And in 5-pin packages, such as SOT-23-5 and SOT-89-5, the device can be switch on or off easily by CE pin, to minimize the standby supply current.  Features • • • • • • • • • • • Deliver 200mA at 3.3V Output voltage with 1.8V input Voltage Low start-up voltage (when the output current is 1mA)--------------------------0.8V The converter output voltage can be adjusted from 2.5V~6.0V(In 0.1V step) Output voltage accuracy -----------±2% Low temperature-drift coefficient of the output voltage------------------±100ppm/℃ Only three external components are necessary: An inductor, a Schottky diode and an output filter capacitor High power conversion efficiency---85% Low quiescent current drawn from power source-------------------------------------
ACE701
1. 物料型号: - ACE701系列是CMOS基于PFM步进升压DC-DC转换器。

2. 器件简介: - ACE701系列能够在低至0.8V的供电电压下启动,并能在1.8V输入电压下提供最大200mA的输出电流至3.3V输出。所有这些特性使得ACE701系列适合由单节到四节电池供电的便携设备。ACE701集成了稳定的参考电路和校准技术,能够提供高精度和低温度漂移系数的输出电压。

3. 引脚分配: - SOT-89-3、SOT-23-3、SOT-23-5和SOT-89-5封装,其中SOT-23-5和SOT-89-5封装的设备可以通过CE引脚轻松开关,以最小化待机供电电流。 - | Pin | SOT-89-3 | SOT-23-3 | SOT-23-5 | SOT-89-5 | Function | - | --- | --- | --- | --- | --- | --- | - | Vss(GND) | 1 | 1 | 4 | 4 | 地线 | - | VoUT | 2 | 2 | 2 | 2 | 输出引脚,内部电路的电源 | - | Lx(Ext) | 3 | 3 | 5 | 5 | 开关引脚 | - | NC | | | 3 | 3 | | - | CE | | | 1 | 1 | 芯片使能引脚(高电平有效) |

4. 参数特性: - 输出电压精度:±2% - 输出电压的温度漂移系数:±100ppm/℃ - 仅需三个外部组件:电感、肖特基二极管和输出滤波电容 - 高功率转换效率:85% - 低静态电流:<5.5uA

5. 功能详解: - ACE701系列是升压结构的电压型脉冲频率调制(PFM)升压DC-DC转换器。PFM控制电路是ACE701 IC的核心,通过计算其他模块(感测输入电压、输出电压、输出电流和负载条件)的结果来控制功率开关的占空比,以稳定输出电压。

6. 应用信息: - 适用于PDA、DSC、MP3播放器、电子玩具和无线鼠标的电源;LED电源;单节或双节电池供电设备的电源。

7. 封装信息: - ACE701系列提供SOT-89-3、SOT-23-3、SOT-89-5和SOT-23-5封装,均为无铅封装。具体封装尺寸和引脚分布已在上文提供。
ACE701 价格&库存

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