MAX844EVKIT:MAX840、MAX843、MAX844评估板
The MAX840/MAX843/MAX844 ICs are inverting, charge-pump DC-DC converters with low-noise, regulated outputs. Their low output ripple voltage makes these devices ideal for biasing the GaAsFETs commonly found in cellular telephone transmitters.
The MAX840 evaluation kit (EV kit) is a fully assembled and tested surface-mount board. The board is shipped with a MAX840 mounted, but it can be replaced by the MAX843 or MAX844. Provisions are made for mounting two additional resistors, which are required for output voltages other than -2V. A special scope-probe socket is also mounted on the board, so output noise can be observed on an oscilloscope.
关键特性- 1mVp-p Output Voltage Ripple
- 2.5V to 10V Input Range
- Uses 0.22µF Capacitors
- -2V Regulated Output (or Adjustable)
- 4mA Output Current
- Surface-Mount Technology
| 应用- 蜂窝电话
- 连续可调的GaAsFET偏置
- GaAsFET功率放大器模块
- LCD偏置对比度控制
- 个人通信装置、PDA
- 稳定的负电源
- 无线数据记录仪
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数据手册DataSheet