MAX618：28V、PWM、升压型DC-DC转换器
高压、大电流升压转换器，QSOP封装，还可提供SEPIC、反激拓扑
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.
关键特性
| MAX618：典型工作电路 应用
|
数据手册DataSheet
| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX618.pdf | Rev 2; 04/2015 |
关键参数
| Part Number | VIN (V) | VIN (V) | VOUT1 (V) | VOUT1 (V) | Preset VOUT (V) | IOUT1 (A) | Output Adjust. Method | Switch Type | ICC (mA) | Shutdown Mode Supply Current (µA) | Shutdown Mode Supply Current (µA) | DC-DC Outputs | Oper. Freq. (kHz) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | max | typ | typ | max | See Notes | |||||||
| MAX618 | 3 | 28 | 3 | 28 | 12 | 0.5 | Resistor | Internal | 0.5 | 3 | 8 | 1 | 250 | QSOP/16 | $3.68 @1k |
开发工具
技术资料
质量和环境数据
订购型号
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX618EEE | 停止供货 | MAX618EEE+ | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX618EEE+ | 生产中 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX618EEE+T | 生产中 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX618EEE-T | 停止供货 | MAX618EEE+T | QSOP；16引脚 | -40°C至+85°C | 参考数据资料 |
| MAX618EEE/GG8 | 生产中 | QSOP,；16引脚；30.9mm² | -40°C至+85°C | RoHS/无铅：否 | |
| MAX618EEE/GG8-T | 停止供货 | MAX618EEE+ | QSOP； | -40°C至+85°C | 参考数据资料 |
- MAX618.pdf MAX618
- MAX618.pdf MAX618
- MAX618.pdf MAX618
- Introduction to Spirometers and Important Design Considerations for Selecting Electrical Components MAXQ622
- MAX618.pdf MAX618
- 典型工作电路 MAX618
