数据手册:MAX618 高压、大电流升压转换器,QSOP封装,还可提供SEPIC、反激拓扑 .pdf [英文Rev.1(PDF,188kB)]
{状况:生产中。}
The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%.
A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor.
The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs.
产品关键特性
- Adjustable Output Voltage Up to +28V
- Up to 93% Efficiency
- Wide Input Voltage Range (+3V to +28V)
- Up to 500mA Output Current at +12V
- 500µA Quiescent Supply Current
- 3µA Shutdown Current
- 250kHz Switching Frequency
- Small 1W, 16-Pin QSOP Package
| 应用与使用范围
- 汽车电源DC-DC转换器
- 工业+24V和+28V系统
- LCD显示器
- 掌上电脑
|
典型工作电路
芯片订购型号
订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
MAX618EEE | 生产中 | QSOP;16引脚;30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅:否材料分析 |
MAX618EEE+ | 生产中 | QSOP;16引脚;30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅:无铅材料分析 |
MAX618EEE+T | 生产中 | QSOP;16引脚;30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅:无铅材料分析 |
MAX618EEE-T | 生产中 | QSOP;16引脚封装信息 | -40°C至+85°C | 参考数据资料 |
MAX618EEE/GG8 | 生产中 | QSOP;16引脚;30.9mm²封装信息 | -40°C至+85°C | RoHS/无铅:否材料分析 |
MAX618EEE/GG8-T | 生产中 | QSOP;封装信息 | -40°C至+85°C | 参考数据资料 |
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