LM2681是TI公司的一款电荷泵（无感应器）产品，LM2681是开关电容器电压转换器，本页介绍了LM2681的产品说明、应用、特性等，并给出了与LM2681相关的TI元器件型号供参考。
LM2681 - 开关电容器电压转换器 - 电荷泵（无感应器） - DC/DC开关稳压器 - TI公司（Texas Instruments，德州仪器）
The LM2681 CMOS charge-pump voltage converter operates as a voltage doubler for an input voltage in the range of +2.5V to +5.5V. Two low cost capacitors and a diode (needed during start-up) is used in this circuit to provide up to 20 mA of output current. The LM2681 can also work as a voltage divider to split a voltage in the range of +1.8V to +11V in half.
The LM2681 operates at 160 kHz oscillator frequency to reduce output resistance and voltage ripple. With an operating current of only 550 µA (operating efficiency greater than 90% with most loads) the LM2681 provides ideal performance for battery powered systems. The device is in a SOT-23, 6-lead package.
- Doubles or Splits Input Supply Voltage
- SOT-23 6-Lead Package
- 15Ω Typical Output Impedance
- 90% Typical Conversion Efficiency at 20 mA
