MAX629EVKIT：MAX629评估板
The MAX629 evaluation kit (EV kit) contains two separate switching-regulator circuits. The first circuit converts a +0.8V to VOUT battery voltage to a +24V LCD backplane bias voltage for currents up to 20mA. The second circuit converts a +0.8V to +12V battery voltage to a -20V voltage for currents up to 20mA. The MAX629 requires a +2.7V to +5.5V supply at VCC, but the inductor can be powered from as low as 0.8V. Both output voltages can be adjusted by changing the feedback-resistor values.
The MAX629 EV kit provides low quiescent current and high efficiency for maximum battery life. Operation up to 300kHz allows the use of a tiny surface-mount inductor. This EV kit is a fully assembled and tested surface-mount circuit board.
关键特性- Output Voltage:
- +24V Positive
- -20V Negative
- Battery Input Voltage:
- +0.8V to VOUT (Positive Output)
- +0.8V to +15V (Negative Output)
- +2.7V to +5.5V VCC Supply Range
- Up to 20mA Output Current
- Internal 28V N-Channel Switch
- 1µA (Max) IC Shutdown Current
- Up to 300kHz Switching Frequency
- Surface-Mount Components
- Fully Assembled and Tested
| 产品应用- 2节和3节电池供电应用
- 高效DC-DC升压转换器
- 掌上电脑
- LCD正或负偏置发生器
- 变容调谐二极管偏置
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